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res_pjsip: Add DTMF INFO Failback mode

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The existing auto dtmf mode reverts to inband if 4733 fails to be
negotiated.  This patch adds a new mode auto_info which will
switch to INFO instead of inband if 4733 is not available.

ASTERISK-27066 #close

Change-Id: Id185b11e84afd9191a2f269e8443019047765e91
This commit is contained in:
Torrey Searle
2017-06-15 10:12:41 +02:00
parent 764d04fa87
commit 9fbc34d2bd
7 changed files with 121 additions and 18 deletions
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2
include/asterisk/res_pjsip.h
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@@ -363,6 +363,8 @@ enum ast_sip_dtmf_mode {
AST_SIP_DTMF_INFO,
/*! Use SIP 4733 if supported by the other side or INBAND if not */
AST_SIP_DTMF_AUTO,
/*! Use SIP 4733 if supported by the other side or INFO DTMF (blech) if not */
AST_SIP_DTMF_AUTO_INFO,
};
/*!