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res_pjsip: Add rtp_keepalive endpoint option.

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This adds an "rtp_keepalive" option for PJSIP endpoints. Similar to the
chan_sip option, this specifies an interval, in seconds, at which we
will send RTP comfort noise frames. This can be useful for keeping RTP
sessions alive as well as keeping NAT associations alive during lulls.

ASTERISK-25242 #close
Reported by Mark Michelson

Change-Id: I06660ba672c0a343814af4cec838e6025cafd54b
This commit is contained in:
Mark Michelson
2015-07-09 14:17:53 -05:00
parent 34207887e6
commit d9094ddd73
11 changed files with 122 additions and 1 deletions
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8
res/res_pjsip.c
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@@ -787,6 +787,14 @@
have this accountcode set on it.
</para></description>
</configOption>
<configOption name="rtp_keepalive">
<synopsis>Number of seconds between RTP comfort noise keepalive packets.</synopsis>
<description><para>
At the specified interval, Asterisk will send an RTP comfort noise frame. This may
be useful for situations where Asterisk is behind a NAT or firewall and must keep a
hole open in order to allow for media to arrive at Asterisk.
</para></description>
</configOption>
</configObject>
<configObject name="auth">
<synopsis>Authentication type</synopsis>