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Merge "res_pjsip_session: Add ability to accept multiple sdp answers"

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2018-06-28 06:34:22 -05:00
committed by Gerrit Code Review
parent f248345a89 880fbff6b7
commit 84bb8586fd
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@@ -145,6 +145,30 @@ app_confbridge
ConfbridgeWelcome has been added that will send a list of all
current participants to a new participant.
res_pjsip
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* Two new options have been added to the system and endpoint objects to
control whether, on outbound calls, Asterisk will accept updated SDP answers
during the initial INVITE transaction when 100rel is not in effect.
This usually happens when the INVITE is forked to multiple UASs and more
than one sends an SDP answer or when a single UAS needs to change a media
port to switch from custom ringback to the actual media destination.
The 'follow_early_media_forked' option sets whether Asterisk will accept
the updated SDP when the To tag on the subsequent response is different than
that on the the previous response. This usually occurs in the forked INVITE
scenario. The default value is "yes" which is the current behavior.
The 'accept_multiple_sdp_answers' flag sets whether Asterisk will accept the
updated SDP when the To tag on the subsequent response is the same as that
on the previous response. This can occur when a UAS needs to switch media
ports from custom ringback to the final media path. The default value is
"no" which is the current behavior.
These options have to be enabled system-wide in the system config section
of pjsip.conf as well as on individual endpoints that require the
functionality.
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--- Functionality changes from Asterisk 15.3.0 to Asterisk 15.4.0 ------------
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