Restore SIP DTMF overlap dialing method.

The recent fix for ASTERISK-17288 to get RFC3578 SIP overlap support
working correctly removed a long standing ability to do overlap dialing
using DTMF in the early media phase of a call.

See ASTERISK-18702 it has a very good description of the issue.

I started with Pavel Troller's chan_sip.diff patch on issue
ASTERISK-18702.

* Added 'dtmf' enum value to sip.conf allowoverlap config option.  The new
option value causes the Incomplte application to not send anything with
chan_sip so the caller can supply more digits via DTMF.

* Renames SIP_GET_DEST_PICKUP_EXTEN_FOUND to SIP_GET_DEST_EXTEN_MATCHMORE
since that is what it really means.

* Fixed get_destination() inconsistency with the pickup extension
matching.

* Fixed initialization of PAGE3 of global_flags in reload_config().

(closes issue ASTERISK-18702)
Reported by: Pavel Troller

Review: https://reviewboard.asterisk.org/r/1517/

Review: https://reviewboard.asterisk.org/r/1582/
........

Merged revisions 345273 from http://svn.asterisk.org/svn/asterisk/branches/1.8
........

Merged revisions 345275 from http://svn.asterisk.org/svn/asterisk/branches/10


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@345276 65c4cc65-6c06-0410-ace0-fbb531ad65f3

1 files changed, 18 insertions, 5 deletions

diff --git a/UPGRADE-1.8.txt b/UPGRADE-1.8.txt
index 75efabe7f..45edd0344 100644
--- a/UPGRADE-1.8.txt
+++ b/UPGRADE-1.8.txt
@@ -20,6 +20,10 @@
 
 From 1.6.2 to 1.8:
 
+* chan_sip no longer sets HASH(SIP_CAUSE,<chan name>) on channels by default.
+  This must now be enabled by setting 'sipstorecause' to 'yes' in sip.conf.
+  This carries a performance penalty.
+
 * Asterisk now requires libpri 1.4.11+ for PRI support.
 
 * A couple of CLI commands in res_ais were changed back to their original form:
@@ -92,8 +96,8 @@ From 1.6.2 to 1.8:
 * ExternalIVR will now send Z events for invalid or missing files, T events
   now include the interrupted file and bugs in argument parsing have been
   fixed so there may be arguments specified in incorrect ways that were
-  working that will no longer work.
-  Please see doc/externalivr.txt for details.
+  working that will no longer work. Please see 
+  https://wiki.asterisk.org/wiki/display/AST/External+IVR+Interface for details.
 
 * OSP lookup application changes following variable names:
   OSPPEERIP to OSPINPEERIP
@@ -155,6 +159,13 @@ From 1.6.2 to 1.8:
   changes to the files will not be detected.  You can revert to polling the
   directory by specifying --without-inotify to configure before compiling.
 
+* The 'sipusers' realtime table has been removed completely. Use the 'sippeers'
+  table with type 'user' for user type objects.
+
+* The sip.conf allowoverlap option now accepts 'dtmf' as a value.  If you
+  are using the early media DTMF overlap dialing method you now need to set
+  allowoverlap=dtmf.
+
 From 1.6.1 to 1.6.2:
 
 * SIP no longer sends the 183 progress message for early media by
@@ -250,6 +261,11 @@ From 1.6.1 to 1.6.2:
 * The cdr.conf file must exist and be configured correctly in order for CDR
   records to be written.
 
+* cdr_pgsql now assumes the encoding of strings it is handed are in LATIN9,
+  which should cover most uses of the extended ASCII set.  If your strings
+  use a different encoding in Asterisk, the "encoding" parameter may be set
+  to specify the correct character set.
+
 From 1.6.0.1 to 1.6.1:
 
 * The ast_agi_register_multiple() and ast_agi_unregister_multiple()
@@ -311,6 +327,3 @@ From 1.6.0.x to 1.6.1:
   which should be a char(8) or larger.  This field specifies whether or not a
   message has been designated to be "Urgent", "PRIORITY", or not.
 
-* The 'sipusers' realtime table has been removed completely. Use the 'sippeers'
-  table with type 'user' for user type objects.
-