This patch adds a new 'ignoresdpversion' option to sip.conf. When this is

enabled (either globally or for a specific peer), chan_sip will treat any SDP
data it receives as new data and update the media stream accordingly.  By
default, Asterisk will only modify the media stream if the SDP session version
received is different from the current SDP session version.  This option is
required to interoperate with devices that have non-standard SDP session
version implementations (observed by toc on the bug tracker with Microsoft OCS
which always uses 0 as the session version).

http://reviewboard.digium.com/r/94/
(closes issue #13958)
Reported by: toc
Tested by: toc


git-svn-id: http://svn.digium.com/svn/asterisk/trunk@165180 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 8 insertions, 0 deletions

diff --git a/CHANGES b/CHANGES
index c2fd95a33..d7c1c904e 100644
--- a/CHANGES
+++ b/CHANGES
@@ -33,6 +33,14 @@ SIP Changes
  * Added two new configuration options, "qualifygap" and "qualifypeers", which allow
    finer control over how many peers Asterisk will qualify and the gap between them
    when all peers need to be qualified at the same time.
+ * Added a new 'ignoresdpversion' option to sip.conf.  When this is enabled
+   (either globally or for a specific peer), chan_sip will treat any SDP data
+   it receives as new data and update the media stream accordingly.  By
+   default, Asterisk will only modify the media stream if the SDP session
+   version received is different from the current SDP session version.  This
+   option is required to interoperate with devices that have non-standard SDP
+   session version implementations (observed with Microsoft OCS).  This option
+   is diabled by default.
 
 Skinny Changes
 --------------