chan_dahdi: Adds support for major update to libss7.

* SS7 support now requires libss7 v2.0 or later.  The new libss7 is not
backwards compatible.

* Added SS7 support for connected line and redirecting.

* Most SS7 CLI commands are reworked as well as new SS7 commands added.
See online CLI help.

* Added several SS7 config option parameters described in
chan_dahdi.conf.sample.

* ISUP timer support reworked and now requires explicit configuration.
See ss7.timers.sample.

Special thanks to Kaloyan Kovachev for his support and persistence in
getting the original patch by adomjan updated and ready for release.

SS7-27 #close
Reported by: adomjan


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@416416 65c4cc65-6c06-0410-ace0-fbb531ad65f3

2 files changed, 114 insertions, 2 deletions

diff --git a/configs/chan_dahdi.conf.sample b/configs/chan_dahdi.conf.sample
index 83701ef00..2c0488aec 100644
--- a/configs/chan_dahdi.conf.sample
+++ b/configs/chan_dahdi.conf.sample
@@ -1371,12 +1371,35 @@ pickupgroup=1
 
 ; This option is used to disable automatic sending of ACM when the call is started
 ; in the dialplan.  If you do use this option, you will need to use the Proceeding()
-; application in the dialplan to send ACM.
-;ss7_explictacm=yes
+; application in the dialplan to send ACM or enable ss7_autoacm below.
+;ss7_explicitacm=yes
+
+; Use this option to automatically send ACM when the call rings or is answered and
+; has not seen proceeding yet. If you use this option, you should disable ss7_explicitacm.
+; You may still use Proceeding() to explicitly send an ACM from the dialplan.
+;ss7_autoacm=yes
+
+; Create the linkset with all CICs in hardware remotely blocked state.
+;ss7_initialhwblo=yes
+
+; This option is whether or not to trust the remote echo control indication.  This means
+; that in cases where echo control is reported by the remote end, we will trust them and
+; not enable echo cancellation on the call.
+;ss7_use_echocontrol=yes
+
+; This option is to set what our echo control indication is to the other end.  Set to
+; yes to indicate that we are using echo cancellation or no if we are not.
+;ss7_default_echocontrol=yes
 
 ; All settings apply to linkset 1
 ;linkset = 1
 
+; Set the Signaling Link Code (SLC) for each sigchan.
+; If you manually set any you need to manually set all.
+; Should be defined before sigchan.
+; The default SLC starts with zero and increases for each defined sigchan.
+;slc=
+
 ; Point code of the linkset.  For ITU, this is the decimal number
 ; format of the point code.  For ANSI, this can either be in decimal
 ; number format or in the xxx-xxx-xxx format
@@ -1410,6 +1433,30 @@ pickupgroup=1
 ; Channels to associate with CICs on this linkset
 ;channel = 25-47
 ;
+
+; Set this option if you wish to send an Information Request Message (INR) request
+; if no calling party number is specified. This will attempt to tell the other end
+; to send it anyways. Should be defined after sigchan.
+;inr_if_no_calling=yes
+
+; Set this to set whether or not the originating access is (non) ISDN in the forward and
+; backward call indicators. Should be defined after sigchan
+;non_isdn_access=yes
+
+; This sets the number of binary places to shift the CIC when doing load balancing between
+; sigchans on a linkset. Should be defined after sigchan. Default 0
+;sls_shift = 0
+
+; Send custom cause_location value
+; Should be defined after sigchan. Default 1 (private local)
+;cause_location=1
+
+; SS7 timers (ISUP and MTP3) should be explicitly defined for each linkset to be used.
+; For a full list of supported timers and their default values (applicable for both ITU
+; and ANSI) see ss7.timers
+; Should be defined after sigchan
+;#include ss7.timers
+
 ; For more information on setting up SS7, see the README file in libss7 or
 ; https://wiki.asterisk.org/wiki/display/AST/Signaling+System+Number+7
 ; ----------------- SS7 Options ----------------------------------------
diff --git a/configs/ss7.timers.sample b/configs/ss7.timers.sample
new file mode 100644
index 000000000..9cf9bd1ab
--- /dev/null
+++ b/configs/ss7.timers.sample
@@ -0,0 +1,65 @@
+;;;;;	ITU-T Q.707 timers
+
+;mtp3_timer.q707_t1 = 4000
+;mtp3_timer.q707_t2 = 30000
+
+;;;;;	MTP3 timers as specified in ITU-T Q.704 or ANSI T1.111-2001
+
+mtp3_timer.t1 = 500
+mtp3_timer.t2 = 700
+mtp3_timer.t3 = 500
+mtp3_timer.t4 = 500
+mtp3_timer.t5 = 500
+mtp3_timer.t6 = 500
+mtp3_timer.t7 = 1000
+
+mtp3_timer.t10 = 60000
+
+mtp3_timer.t12 = 800
+mtp3_timer.t13 = 800
+mtp3_timer.t14 = 2000
+
+;	enable for ITU only. Timers after T17 are defined differently for ANSI
+;mtp3_timer.t19 = 67000
+;mtp3_timer.t21 = 63000
+;
+;mtp3_timer.t22 = 300000
+;mtp3_timer.t23 = 300000
+
+
+;;;;;	ISUP timers as specified in ITU-T Q.764 or ANSI T1.113-2000
+
+isup_timer.t1 = 15000
+;isup_timer.t2 = 180000		; ITU only
+
+;isup_timer.t5 = 300000		; for ITU
+;isup_timer.t5 = 60000		; for ANSI
+isup_timer.t6 = 30000
+isup_timer.t7 = 20000
+isup_timer.t8 = 10000
+
+;isup_timer.t10 = 4000		; ITU only
+
+isup_timer.t12 = 15000
+;isup_timer.t13 = 300000	; for ITU
+;isup_timer.t13 = 60000		; for ANSI
+isup_timer.t14 = 15000
+;isup_timer.t15 = 300000	; for ITU
+;isup_timer.t15 = 60000		; for ANSI
+isup_timer.t16 = 15000
+;isup_timer.t17 = 300000	; for ITU
+;isup_timer.t17 = 60000		; for ANSI
+isup_timer.t18 = 15000
+;isup_timer.t19 = 300000	; for ITU
+;isup_timer.t19 = 60000		; for ANSI
+isup_timer.t20 = 15000
+;isup_timer.t21 = 300000	; for ITU
+;isup_timer.t21 = 60000		; for ANSI
+isup_timer.t22 = 15000
+;isup_timer.t23 = 300000	; for ITU
+;isup_timer.t23 = 60000		; for ANSI
+
+isup_timer.t27 = 240000
+
+isup_timer.t33 = 12000
+;isup_timer.t35 = 15000		; ITU only