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

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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: https://origsvn.digium.com/svn/asterisk/trunk@165180 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Matthew Nicholson
2008-12-17 18:49:12 +00:00
parent 0ab0896516
commit 91192e30c5
3 changed files with 34 additions and 6 deletions
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10
configs/sip.conf.sample
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@@ -589,6 +589,15 @@ srvlookup=yes ; Enable DNS SRV lookups on outbound calls
; instead of INVITE. This can be combined with 'nonat', as
; 'canreinvite=update,nonat'. It implies 'yes'.
;ignoresdpversion=yes ; By default, Asterisk will honor the session version
; number in SDP packets and will only modify the SDP
; session if the version number changes. This option will
; force asterisk to ignore the SDP session version number
; and treat all SDP data as new data. This is required
; for devices that send us non standard SDP packets
; (observed with Microsoft OCS). By default this option is
; off.
;----------------------------------------- REALTIME SUPPORT ------------------------
; For additional information on ARA, the Asterisk Realtime Architecture,
; please read realtime.txt and extconfig.txt in the /doc directory of the
@@ -763,6 +772,7 @@ srvlookup=yes ; Enable DNS SRV lookups on outbound calls
; allowoverlap
; allowsubscribe
; allowtransfer
; ignoresdpversion
; subscribecontext
; template
; videosupport