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diff --git a/pjnath/docs/doc_ice.h b/pjnath/docs/doc_ice.h
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+/* $Id: doc_ice.h 3553 2011-05-05 06:14:19Z nanang $ */
+/*
+ * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/**
+@defgroup PJNATH_ICE ICE: Interactive Connectivity Establishment
+@brief Interactive Connectivity Establishment (ICE)
+@ingroup PJNATH
+*/
+
+/**
+@defgroup PJNATH_ICE_STREAM_TRANSPORT ICE stream transport
+@brief Transport for media streams using ICE
+@ingroup PJNATH_ICE
+ */
+
+/**
+@defgroup PJNATH_ICE_SESSION ICE Session
+@brief Transport Independent ICE Session
+@ingroup PJNATH_ICE
+ */
+
+/**
+@addtogroup PJNATH_ICE
+\section org Library organizations
+
+See <b>Table of Contents</b> below.
+
+\section ice_intro_sec Introduction to ICE
+
+Interactive Connectivity Establishment (ICE) is the ultimate
+weapon a client can have in its NAT traversal solution arsenals,
+as it promises that if there is indeed one path for two clients
+to communicate, then ICE will find this path. And if there are
+more than one paths which the clients can communicate, ICE will
+use the best/most efficient one.
+
+ICE works by combining several protocols (such as STUN and TURN)
+altogether and offering several candidate paths for the communication,
+thereby maximising the chance of success, but at the same time also
+has the capability to prioritize the candidates, so that the more
+expensive alternative (namely relay) will only be used as the last
+resort when else fails. ICE negotiation process involves several
+stages:
+
+ - candidate gathering, where the client finds out all the possible
+ addresses that it can use for the communication. It may find
+ three types of candidates: host candidate to represent its
+ physical NICs, server reflexive candidate for the address that
+ has been resolved from STUN, and relay candidate for the address
+ that the client has allocated from a TURN relay.
+ - prioritizing these candidates. Typically the relay candidate will
+ have the lowest priority to use since it's the most expensive.
+ - encoding these candidates, sending it to remote peer, and
+ negotiating it with offer-answer.
+ - pairing the candidates, where it pairs every local candidates
+ with every remote candidates that it receives from the remote peer.
+ - checking the connectivity for each candidate pairs.
+ - concluding the result. Since every possible path combinations are
+ checked, if there is a path to communicate ICE will find it.
+
+
+\section icestrans_sec Using ICE transport
+
+The \ref PJNATH_ICE_STREAM_TRANSPORT is a ready to use object which
+performs the above ICE operations as well as provides application with
+interface to send and receive data using the negotiated path.
+
+Please see \ref PJNATH_ICE_STREAM_TRANSPORT on how to use this object.
+
+
+\section ice_owntransport_sec Creating custom ICE transport
+
+If the \ref PJNATH_ICE_STREAM_TRANSPORT is not suitable for use
+for some reason, you will need to implement your own ICE transport,
+by combining the \ref PJNATH_ICE_SESSION with your own means to
+send and receive packets. The \ref PJNATH_ICE_STREAM_TRANSPORT
+provides the best example on how to do this.
+
+
+\section ice_samples_sec Samples
+
+The \ref ice_demo_sample sample demonstrates how to use
+\ref PJNATH_ICE_STREAM_TRANSPORT <b>without</b> using signaling
+protocol such as <b>SIP</b>. It provides interactive user interface
+to create and manage the ICE sessions as well as to exchange SDP
+with another ice_demo instance.
+
+Also see <b>\ref samples_page</b> for other samples.
+ */
+
+
diff --git a/pjnath/docs/doc_mainpage.h b/pjnath/docs/doc_mainpage.h
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+/* $Id: doc_mainpage.h 3553 2011-05-05 06:14:19Z nanang $ */
+/*
+ * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+/**
+
+@mainpage PJNATH - Open Source ICE, STUN, and TURN Library
+
+PJNATH (PJSIP NAT Helper) is an open source library providing NAT traversal
+functionalities by using standard based protocols such as STUN, TURN, and ICE.
+
+
+\section background Background
+
+
+Network Address Translation (NAT) is commonly deployed everywhere primarily to
+alleviate the exhaustion of IPv4 address space by allowing multiple hosts to
+share a public/Internet address. While NAT would work well for typical client
+server communications (such as web and email), since it's always the client
+that initiates the conversation and normally client doesn't need to maintain
+the connection for a long time, installation of NAT would cause major problem
+for peer-to-peer communication, such as (and especially) VoIP.
+
+<strong>\ref nat_intro "Read more.."</strong>
+
+
+\section intro Introduction to PJNATH
+
+PJSIP NAT Helper (PJNATH) is a library which contains the implementation of
+standard based NAT traversal solutions. PJNATH can be used as a stand-alone
+library for your software, or you may use PJSUA-LIB library, a very high level
+ library integrating PJSIP, PJMEDIA, and PJNATH into simple to use APIs.
+
+PJNATH has the following features:
+
+ - <strong>STUNbis</strong> implementation,\n
+ providing both ready to use
+ STUN-aware socket and framework to implement higher level STUN based
+ protocols such as TURN and ICE. The implementation complies to
+ <A HREF="http://www.ietf.org/rfc/rfc5389.txt">RFC 5389</A>
+ standard.\n\n
+
+ - <strong>NAT type detection</strong>, \n
+ performs detection of the NAT type in front of the endpoint, according
+ to <A HREF="http://www.ietf.org/rfc/rfc3489.txt">RFC 3489</A>.
+ While the practice to detect the NAT type to assist NAT
+ traversal has been deprecated in favor of ICE, the information may still
+ be useful for troubleshooting purposes, hence the utility is provided.\n\n
+
+ - <strong>Traversal Using Relays around NAT (TURN)</strong> implementation.\n
+ TURN is a protocol for relaying communications by means of using relay,
+ and combined with ICE it provides efficient last effort alternative for
+ the communication path. The TURN implementation in PJNATH complies to
+ <A HREF="http://www.ietf.org/internet-drafts/draft-ietf-behave-turn-14.txt">
+ draft-ietf-behave-turn-14</A> draft.\n\n
+
+ - <strong>Interactive Connectivity Establishmen (ICE)</strong> implementation.\n
+ ICE is a protocol for discovering communication path(s) between two
+ endpoints. The implementation in PJNATH complies to
+ <A HREF="http://www.ietf.org/internet-drafts/draft-ietf-mmusic-ice-19.txt">
+ draft-ietf-mmusic-ice-19.txt</A> draft
+
+In the future, more protocols will be implemented (such as UPnP IGD, and
+SOCKS5).
+
+
+\section pjnath_organization_sec Library Organization
+
+The library provides the following main component groups:
+
+ - \ref PJNATH_STUN\n\n
+ - \ref PJNATH_TURN\n\n
+ - \ref PJNATH_ICE\n\n
+ - \ref PJNATH_NAT_DETECT\n\n
+
+Apart from the \ref PJNATH_NAT_DETECT, each component group are further
+divided into two functionalities:
+
+ - <b>Transport objects</b>\n
+ The transport objects (such as STUN transport, TURN transport, and ICE
+ stream transport) are the implementation of the session object
+ <strong>with</strong> particular transport/sockets. They are provided
+ as ready to use objects for applications.\n\n
+
+ - <b>Transport independent/session layer</b>\n
+ The session objects (such as STUN session, TURN session, and ICE session)
+ are the core object for maintaining the protocol session, and it is
+ independent of transport (i.e. it does not "own" a socket). This way
+ developers can reuse these session objects for any kind of transports,
+ such as UDP, TCP, or TLS, with or without using PJLIB socket API.
+ The session objects provide function and callback to send and receive
+ packets respectively.
+
+For more information about each component groups, please click the component
+link above.
+
+
+\section pjnath_start_sec Getting Started with PJNATH
+
+\subsection dependency Library Dependencies
+
+The PJNATH library depends (and only depends) on PJLIB and PJLIB-UTIL
+libraries. All these libraries should have been packaged together with
+the main PJSIP distribution. You can download the PJSIP distribution
+from <A HREF="http://www.pjsip.org">PJSIP website</A>
+
+
+\subsection pjnath_using_sec Using the libraries
+
+Please click on the appropriate component under \ref pjnath_organization_sec
+section above, which will take you to the documentation on how to use the
+component.
+
+
+\subsection samples_sec Samples
+
+We attempt to provide simple samples to use each functionality of the PJNATH
+library.
+
+Please see <b>\ref samples_page</b> page for the list of samples.
+
+
+*/
+
+
+
+/**
+@defgroup samples_page PJNATH Samples and screenshots
+@brief Sample applications and screenshots
+ */
+
+
diff --git a/pjnath/docs/doc_nat.h b/pjnath/docs/doc_nat.h
new file mode 100644
index 0000000..1fdda7a
--- /dev/null
+++ b/pjnath/docs/doc_nat.h
@@ -0,0 +1,415 @@
+/* $Id: doc_nat.h 3553 2011-05-05 06:14:19Z nanang $ */
+/*
+ * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+/**
+
+@defgroup nat_intro Introduction to Network Address Translation (NAT) and NAT Traversal
+@brief This page describes NAT and the problems caused by it and the solutions
+
+
+
+\section into Introduction to NAT
+
+
+NAT (Network Address Translation) is a mechanism where a device performs
+modifications to the TCP/IP address/port number of a packet and maps the
+IP address from one realm to another (usually from private IP address to
+public IP address and vice versa). This works by the NAT device allocating
+a temporary port number on the public side of the NAT upon forwarding
+outbound packet from the internal host towards the Internet, maintaining
+this mapping for some predefined time, and forwarding the inbound packets
+received from the Internet on this public port back to the internal host.
+
+
+NAT devices are installed primarily to alleviate the exhaustion of IPv4
+address space by allowing multiple hosts to share a public/Internet address.
+Also due to its mapping nature (i.e. a mapping can only be created by
+a transmission from an internal host), NAT device is preferred to be
+installed even when IPv4 address exhaustion is not a problem (for example
+when there is only one host at home), to provide some sort of security/shield
+for the internal hosts against threats from the Internet.
+
+
+Despite the fact that NAT provides some shields for the internal network,
+one must distinguish NAT solution from firewall solution. NAT is not
+a firewall solution. A firewall is a security solution designed to enforce
+the security policy of an organization, while NAT is a connectivity solution
+to allow multiple hosts to use a single public IP address. Understandably
+both functionalities are difficult to separate at times, since many
+(typically consumer) products claims to do both with the same device and
+simply label the device a “NAT box”. But we do want to make this distinction
+rather clear, as PJNATH is a NAT traversal helper and not a firewall bypass
+solution (yet).
+
+
+
+\section problems The NAT traversal problems
+
+
+While NAT would work well for typical client server communications (such as
+web and email), since it's always the client that initiates the conversation
+and normally client doesn't need to maintain the connection for a long time,
+installation of NAT would cause major problem for peer-to-peer communication,
+such as (and especially) VoIP. These problems will be explained in more detail
+below.
+
+
+\subsection peer_addr Peer address problem
+
+
+In VoIP, normally we want the media (audio, and video) to flow directly
+between the clients, since relaying is costly (both in terms of bandwidth
+cost for service provider, and additional latency introduced by relaying).
+To do this, each client informs its media transport address to the other
+client , by sending it via the VoIP signaling path, and the other side would
+send its media to this transport address.
+
+
+And there lies the problem. If the client software is not NAT aware, then
+it would send its private IP address to the other client, and the other
+client would not be able to send media to this address.
+
+
+Traditionally this was solved by using STUN. With this mechanism, the client
+first finds out its public IP address/port by querying a STUN server, then
+send sthis public address instead of its private address to the other
+client. When both sides are using this mechanism, they can then send media
+packets to these addresses, thereby creating a mapping in the NAT (also
+called opening a "hole", hence this mechanism is also popularly called
+"hole punching") and both can then communicate with each other.
+
+
+But this mechanism does not work in all cases, as will be explained below.
+
+
+
+\subsection hairpin Hairpinning behavior
+
+
+Hairpin is a behavior where a NAT device forwards packets from a host in
+internal network (lets call it host A) back to some other host (host B) in
+the same internal network, when it detects that the (public IP address)
+destination of the packet is actually a mapped IP address that was created
+for the internal host (host B). This is a desirable behavior of a NAT,
+but unfortunately not all NAT devices support this.
+
+
+Lacking this behavior, two (internal) hosts behind the same NAT will not
+be able to communicate with each other if they exchange their public
+addresses (resolved by STUN above) to each other.
+
+
+
+\subsection symmetric Symmetric behavior
+
+
+NAT devices don't behave uniformly and people have been trying to classify
+their behavior into different classes. Traditionally NAT devices are
+classified into Full Cone, Restricted Cone, Port Restricted Cone, and
+Symmetric types, according to <A HREF="http://www.ietf.org/rfc/rfc3489.txt">RFC 3489</A>
+section 5. A more recent method of classification, as explained by
+<A HREF="http://www.ietf.org/rfc/rfc4787.txt">RFC 4787</A>, divides
+the NAT behavioral types into two attributes: the mapping behavior
+attribute and the filtering behavior attribute. Each attribute can be
+one of three types: <i>Endpoint-Independent</i>, <i>Address-Dependent</i>,
+or <i>Address and Port-Dependent</i>. With this new classification method,
+a Symmetric NAT actually is an Address and Port-Dependent mapping NAT.
+
+
+Among these types, the Symmetric type is the hardest one to work with.
+The problem is because the NAT allocates different mapping (of the same
+internal host) for the communication to the STUN server and the
+communication to the other (external) hosts, so the IP address/port that
+is informed by one host to the other is meaningless for the recipient
+since this is not the actual IP address/port mapping that the NAT device
+creates. The result is when the recipient host tries to send a packet to
+this address, the NAT device would drop the packet since it does not
+recognize the sender of the packet as the "authorized" hosts to send
+to this address.
+
+
+There are two solutions for this. The first, we could make the client
+smarter by switching transmission of the media to the source address of
+the media packets. This would work since normally clients uses a well
+known trick called symmetric RTP, where they use one socket for both
+transmitting and receiving RTP/media packets. We also use this
+mechanism in PJMEDIA media transport. But this solution only works
+if a client behind a symmetric NAT is not communicating with other
+client behind either symmetric NAT or port-restricted NAT.
+
+
+The second solution is to use media relay, but as have been mentioned
+above, relaying is costly, both in terms of bandwidth cost for service
+provider and additional latency introduced by relaying.
+
+
+
+\subsection binding_timeout Binding timeout
+
+When a NAT device creates a binding (a public-private IP address
+mapping), it will associate a timer with it. The timer is used to
+destroy the binding once there is no activity/traffic associated with
+the binding. Because of this, a NAT aware application that wishes to
+keep the binding open must periodically send outbound packets,
+a mechanism known as keep-alive, or otherwise it will ultimately
+loose the binding and unable to receive incoming packets from Internet.
+
+
+\section solutions The NAT traversal solutions
+
+
+\subsection stun Old STUN (RFC 3489)
+
+The original STUN (Simple Traversal of User Datagram Protocol (UDP)
+Through Network Address Translators (NATs)) as defined by
+<A HREF="http://www.ietf.org/rfc/rfc3489.txt">RFC 3489</A>
+(published in 2003, but the work was started as early as 2001) was
+meant to be a standalone, standard-based solution for the NAT
+connectivity problems above. It is equipped with NAT type detection
+algoritm and methods to hole-punch the NAT in order to let traffic
+to get through and has been proven to be quite successful in
+traversing many types of NATs, hence it has gained a lot of popularity
+ as a simple and effective NAT traversal solution.
+
+But since then the smart people at IETF has realized that STUN alone
+is not going to be enough. Besides its nature that STUN solution cannot
+solve the symmetric-to-symmetric or port-restricted connection,
+people have also discovered that NAT behavior can change for different
+traffic (or for the same traffic overtime) hence it was concluded that
+NAT type detection could produce unreliable results hence one should not
+rely too much on it.
+
+Because of this, STUN has since moved its efforts to different strategy.
+Instead of attempting to provide a standalone solution, it's now providing
+a part solution and framework to build other (STUN based) protocols
+on top of it, such as TURN and ICE.
+
+
+\subsection stunbis STUN/STUNbis (RFC 5389)
+
+The Session Traversal Utilities for NAT (STUN) is the further development
+of the old STUN. While it still provides a mechanism for a client to
+query its public/mapped address to a STUN server, it has deprecated
+the use of NAT type detection, and now it serves as a framework to build
+other protocols on top of it (such as TURN and ICE).
+
+
+\subsection midcom_turn Old TURN (draft-rosenberg-midcom-turn)
+
+Traversal Using Relay NAT (TURN), a standard-based effort started as early
+as in November 2001, was meant to be the complementary method for the
+(old) STUN to complete the solution. The original idea was the host to use
+STUN to detect the NAT type, and when it has found that the NAT type is
+symmetric it would use TURN to relay the traffic. But as stated above,
+this approach was deemed to be unreliable, and now the prefered way to use
+TURN (and it's a new TURN specification as well) is to combine it with ICE.
+
+
+\subsection turn TURN (draft-ietf-behave-turn)
+
+Traversal Using Relays around NAT (TURN) is the latest development of TURN.
+While the protocol details have changed a lot, the objective is still
+the same, that is to provide relaying control for the application.
+As mentioned above, preferably TURN should be used with ICE since relaying
+is costly in terms of both bandwidth and latency, hence it should be used
+as the last resort.
+
+
+\subsection b2bua B2BUA approach
+
+A SIP Back to Back User Agents (B2BUA) is a SIP entity that sits in the
+middle of SIP traffic and acts as SIP user agents on both call legs.
+The primary motivations to have a B2BUA are to be able to provision
+the call (e.g. billing, enforcing policy) and to help with NAT traversal
+for the clients. Normally a B2BUA would be equipped with media relaying
+or otherwise it wouldn't be very useful.
+
+Products that fall into this category include SIP Session Border
+Controllers (SBC), and PBXs such as Asterisk are technically a B2BUA
+as well.
+
+The benefit of B2BUA with regard to helping NAT traversal is it does not
+require any modifications to the client to make it go through NATs.
+And since basically it is a relay, it should be able to traverse
+symmetric NAT successfully.
+
+However, since it is a relay, the usual relaying drawbacks apply,
+namely the bandwidth and latency issue. More over, since a B2BUA acts
+as user agent in either call-legs (i.e. it terminates the SIP
+signaling/call on one leg, albeit it creates another call on the other
+leg), it may also introduce serious issues with end-to-end SIP signaling.
+
+
+\subsection alg ALG approach
+
+Nowdays many NAT devices (such as consumer ADSL routers) are equipped
+with intelligence to inspect and fix VoIP traffic in its effort to help
+it with the NAT traversal. This feature is called Application Layer
+Gateway (ALG) intelligence. The idea is since the NAT device knows about
+the mapping, it might as well try to fix the application traffic so that
+the traffic could better traverse the NAT. Some tricks that are
+performed include for example replacing the private IP addresses/ports
+in the SIP/SDP packet with the mapped public address/port of the host
+that sends the packet.
+
+Despite many claims about its usefullness, in reality this has given us
+more problems than the fix. Too many devices such as these break the
+SIP signaling, and in more advanced case, ICE negotiation. Some
+examples of bad situations that we have encountered in the past:
+
+ - NAT device alters the Via address/port fields in the SIP response
+ message, making the response fail to pass SIP response verification
+ as defined by SIP RFC.
+ - In other case, the modifications in the Via headers of the SIP
+ response hides the important information from the SIP server,
+ nameny the actual IP address/port of the client as seen by the SIP
+ server.
+ - Modifications in the Contact URI of REGISTER request/response makes
+ the client unable to detect it's registered binding.
+ - Modifications in the IP addresses/ports in SDP causes ICE
+ negotiation to fail with ice-mismatch status.
+ - The complexity of the ALG processing in itself seems to have caused
+ the device to behave erraticly with managing the address bindings
+ (e.g. it creates a new binding for the second packet sent by the
+ client, even when the previous packet was sent just second ago, or
+ it just sends inbound packet to the wrong host).
+
+
+Many man-months efforts have been spent just to troubleshoot issues
+caused by these ALG (mal)functioning, and as it adds complexity to
+the problem rather than solving it, in general we do not like this
+approach at all and would prefer it to go away.
+
+
+\subsection upnp UPnP
+
+The Universal Plug and Play (UPnP) is a set of protocol specifications
+to control network appliances and one of its specification is to
+control NAT device. With this protocol, a client can instruct the
+NAT device to open a port in the NAT's public side and use this port
+for its communication. UPnP has gained popularity due to its
+simplicity, and one can expect it to be available on majority of
+NAT devices.
+
+The drawback of UPnP is since it uses multicast in its communication,
+it will only allow client to control one NAT device that is in the
+same multicast domain. While this normally is not a problem in
+household installations (where people normally only have one NAT
+router), it will not work if the client is behind cascaded routers
+installation. More over uPnP has serious issues with security due to
+its lack of authentication, it's probably not the prefered solution
+for organizations.
+
+\subsection other Other solutions
+
+Other solutions to NAT traversal includes:
+
+ - SOCKS, which supports UDP protocol since SOCKS5.
+
+
+
+\section ice ICE Solution - The Protocol that Works Harder
+
+A new protocol is being standardized (it's in Work Group Last Call/WGLC
+stage at the time this article was written) by the IETF, called
+Interactive Connectivity Establishment (ICE). ICE is the ultimate
+weapon a client can have in its NAT traversal solution arsenals,
+as it promises that if there is indeed one path for two clients
+to communicate, then ICE will find this path. And if there are
+more than one paths which the clients can communicate, ICE will
+use the best/most efficient one.
+
+ICE works by combining several protocols (such as STUN and TURN)
+altogether and offering several candidate paths for the communication,
+thereby maximising the chance of success, but at the same time also
+has the capability to prioritize the candidates, so that the more
+expensive alternative (namely relay) will only be used as the last
+resort when else fails. ICE negotiation process involves several
+stages:
+
+ - candidate gathering, where the client finds out all the possible
+ addresses that it can use for the communication. It may find
+ three types of candidates: host candidate to represent its
+ physical NICs, server reflexive candidate for the address that
+ has been resolved from STUN, and relay candidate for the address
+ that the client has allocated from a TURN relay.
+ - prioritizing these candidates. Typically the relay candidate will
+ have the lowest priority to use since it's the most expensive.
+ - encoding these candidates, sending it to remote peer, and
+ negotiating it with offer-answer.
+ - pairing the candidates, where it pairs every local candidates
+ with every remote candidates that it receives from the remote peer.
+ - checking the connectivity for each candidate pairs.
+ - concluding the result. Since every possible path combinations are
+ checked, if there is a path to communicate ICE will find it.
+
+
+There are many benetifs of ICE:
+
+ - it's standard based.
+ - it works where STUN works (and more)
+ - unlike standalone STUN solution, it solves the hairpinning issue,
+ since it also offers host candidates.
+ - just as relaying solutions, it works with symmetric NATs. But unlike
+ plain relaying, relay is only used as the last resort, thereby
+ minimizing the bandwidth and latency issue of relaying.
+ - it offers a generic framework for offering and checking address
+ candidates. While the ICE core standard only talks about using STUN
+ and TURN, implementors can add more types of candidates in the ICE
+ offer, for example UDP over TCP or HTTP relays, or even uPnP
+ candidates, and this could be done transparently for the remote
+ peer hence it's compatible and usable even when the remote peer
+ does not support these.
+ - it also adds some kind of security particularly against DoS attacks,
+ since media address must be acknowledged before it can be used.
+
+
+Having said that, ICE is a complex protocol to implement, making
+interoperability an issue, and at this time of writing we don't see
+many implementations of it yet. Fortunately, PJNATH has been one of
+the first hence more mature ICE implementation, being first released
+on mid-2007, and we have been testing our implementation at
+<A HREF="http://www.sipit.net">SIP Interoperability Test (SIPit)</A>
+events regularly, so hopefully we are one of the most stable as well.
+
+
+\section pjnath PJNATH - The building blocks for effective NAT traversal solution
+
+PJSIP NAT Helper (PJNATH) is a library which contains the implementation
+of standard based NAT traversal solutions. PJNATH can be used as a
+stand-alone library for your software, or you may use PJSUA-LIB library,
+a very high level library integrating PJSIP, PJMEDIA, and PJNATH into
+simple to use APIs.
+
+PJNATH has the following features:
+
+ - STUNbis implementation, providing both ready to use STUN-aware socket
+ and framework to implement higher level STUN based protocols such as
+ TURN and ICE.
+ - NAT type detection, useful for troubleshooting purposes.
+ - TURN implementation.
+ - ICE implementation.
+
+
+More protocols will be implemented in the future.
+
+Go back to \ref index.
+
+ */
diff --git a/pjnath/docs/doc_samples.h b/pjnath/docs/doc_samples.h
new file mode 100644
index 0000000..68d4f6f
--- /dev/null
+++ b/pjnath/docs/doc_samples.h
@@ -0,0 +1,93 @@
+/* $Id: doc_samples.h 3553 2011-05-05 06:14:19Z nanang $ */
+/*
+ * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+/**
+@addtogroup samples_page
+
+Several samples that are included in the PJSIP distributions. The screenshots
+below were taken on a Windows machine, but the library is very portable and
+it is known to run on platforms such as Linux, MacOS X, Windows Mobile,
+Symbian, and so on.
+
+ - @ref ice_demo_sample\n
+ This sample demonstrates how to use \ref PJNATH_ICE_STREAM_TRANSPORT
+ <b>without</b> using signaling protocol such as <b>SIP</b>. It provides
+ interactive user interface to create and manage the ICE sessions as well
+ as to exchange SDP with another ice_demo instance.\n\n
+ \image html ice_demo.jpg "ice_demo on WinXP"
+
+ - @ref turn_client_sample\n
+ This sample demonstrates how to use \ref PJNATH_TURN_SOCK
+ and also \ref PJNATH_STUN_SOCK. It provides interactive
+ user interface to manage allocation, permissions, and
+ channel bindings.\n\n
+ \image html pjturn_client.jpg "pjturn_client on WinXP"
+
+ - TURN server sample\n
+ This is a simple sample TURN server application, which
+ we mainly use for testing (as back then there is no TURN
+ server available).\n
+ The source code for this application are in <tt><b>pjnath/src/pjturn-srv</b></tt>
+ directory.
+
+ */
+
+
+/**
+\page turn_client_sample pjturn-client, a sample TURN client
+
+This is a simple, interactive TURN client application, with the
+following features:
+ - DNS SRV resolution
+ - TCP connection to TURN server
+ - Optional fingerprint
+
+This file is pjnath/src/pjturn-client/client_main.c.
+
+Screenshot on WinXP: \image html pjturn_client.jpg "pjturn_client on WinXP"
+
+\includelineno client_main.c.
+*/
+
+
+/**
+\page ice_demo_sample ice_demo, an interactive ICE endpoint
+
+This sample demonstrates how to use \ref PJNATH_ICE_STREAM_TRANSPORT
+<b>without</b> using signaling protocol such as SIP. It provides
+interactive user interface to create and manage the ICE sessions as well
+as to exchange SDP with another ice_demo instance.
+
+Features of the demo application:
+ - supports host, STUN, and TURN candidates
+ - disabling of host candidates
+ - DNS SRV resolution for STUN and TURN servers
+ - TCP connection to TURN server
+ - Optional use of fingerprint for TURN
+ - prints and parse SDP containing ICE infos
+ - exchange SDP with copy/paste
+
+This file is pjsip-apps/src/samples/icedemo.c
+
+Screenshot on WinXP: \image html ice_demo.jpg "ice_demo on WinXP"
+
+\includelineno icedemo.c.
+*/
+
diff --git a/pjnath/docs/doc_stun.h b/pjnath/docs/doc_stun.h
new file mode 100644
index 0000000..6f4fdb0
--- /dev/null
+++ b/pjnath/docs/doc_stun.h
@@ -0,0 +1,134 @@
+/* $Id: doc_stun.h 3553 2011-05-05 06:14:19Z nanang $ */
+/*
+ * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+/**
+@defgroup PJNATH_STUN STUN: Session Traversal Utilities for NAT
+@ingroup PJNATH
+@brief Open source STUN library
+ */
+
+/**
+@defgroup PJNATH_STUN_SOCK STUN-aware socket transport
+@brief STUN aware UDP socket transport
+@ingroup PJNATH_STUN
+ */
+
+
+/**
+@defgroup PJNATH_STUN_SESSION STUN session
+@brief STUN client and server session
+@ingroup PJNATH_STUN
+ */
+
+/**
+@defgroup PJNATH_STUN_BASE Base STUN objects
+@ingroup PJNATH_STUN
+@brief STUN data structures, objects, and configurations
+
+These section contains STUN base data structures as well as
+configurations. Among other things it contains STUN message
+representation and parsing, transactions, authentication
+framework, as well as compile-time and run-time configurations.
+*/
+
+
+/**
+@addtogroup PJNATH_STUN
+
+This module contains implementation of STUN library in PJNATH -
+the open source NAT helper containing STUN and ICE.
+
+\section stun_org_sec Library organizations
+
+The STUN part of PJNATH consists of the the following sections (see
+<b>Table of Contents</b> below).
+
+
+\section stun_using_sec Using the STUN transport
+
+The \ref PJNATH_STUN_SOCK is a ready to use object which provides
+send and receive interface for communicating UDP packets as well as
+means to communicate with the STUN server and manage the STUN mapped
+address.
+
+Some features of the \ref PJNATH_STUN_SOCK:
+ - API to send and receive UDP packets,
+ - interface to query the STUN mapped address info,
+ - multiplex STUN and non-STUN incoming packets and distinguish between
+ STUN responses that belong to internal requests with application data
+ (the application data may be STUN packets as well),
+ - resolution of the STUN server with DNS SRV query (if wanted),
+ - maintaining STUN keep-alive, and
+ - handle changes in STUN mapped address binding.
+
+Please see \ref PJNATH_STUN_SOCK for more information.
+
+
+\section stun_advanced_sec Advanced use of the STUN components
+
+The rest of the STUN part of the library provides lower level objects
+which can be used to build your own STUN based transport or
+protocols (officially called STUN usages). These will be explained
+briefly below.
+
+
+\subsection stun_sess_sec The STUN session
+
+A STUN session is interactive information exchange between two STUN
+endpoints that lasts for some period of time. It is typically started by
+an outgoing or incoming request, and consists of several requests,
+responses, and indications. All requests and responses within the session
+typically share a same credential.
+
+The \ref PJNATH_STUN_SESSION is a transport-independent object to
+manage a client or server STUN session. It is one of the core object in
+PJNATH, and it is used by several higher level objects including the
+\ref PJNATH_STUN_SOCK, \ref PJNATH_TURN_SESSION, and \ref PJNATH_ICE_SESSION.
+
+The \ref PJNATH_STUN_SESSION has the following features:
+ - transport independent
+ - authentication management
+ - static or dynamic credential
+ - client transaction management
+ - server transaction management
+
+For more information, including how to use it please see
+\ref PJNATH_STUN_SESSION.
+
+
+\subsection stun_extending_sec Extending STUN to support other usages
+
+At present, the STUN subsystem in PJNATH supports STUN Binding, TURN, and
+ICE usages. If other usages are to be supported, typically you would need
+to add new STUN methods (and the corresponding request and response message
+types), attributes, and error codes to \ref PJNATH_STUN_MSG subsystem of
+PJNATH, as well as implementing the logic for the STUN usage.
+
+
+\section stunsamples_sec STUN samples
+
+The \ref turn_client_sample sample application also contains sample
+code to use \ref PJNATH_STUN_SOCK.
+
+Also see <b>\ref samples_page</b> for other samples.
+
+
+ */
+
diff --git a/pjnath/docs/doc_turn.h b/pjnath/docs/doc_turn.h
new file mode 100644
index 0000000..e24cfdc
--- /dev/null
+++ b/pjnath/docs/doc_turn.h
@@ -0,0 +1,164 @@
+/* $Id: doc_turn.h 3553 2011-05-05 06:14:19Z nanang $ */
+/*
+ * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+/**
+@defgroup PJNATH_TURN TURN: Traversal Using Relays around NAT
+@brief TURN protocol implementation
+@ingroup PJNATH
+
+\section turn_intro_sec Introduction to TURN
+
+When a direct communication path cannot be found, it is necessary to
+use the services of an intermediate host that acts as a relay for the
+packets. This relay typically sits in the public Internet and relays
+packets between two hosts that both sit behind NATs.
+
+TURN allows a host behind a NAT (called the TURN client) to request that
+another host (called the TURN server) act as a relay. The client can
+arrange for the server to relay packets to and from certain other hosts
+(called peers) and can control aspects of how the relaying is done.
+The client does this by obtaining an IP address and port on the
+server, called the relayed-transport-address. When a peer sends a
+packet to the relayed-transport-address, the server relays the packet
+to the client. When the client sends a data packet to the server,
+the server relays it to the appropriate peer using the relayed-
+transport-address as the source.
+
+
+\section turn_op_sec Overview of TURN operations
+
+<b>Discovering TURN server</b>.\n
+Client learns the IP address of the TURN
+server either through some privisioning or by querying DNS SRV records
+for TURN service for the specified domain. Client may use UDP or TCP (or
+TLS) to connect to the TURN server.
+
+<b>Authentication</b>.\n
+All TURN operations requires the use of authentication
+(it uses STUN long term autentication method), hence client must be
+configured with the correct credential to use the service.
+
+<b>Allocation</b>.\n
+Client creates one "relay port" (or called <b>relayed-transport-address</b>
+in TURN terminology) in the TURN server by sending TURN \a Allocate request,
+hence this process is called creating allocation. Once the allocation is
+successful, client will be given the IP address and port of the "relay
+port" in the Allocate response.
+
+<b>Sending data through the relay</b>.\n
+Once allocation has been created, client may send data to any remote
+endpoints (called peers in TURN terminology) via the "relay port". It does
+so by sending Send Indication to the TURN server, giving the peer address
+in the indication message. But note that at this point peers are not allowed
+to send data towards the client (via the "relay port") before permission is
+installed for that peer.
+
+<b>Creating permissions</b>.\n
+Permission needs to be created in the TURN server so that a peer can send
+data to the client via the relay port (a peer in this case is identified by
+its IP address). Without this, when the TURN server receives data from the
+peer in the "relay port", it will drop this data.
+
+<b>Receiving data from peers</b>.\n
+Once permission has been installed for the peer, any data received by the
+TURN server (from that peer) in the "relay port" will be relayed back to
+client by using Data Indication.
+
+<b>Using ChannelData</b>.\n
+TURN provides optimized framing to the data by using ChannelData
+packetization. The client activates this format by sending ChannelBind
+request to the TURN server, which provides (channel) binding which maps a
+particular peer address with a channel number. Data sent or received to/for
+this peer will then use ChannelData format instead of Send or Data
+Indications.
+
+<b>Refreshing the allocation, permissions, and channel bindings</b>.\n
+Allocations, permissions, and channel bindings need to be refreshed
+periodically by client, or otherwise they will expire.
+
+<b>Destroying the allocation</b>.\n
+Once the "relay port" is no longer needed, client destroys the allocation
+by sending Refresh request with LIFETIME attribute set to zero.
+
+
+\section turn_org_sec Library organizations
+
+The TURN functionalities in PJNATH primarily consist of
+\ref PJNATH_TURN_SOCK and \ref PJNATH_TURN_SESSION. Please see more
+below.
+
+
+\section turn_using_sec Using TURN transport
+
+The \ref PJNATH_TURN_SOCK is a ready to use object for relaying
+application data via a TURN server, by managing all the operations
+above.
+
+Among other things it provides the following features:
+ - resolution of the TURN server with DNS SRV
+ - interface to create allocation, permissions, and channel
+ bindings
+ - interface to send and receive packets through the relay
+ - provides callback to notify the application about incoming data
+ - managing the allocation, permissions, and channel bindings
+
+Please see \ref PJNATH_TURN_SOCK for more documentation about and
+on how to use this object.
+
+
+\section turn_owntransport_sec Creating custom TURN transport
+
+The \ref PJNATH_TURN_SESSION is a transport-independent object to
+manage a client TURN session. It contains the core logic for managing
+the TURN client session as listed in TURN operations above, but
+in transport-independent manner (i.e. it doesn't have a socket), so
+that developer can integrate TURN client functionality into existing
+framework that already has its own means to send and receive data,
+or to support new transport types to TURN, such as TLS.
+
+You can create your own (custom) TURN transport by wrapping this
+into your own object, and provide it with the means to send and
+receive packets.
+
+Please see \ref PJNATH_TURN_SESSION for more information.
+
+
+\section turn_samples_sec Samples
+
+The \ref turn_client_sample is a sample application to use the
+\ref PJNATH_TURN_SOCK. Also there is a sample TURN server in
+the distribution as well.
+
+Also see <b>\ref samples_page</b> for other samples.
+
+ */
+
+
+/**
+ * @defgroup PJNATH_TURN_SOCK TURN client transport
+ * @brief Client transport utilizing TURN relay
+ * @ingroup PJNATH_TURN
+ */
+
+/**
+ * @defgroup PJNATH_TURN_SESSION TURN client session
+ * @brief Transport independent TURN client session
+ * @ingroup PJNATH_TURN
+ */
diff --git a/pjnath/docs/doxygen.cfg b/pjnath/docs/doxygen.cfg
new file mode 100644
index 0000000..70bf6f7
--- /dev/null
+++ b/pjnath/docs/doxygen.cfg
@@ -0,0 +1,1033 @@
+# Doxyfile 1.3-rc3
+
+# This file describes the settings to be used by the documentation system
+# doxygen (www.doxygen.org) for a project
+#
+# All text after a hash (#) is considered a comment and will be ignored
+# The format is:
+# TAG = value [value, ...]
+# For lists items can also be appended using:
+# TAG += value [value, ...]
+# Values that contain spaces should be placed between quotes (" ")
+
+#---------------------------------------------------------------------------
+# General configuration options
+#---------------------------------------------------------------------------
+
+# The PROJECT_NAME tag is a single word (or a sequence of words surrounded
+# by quotes) that should identify the project.
+
+PROJECT_NAME = "PJNATH Reference"
+
+# The PROJECT_NUMBER tag can be used to enter a project or revision number.
+# This could be handy for archiving the generated documentation or
+# if some version control system is used.
+
+PROJECT_NUMBER = $(PJ_VERSION)
+
+# The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute)
+# base path where the generated documentation will be put.
+# If a relative path is entered, it will be relative to the location
+# where doxygen was started. If left blank the current directory will be used.
+
+OUTPUT_DIRECTORY = docs/$(PJ_VERSION)
+
+# The OUTPUT_LANGUAGE tag is used to specify the language in which all
+# documentation generated by doxygen is written. Doxygen will use this
+# information to generate all constant output in the proper language.
+# The default language is English, other supported languages are:
+# Brazilian, Catalan, Chinese, Chinese-Traditional, Croatian, Czech, Danish, Dutch,
+# Finnish, French, German, Greek, Hungarian, Italian, Japanese, Japanese-en
+# (Japanese with english messages), Korean, Norwegian, Polish, Portuguese,
+# Romanian, Russian, Serbian, Slovak, Slovene, Spanish, Swedish and Ukrainian.
+
+OUTPUT_LANGUAGE = English
+
+# If the EXTRACT_ALL tag is set to YES doxygen will assume all entities in
+# documentation are documented, even if no documentation was available.
+# Private class members and static file members will be hidden unless
+# the EXTRACT_PRIVATE and EXTRACT_STATIC tags are set to YES
+
+EXTRACT_ALL = NO
+
+# If the EXTRACT_PRIVATE tag is set to YES all private members of a class
+# will be included in the documentation.
+
+EXTRACT_PRIVATE = NO
+
+# If the EXTRACT_STATIC tag is set to YES all static members of a file
+# will be included in the documentation.
+
+EXTRACT_STATIC = NO
+
+# If the EXTRACT_LOCAL_CLASSES tag is set to YES classes (and structs)
+# defined locally in source files will be included in the documentation.
+# If set to NO only classes defined in header files are included.
+
+EXTRACT_LOCAL_CLASSES = YES
+
+# If the HIDE_UNDOC_MEMBERS tag is set to YES, Doxygen will hide all
+# undocumented members of documented classes, files or namespaces.
+# If set to NO (the default) these members will be included in the
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+HIDE_UNDOC_MEMBERS = NO
+
+# If the HIDE_UNDOC_CLASSES tag is set to YES, Doxygen will hide all
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+# If set to NO (the default) these class will be included in the various
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+HIDE_UNDOC_CLASSES = NO
+
+# If the HIDE_FRIEND_COMPOUNDS tag is set to YES, Doxygen will hide all
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+HIDE_FRIEND_COMPOUNDS = NO
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+# If the HIDE_IN_BODY_DOCS tag is set to YES, Doxygen will hide any
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+# If the BRIEF_MEMBER_DESC tag is set to YES (the default) Doxygen will
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+BRIEF_MEMBER_DESC = YES
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+# If the REPEAT_BRIEF tag is set to YES (the default) Doxygen will prepend
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+# Note: if both HIDE_UNDOC_MEMBERS and BRIEF_MEMBER_DESC are set to NO, the
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+
+REPEAT_BRIEF = NO
+
+# If the ALWAYS_DETAILED_SEC and REPEAT_BRIEF tags are both set to YES then
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+# description.
+
+ALWAYS_DETAILED_SEC = NO
+
+# If the INLINE_INHERITED_MEMB tag is set to YES, doxygen will show all inherited
+# members of a class in the documentation of that class as if those members were
+# ordinary class members. Constructors, destructors and assignment operators of
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+INLINE_INHERITED_MEMB = NO
+
+# If the FULL_PATH_NAMES tag is set to YES then Doxygen will prepend the full
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+STRIP_FROM_PATH = "c:\project\pjproject"
+
+# The INTERNAL_DOCS tag determines if documentation
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+
+# If the SHORT_NAMES tag is set to YES, doxygen will generate much shorter
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+HIDE_SCOPE_NAMES = NO
+
+# If the VERBATIM_HEADERS tag is set to YES (the default) then Doxygen
+# will generate a verbatim copy of the header file for each class for
+# which an include is specified. Set to NO to disable this.
+
+VERBATIM_HEADERS = YES
+
+# If the SHOW_INCLUDE_FILES tag is set to YES (the default) then Doxygen
+# will put list of the files that are included by a file in the documentation
+# of that file.
+
+SHOW_INCLUDE_FILES = NO
+
+# If the JAVADOC_AUTOBRIEF tag is set to YES then Doxygen
+# will interpret the first line (until the first dot) of a JavaDoc-style
+# comment as the brief description. If set to NO, the JavaDoc
+# comments will behave just like the Qt-style comments (thus requiring an
+# explict @brief command for a brief description.
+
+JAVADOC_AUTOBRIEF = NO
+
+# The MULTILINE_CPP_IS_BRIEF tag can be set to YES to make Doxygen
+# treat a multi-line C++ special comment block (i.e. a block of //! or ///
+# comments) as a brief description. This used to be the default behaviour.
+# The new default is to treat a multi-line C++ comment block as a detailed
+# description. Set this tag to YES if you prefer the old behaviour instead.
+
+MULTILINE_CPP_IS_BRIEF = NO
+
+# If the DETAILS_AT_TOP tag is set to YES then Doxygen
+# will output the detailed description near the top, like JavaDoc.
+# If set to NO, the detailed description appears after the member
+# documentation.
+
+DETAILS_AT_TOP = YES
+
+# If the INHERIT_DOCS tag is set to YES (the default) then an undocumented
+# member inherits the documentation from any documented member that it
+# reimplements.
+
+INHERIT_DOCS = YES
+
+# If the INLINE_INFO tag is set to YES (the default) then a tag [inline]
+# is inserted in the documentation for inline members.
+
+INLINE_INFO = YES
+
+# If the SORT_MEMBER_DOCS tag is set to YES (the default) then doxygen
+# will sort the (detailed) documentation of file and class members
+# alphabetically by member name. If set to NO the members will appear in
+# declaration order.
+
+SORT_MEMBER_DOCS = YES
+
+# If member grouping is used in the documentation and the DISTRIBUTE_GROUP_DOC
+# tag is set to YES, then doxygen will reuse the documentation of the first
+# member in the group (if any) for the other members of the group. By default
+# all members of a group must be documented explicitly.
+
+DISTRIBUTE_GROUP_DOC = NO
+
+# The TAB_SIZE tag can be used to set the number of spaces in a tab.
+# Doxygen uses this value to replace tabs by spaces in code fragments.
+
+TAB_SIZE = 8
+
+# The GENERATE_TODOLIST tag can be used to enable (YES) or
+# disable (NO) the todo list. This list is created by putting \todo
+# commands in the documentation.
+
+GENERATE_TODOLIST = YES
+
+# The GENERATE_TESTLIST tag can be used to enable (YES) or
+# disable (NO) the test list. This list is created by putting \test
+# commands in the documentation.
+
+GENERATE_TESTLIST = YES
+
+# The GENERATE_BUGLIST tag can be used to enable (YES) or
+# disable (NO) the bug list. This list is created by putting \bug
+# commands in the documentation.
+
+GENERATE_BUGLIST = YES
+
+# The GENERATE_DEPRECATEDLIST tag can be used to enable (YES) or
+# disable (NO) the deprecated list. This list is created by putting
+# \deprecated commands in the documentation.
+
+GENERATE_DEPRECATEDLIST= YES
+
+# This tag can be used to specify a number of aliases that acts
+# as commands in the documentation. An alias has the form "name=value".
+# For example adding "sideeffect=\par Side Effects:\n" will allow you to
+# put the command \sideeffect (or @sideeffect) in the documentation, which
+# will result in a user defined paragraph with heading "Side Effects:".
+# You can put \n's in the value part of an alias to insert newlines.
+
+ALIASES =
+
+# The ENABLED_SECTIONS tag can be used to enable conditional
+# documentation sections, marked by \if sectionname ... \endif.
+
+ENABLED_SECTIONS =
+
+# The MAX_INITIALIZER_LINES tag determines the maximum number of lines
+# the initial value of a variable or define consist of for it to appear in
+# the documentation. If the initializer consists of more lines than specified
+# here it will be hidden. Use a value of 0 to hide initializers completely.
+# The appearance of the initializer of individual variables and defines in the
+# documentation can be controlled using \showinitializer or \hideinitializer
+# command in the documentation regardless of this setting.
+
+MAX_INITIALIZER_LINES = 30
+
+# Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C sources
+# only. Doxygen will then generate output that is more tailored for C.
+# For instance some of the names that are used will be different. The list
+# of all members will be omitted, etc.
+
+OPTIMIZE_OUTPUT_FOR_C = YES
+
+# Set the OPTIMIZE_OUTPUT_JAVA tag to YES if your project consists of Java sources
+# only. Doxygen will then generate output that is more tailored for Java.
+# For instance namespaces will be presented as packages, qualified scopes
+# will look different, etc.
+
+OPTIMIZE_OUTPUT_JAVA = NO
+
+# Set the SHOW_USED_FILES tag to NO to disable the list of files generated
+# at the bottom of the documentation of classes and structs. If set to YES the
+# list will mention the files that were used to generate the documentation.
+
+SHOW_USED_FILES = YES
+TYPEDEF_HIDES_STRUCT = YES
+
+#---------------------------------------------------------------------------
+# configuration options related to warning and progress messages
+#---------------------------------------------------------------------------
+
+# The QUIET tag can be used to turn on/off the messages that are generated
+# by doxygen. Possible values are YES and NO. If left blank NO is used.
+
+QUIET = NO
+
+# The WARNINGS tag can be used to turn on/off the warning messages that are
+# generated by doxygen. Possible values are YES and NO. If left blank
+# NO is used.
+
+WARNINGS = YES
+
+# If WARN_IF_UNDOCUMENTED is set to YES, then doxygen will generate warnings
+# for undocumented members. If EXTRACT_ALL is set to YES then this flag will
+# automatically be disabled.
+
+WARN_IF_UNDOCUMENTED = YES
+
+# If WARN_IF_DOC_ERROR is set to YES, doxygen will generate warnings for
+# potential errors in the documentation, such as not documenting some
+# parameters in a documented function, or documenting parameters that
+# don't exist or using markup commands wrongly.
+
+WARN_IF_DOC_ERROR = YES
+
+# The WARN_FORMAT tag determines the format of the warning messages that
+# doxygen can produce. The string should contain the $file, $line, and $text
+# tags, which will be replaced by the file and line number from which the
+# warning originated and the warning text.
+
+WARN_FORMAT = "$file:$line: $text"
+
+# The WARN_LOGFILE tag can be used to specify a file to which warning
+# and error messages should be written. If left blank the output is written
+# to stderr.
+
+WARN_LOGFILE =
+
+#---------------------------------------------------------------------------
+# configuration options related to the input files
+#---------------------------------------------------------------------------
+
+# The INPUT tag can be used to specify the files and/or directories that contain
+# documented source files. You may enter file names like "myfile.cpp" or
+# directories like "/usr/src/myproject". Separate the files or directories
+# with spaces.
+
+INPUT = docs include/pjnath
+
+# If the value of the INPUT tag contains directories, you can use the
+# FILE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp
+# and *.h) to filter out the source-files in the directories. If left
+# blank the following patterns are tested:
+# *.c *.cc *.cxx *.cpp *.c++ *.java *.ii *.ixx *.ipp *.i++ *.inl *.h *.hh *.hxx *.hpp
+# *.h++ *.idl *.odl
+
+FILE_PATTERNS = *.h *.c
+
+# The RECURSIVE tag can be used to turn specify whether or not subdirectories
+# should be searched for input files as well. Possible values are YES and NO.
+# If left blank NO is used.
+
+RECURSIVE = YES
+
+# The EXCLUDE tag can be used to specify files and/or directories that should
+# excluded from the INPUT source files. This way you can easily exclude a
+# subdirectory from a directory tree whose root is specified with the INPUT tag.
+
+EXCLUDE =
+
+# The EXCLUDE_SYMLINKS tag can be used select whether or not files or directories
+# that are symbolic links (a Unix filesystem feature) are excluded from the input.
+
+EXCLUDE_SYMLINKS = NO
+
+# If the value of the INPUT tag contains directories, you can use the
+# EXCLUDE_PATTERNS tag to specify one or more wildcard patterns to exclude
+# certain files from those directories.
+
+EXCLUDE_PATTERNS = "*_i.h" "*/compat/*"
+
+# The EXAMPLE_PATH tag can be used to specify one or more files or
+# directories that contain example code fragments that are included (see
+# the \include command).
+
+EXAMPLE_PATH = ../pjsip-apps/src/samples src/pjturn-client
+
+# If the value of the EXAMPLE_PATH tag contains directories, you can use the
+# EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp
+# and *.h) to filter out the source-files in the directories. If left
+# blank all files are included.
+
+EXAMPLE_PATTERNS =
+
+# If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be
+# searched for input files to be used with the \include or \dontinclude
+# commands irrespective of the value of the RECURSIVE tag.
+# Possible values are YES and NO. If left blank NO is used.
+
+EXAMPLE_RECURSIVE = YES
+
+# The IMAGE_PATH tag can be used to specify one or more files or
+# directories that contain image that are included in the documentation (see
+# the \image command).
+
+IMAGE_PATH = docs
+
+# The INPUT_FILTER tag can be used to specify a program that doxygen should
+# invoke to filter for each input file. Doxygen will invoke the filter program
+# by executing (via popen()) the command <filter> <input-file>, where <filter>
+# is the value of the INPUT_FILTER tag, and <input-file> is the name of an
+# input file. Doxygen will then use the output that the filter program writes
+# to standard output.
+
+INPUT_FILTER =
+
+# If the FILTER_SOURCE_FILES tag is set to YES, the input filter (if set using
+# INPUT_FILTER) will be used to filter the input files when producing source
+# files to browse (i.e. when SOURCE_BROWSER is set to YES).
+
+FILTER_SOURCE_FILES = NO
+
+#---------------------------------------------------------------------------
+# configuration options related to source browsing
+#---------------------------------------------------------------------------
+
+# If the SOURCE_BROWSER tag is set to YES then a list of source files will
+# be generated. Documented entities will be cross-referenced with these sources.
+
+SOURCE_BROWSER = NO
+
+# Setting the INLINE_SOURCES tag to YES will include the body
+# of functions and classes directly in the documentation.
+
+INLINE_SOURCES = NO
+
+# Setting the STRIP_CODE_COMMENTS tag to YES (the default) will instruct
+# doxygen to hide any special comment blocks from generated source code
+# fragments. Normal C and C++ comments will always remain visible.
+
+STRIP_CODE_COMMENTS = YES
+
+# If the REFERENCED_BY_RELATION tag is set to YES (the default)
+# then for each documented function all documented
+# functions referencing it will be listed.
+
+REFERENCED_BY_RELATION = YES
+
+# If the REFERENCES_RELATION tag is set to YES (the default)
+# then for each documented function all documented entities
+# called/used by that function will be listed.
+
+REFERENCES_RELATION = YES
+
+#---------------------------------------------------------------------------
+# configuration options related to the alphabetical class index
+#---------------------------------------------------------------------------
+
+# If the ALPHABETICAL_INDEX tag is set to YES, an alphabetical index
+# of all compounds will be generated. Enable this if the project
+# contains a lot of classes, structs, unions or interfaces.
+
+ALPHABETICAL_INDEX = NO
+
+# If the alphabetical index is enabled (see ALPHABETICAL_INDEX) then
+# the COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns
+# in which this list will be split (can be a number in the range [1..20])
+
+COLS_IN_ALPHA_INDEX = 5
+
+# In case all classes in a project start with a common prefix, all
+# classes will be put under the same header in the alphabetical index.
+# The IGNORE_PREFIX tag can be used to specify one or more prefixes that
+# should be ignored while generating the index headers.
+
+IGNORE_PREFIX =
+
+#---------------------------------------------------------------------------
+# configuration options related to the HTML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_HTML tag is set to YES (the default) Doxygen will
+# generate HTML output.
+
+GENERATE_HTML = YES
+
+# The HTML_OUTPUT tag is used to specify where the HTML docs will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be
+# put in front of it. If left blank `html' will be used as the default path.
+
+HTML_OUTPUT = html
+
+# The HTML_FILE_EXTENSION tag can be used to specify the file extension for
+# each generated HTML page (for example: .htm,.php,.asp). If it is left blank
+# doxygen will generate files with .html extension.
+
+HTML_FILE_EXTENSION = .htm
+
+# The HTML_HEADER tag can be used to specify a personal HTML header for
+# each generated HTML page. If it is left blank doxygen will generate a
+# standard header.
+
+HTML_HEADER = docs/header.html
+
+# The HTML_FOOTER tag can be used to specify a personal HTML footer for
+# each generated HTML page. If it is left blank doxygen will generate a
+# standard footer.
+
+HTML_FOOTER = docs/footer.html
+
+# The HTML_STYLESHEET tag can be used to specify a user defined cascading
+# style sheet that is used by each HTML page. It can be used to
+# fine-tune the look of the HTML output. If the tag is left blank doxygen
+# will generate a default style sheet
+
+HTML_STYLESHEET = docs/doxygen.css
+
+# If the HTML_ALIGN_MEMBERS tag is set to YES, the members of classes,
+# files or namespaces will be aligned in HTML using tables. If set to
+# NO a bullet list will be used.
+
+HTML_ALIGN_MEMBERS = YES
+
+# If the GENERATE_HTMLHELP tag is set to YES, additional index files
+# will be generated that can be used as input for tools like the
+# Microsoft HTML help workshop to generate a compressed HTML help file (.chm)
+# of the generated HTML documentation.
+
+GENERATE_HTMLHELP = NO
+
+# If the GENERATE_HTMLHELP tag is set to YES, the CHM_FILE tag can
+# be used to specify the file name of the resulting .chm file. You
+# can add a path in front of the file if the result should not be
+# written to the html output dir.
+
+CHM_FILE =
+
+# If the GENERATE_HTMLHELP tag is set to YES, the HHC_LOCATION tag can
+# be used to specify the location (absolute path including file name) of
+# the HTML help compiler (hhc.exe). If non empty doxygen will try to run
+# the html help compiler on the generated index.hhp.
+
+HHC_LOCATION =
+
+# If the GENERATE_HTMLHELP tag is set to YES, the GENERATE_CHI flag
+# controls if a separate .chi index file is generated (YES) or that
+# it should be included in the master .chm file (NO).
+
+GENERATE_CHI = NO
+
+# If the GENERATE_HTMLHELP tag is set to YES, the BINARY_TOC flag
+# controls whether a binary table of contents is generated (YES) or a
+# normal table of contents (NO) in the .chm file.
+
+BINARY_TOC = NO
+
+# The TOC_EXPAND flag can be set to YES to add extra items for group members
+# to the contents of the Html help documentation and to the tree view.
+
+TOC_EXPAND = NO
+
+# The DISABLE_INDEX tag can be used to turn on/off the condensed index at
+# top of each HTML page. The value NO (the default) enables the index and
+# the value YES disables it.
+
+DISABLE_INDEX = NO
+
+# This tag can be used to set the number of enum values (range [1..20])
+# that doxygen will group on one line in the generated HTML documentation.
+
+ENUM_VALUES_PER_LINE = 1
+
+# If the GENERATE_TREEVIEW tag is set to YES, a side panel will be
+# generated containing a tree-like index structure (just like the one that
+# is generated for HTML Help). For this to work a browser that supports
+# JavaScript, DHTML, CSS and frames is required (for instance Mozilla,
+# Netscape 6.0+, Internet explorer 5.0+, or Konqueror). Windows users are
+# probably better off using the HTML help feature.
+
+GENERATE_TREEVIEW = NO
+
+# If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be
+# used to set the initial width (in pixels) of the frame in which the tree
+# is shown.
+
+TREEVIEW_WIDTH = 250
+
+#---------------------------------------------------------------------------
+# configuration options related to the LaTeX output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_LATEX tag is set to YES (the default) Doxygen will
+# generate Latex output.
+
+GENERATE_LATEX = NO
+
+# The LATEX_OUTPUT tag is used to specify where the LaTeX docs will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be
+# put in front of it. If left blank `latex' will be used as the default path.
+
+LATEX_OUTPUT = latex
+
+# The LATEX_CMD_NAME tag can be used to specify the LaTeX command name to be
+# invoked. If left blank `latex' will be used as the default command name.
+
+LATEX_CMD_NAME = latex
+
+# The MAKEINDEX_CMD_NAME tag can be used to specify the command name to
+# generate index for LaTeX. If left blank `makeindex' will be used as the
+# default command name.
+
+MAKEINDEX_CMD_NAME = makeindex
+
+# If the COMPACT_LATEX tag is set to YES Doxygen generates more compact
+# LaTeX documents. This may be useful for small projects and may help to
+# save some trees in general.
+
+COMPACT_LATEX = NO
+
+# The PAPER_TYPE tag can be used to set the paper type that is used
+# by the printer. Possible values are: a4, a4wide, letter, legal and
+# executive. If left blank a4wide will be used.
+
+PAPER_TYPE = a4wide
+
+# The EXTRA_PACKAGES tag can be to specify one or more names of LaTeX
+# packages that should be included in the LaTeX output.
+
+EXTRA_PACKAGES =
+
+# The LATEX_HEADER tag can be used to specify a personal LaTeX header for
+# the generated latex document. The header should contain everything until
+# the first chapter. If it is left blank doxygen will generate a
+# standard header. Notice: only use this tag if you know what you are doing!
+
+LATEX_HEADER =
+
+# If the PDF_HYPERLINKS tag is set to YES, the LaTeX that is generated
+# is prepared for conversion to pdf (using ps2pdf). The pdf file will
+# contain links (just like the HTML output) instead of page references
+# This makes the output suitable for online browsing using a pdf viewer.
+
+PDF_HYPERLINKS = YES
+
+# If the USE_PDFLATEX tag is set to YES, pdflatex will be used instead of
+# plain latex in the generated Makefile. Set this option to YES to get a
+# higher quality PDF documentation.
+
+USE_PDFLATEX = YES
+
+# If the LATEX_BATCHMODE tag is set to YES, doxygen will add the \\batchmode.
+# command to the generated LaTeX files. This will instruct LaTeX to keep
+# running if errors occur, instead of asking the user for help.
+# This option is also used when generating formulas in HTML.
+
+LATEX_BATCHMODE = NO
+
+#---------------------------------------------------------------------------
+# configuration options related to the RTF output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_RTF tag is set to YES Doxygen will generate RTF output
+# The RTF output is optimised for Word 97 and may not look very pretty with
+# other RTF readers or editors.
+
+GENERATE_RTF = NO
+
+# The RTF_OUTPUT tag is used to specify where the RTF docs will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be
+# put in front of it. If left blank `rtf' will be used as the default path.
+
+RTF_OUTPUT = rtf
+
+# If the COMPACT_RTF tag is set to YES Doxygen generates more compact
+# RTF documents. This may be useful for small projects and may help to
+# save some trees in general.
+
+COMPACT_RTF = NO
+
+# If the RTF_HYPERLINKS tag is set to YES, the RTF that is generated
+# will contain hyperlink fields. The RTF file will
+# contain links (just like the HTML output) instead of page references.
+# This makes the output suitable for online browsing using WORD or other
+# programs which support those fields.
+# Note: wordpad (write) and others do not support links.
+
+RTF_HYPERLINKS = NO
+
+# Load stylesheet definitions from file. Syntax is similar to doxygen's
+# config file, i.e. a series of assigments. You only have to provide
+# replacements, missing definitions are set to their default value.
+
+RTF_STYLESHEET_FILE =
+
+# Set optional variables used in the generation of an rtf document.
+# Syntax is similar to doxygen's config file.
+
+RTF_EXTENSIONS_FILE =
+
+#---------------------------------------------------------------------------
+# configuration options related to the man page output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_MAN tag is set to YES (the default) Doxygen will
+# generate man pages
+
+GENERATE_MAN = NO
+
+# The MAN_OUTPUT tag is used to specify where the man pages will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be
+# put in front of it. If left blank `man' will be used as the default path.
+
+MAN_OUTPUT = man
+
+# The MAN_EXTENSION tag determines the extension that is added to
+# the generated man pages (default is the subroutine's section .3)
+
+MAN_EXTENSION = .3
+
+# If the MAN_LINKS tag is set to YES and Doxygen generates man output,
+# then it will generate one additional man file for each entity
+# documented in the real man page(s). These additional files
+# only source the real man page, but without them the man command
+# would be unable to find the correct page. The default is NO.
+
+MAN_LINKS = NO
+
+#---------------------------------------------------------------------------
+# configuration options related to the XML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_XML tag is set to YES Doxygen will
+# generate an XML file that captures the structure of
+# the code including all documentation. Note that this
+# feature is still experimental and incomplete at the
+# moment.
+
+GENERATE_XML = NO
+
+# The XML_SCHEMA tag can be used to specify an XML schema,
+# which can be used by a validating XML parser to check the
+# syntax of the XML files.
+
+XML_SCHEMA =
+
+# The XML_DTD tag can be used to specify an XML DTD,
+# which can be used by a validating XML parser to check the
+# syntax of the XML files.
+
+XML_DTD =
+
+#---------------------------------------------------------------------------
+# configuration options for the AutoGen Definitions output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_AUTOGEN_DEF tag is set to YES Doxygen will
+# generate an AutoGen Definitions (see autogen.sf.net) file
+# that captures the structure of the code including all
+# documentation. Note that this feature is still experimental
+# and incomplete at the moment.
+
+GENERATE_AUTOGEN_DEF = NO
+
+#---------------------------------------------------------------------------
+# configuration options related to the Perl module output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_PERLMOD tag is set to YES Doxygen will
+# generate a Perl module file that captures the structure of
+# the code including all documentation. Note that this
+# feature is still experimental and incomplete at the
+# moment.
+
+GENERATE_PERLMOD = NO
+
+# If the PERLMOD_LATEX tag is set to YES Doxygen will generate
+# the necessary Makefile rules, Perl scripts and LaTeX code to be able
+# to generate PDF and DVI output from the Perl module output.
+
+PERLMOD_LATEX = NO
+
+# If the PERLMOD_PRETTY tag is set to YES the Perl module output will be
+# nicely formatted so it can be parsed by a human reader. This is useful
+# if you want to understand what is going on. On the other hand, if this
+# tag is set to NO the size of the Perl module output will be much smaller
+# and Perl will parse it just the same.
+
+PERLMOD_PRETTY = YES
+
+# The names of the make variables in the generated doxyrules.make file
+# are prefixed with the string contained in PERLMOD_MAKEVAR_PREFIX.
+# This is useful so different doxyrules.make files included by the same
+# Makefile don't overwrite each other's variables.
+
+PERLMOD_MAKEVAR_PREFIX =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the preprocessor
+#---------------------------------------------------------------------------
+
+# If the ENABLE_PREPROCESSING tag is set to YES (the default) Doxygen will
+# evaluate all C-preprocessor directives found in the sources and include
+# files.
+
+ENABLE_PREPROCESSING = YES
+
+# If the MACRO_EXPANSION tag is set to YES Doxygen will expand all macro
+# names in the source code. If set to NO (the default) only conditional
+# compilation will be performed. Macro expansion can be done in a controlled
+# way by setting EXPAND_ONLY_PREDEF to YES.
+
+MACRO_EXPANSION = YES
+
+# If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES
+# then the macro expansion is limited to the macros specified with the
+# PREDEFINED and EXPAND_AS_PREDEFINED tags.
+
+EXPAND_ONLY_PREDEF = NO
+
+# If the SEARCH_INCLUDES tag is set to YES (the default) the includes files
+# in the INCLUDE_PATH (see below) will be search if a #include is found.
+
+SEARCH_INCLUDES = YES
+
+# The INCLUDE_PATH tag can be used to specify one or more directories that
+# contain include files that are not input files but should be processed by
+# the preprocessor.
+
+INCLUDE_PATH =
+
+# You can use the INCLUDE_FILE_PATTERNS tag to specify one or more wildcard
+# patterns (like *.h and *.hpp) to filter out the header-files in the
+# directories. If left blank, the patterns specified with FILE_PATTERNS will
+# be used.
+
+INCLUDE_FILE_PATTERNS =
+
+# The PREDEFINED tag can be used to specify one or more macro names that
+# are defined before the preprocessor is started (similar to the -D option of
+# gcc). The argument of the tag is a list of macros of the form: name
+# or name=definition (no spaces). If the definition and the = are
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diff --git a/pjnath/docs/footer.html b/pjnath/docs/footer.html
new file mode 100644
index 0000000..de9b1ec
--- /dev/null
+++ b/pjnath/docs/footer.html
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+ </TD></TD></TABLE>
+<p>&nbsp;</p>
+<hr><center>
+PJNATH - Open Source NAT traversal helper library supporting STUN, TURN, and ICE<br>
+Copyright (C) 2006-2009 Teluu Inc.
+</center>
+
+
+<!--#include virtual="/footer.html" -->
+
+</BODY>
+</HTML>
diff --git a/pjnath/docs/header.html b/pjnath/docs/header.html
new file mode 100644
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+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
+<html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1">
+<title>$title ($projectnumber)</title>
+<link href="/style/style.css" rel="stylesheet" type="text/css">
+</head><body>
+ <!--#include virtual="/header.html" -->
+ <TABLE border=0 width="90%"><TR><TD>
+ <p><A HREF="/">Home</A> --&gt; <A HREF="/docs.htm">Documentations</A> --&gt; <A HREF="/pjnath/docs/html/index.htm">PJNATH Reference</A></p>
+
+
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