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chan_pjsip: add a flag to ignore 183 responses if no SDP present

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chan_sip will always ignore 183 responses that do not contain SDP
however, chan_pjsip will currently always translate it into a
183 with SDP.  This new flag allows chan_pjsip to have the same
behavior as chan_sip.

ASTERISK-28322 #close

Change-Id: If81cfaa17c11b6ac703e3d71696f259d86c6be4a
This commit is contained in:
Torrey Searle
2019-03-04 08:50:18 +01:00
committed by Sean Bright
parent 5f6890a8f9
commit 4661c08549
7 changed files with 75 additions and 1 deletions
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10
res/res_pjsip.c
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@@ -1127,6 +1127,16 @@
option allows the 'Q.850' Reason header to be suppressed.</para>
</description>
</configOption>
<configOption name="ignore_183_without_sdp" default="no">
<synopsis>Do not forward 183 when it doesn't contain SDP</synopsis>
<description><para>
Certain SS7 internetworking scenarios can result in a 183
to be generated for reasons other than early media. Forwarding
this 183 can cause loss of ringback tone. This flag emulates
the behavior of chan_sip and prevents these 183 responses from
being forwarded.</para>
</description>
</configOption>
</configObject>
<configObject name="auth">
<synopsis>Authentication type</synopsis>