[asterisk-dev] [Code Review] Fix double DTMF digits when 'dtmfmode=inband' and client sends both 'inband' and 'SIP INFO' packets

[opticron]

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branches/1.8/channels/chan_sip.c
<https://reviewboard.asterisk.org/r/2165/#comment14103>

    I would hesitate to make this a warning since some phones (like the Grandstream that prompted this fix) would produce warnings on the CLI during normal dialing operations.


- opticron


On Oct. 18, 2012, 1:13 p.m., Alec Davis wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://reviewboard.asterisk.org/r/2165/
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> 
> (Updated Oct. 18, 2012, 1:13 p.m.)
> 
> 
> Review request for Asterisk Developers.
> 
> 
> Summary
> -------
> 
> Asterisk 1.8.16.0
> 
> file:/var/log/asterisk/dtmf when only '2' was hit once
> [2012-10-17 19:46:17.879406] DTMF[17084] channel.c: DTMF begin '2' received on SIP/822-00000000
> [2012-10-17 19:46:17.879467] DTMF[17084] channel.c: DTMF begin ignored '2' on SIP/822-00000000
> [2012-10-17 19:46:17.950953] DTMF[17084] channel.c: DTMF end '2' received on SIP/822-00000000, duration 800 ms
> [2012-10-17 19:46:17.951004] DTMF[17084] channel.c: DTMF end passthrough '2' on SIP/822-00000000
> [2012-10-17 19:46:18.019135] DTMF[17084] channel.c: DTMF end '2' received on SIP/822-00000000, duration 51 ms
> [2012-10-17 19:46:18.019228] DTMF[17084] channel.c: DTMF end passthrough '2' on SIP/822-00000000
> 
> 
> In ASTERISK-20218 the attached file it can be seen that both PA2P.rtf has both 'inband' and 'SIP INFO' set. 
> 
> 
> This addresses bug ASTERISK-20218.
>     https://issues.asterisk.org/jira/browse/ASTERISK-20218
> 
> 
> Diffs
> -----
> 
>   branches/1.8/channels/chan_sip.c 375136 
> 
> Diff: https://reviewboard.asterisk.org/r/2165/diff
> 
> 
> Testing
> -------
> 
> Asterisk SVN-branch-1.8-r375111M
> 
> I was able to verify the same conditions on a Grandstream GXP2000.
> 
> Below is after proposed patch:
> 
> file:/var/log/asterisk/dtmf when '820' was entered
> 
> [2012-10-17 20:16:18.883821] DTMF[23460] channel.c: DTMF begin '8' received on SIP/822-00000004
> [2012-10-17 20:16:18.883868] DTMF[23460] channel.c: DTMF begin ignored '8' on SIP/822-00000004
> [2012-10-17 20:16:18.963537] DTMF[23460] channel.c: DTMF end '8' received on SIP/822-00000004, duration 89 ms
> [2012-10-17 20:16:18.963559] DTMF[23460] channel.c: DTMF end passthrough '8' on SIP/822-00000004
> [2012-10-17 20:16:19.263805] DTMF[23460] channel.c: DTMF begin '2' received on SIP/822-00000004
> [2012-10-17 20:16:19.263851] DTMF[23460] channel.c: DTMF begin ignored '2' on SIP/822-00000004
> [2012-10-17 20:16:19.363423] DTMF[23460] channel.c: DTMF end '2' received on SIP/822-00000004, duration 89 ms
> [2012-10-17 20:16:19.363444] DTMF[23460] channel.c: DTMF end passthrough '2' on SIP/822-00000004
> [2012-10-17 20:16:19.643830] DTMF[23460] channel.c: DTMF begin '0' received on SIP/822-00000004
> [2012-10-17 20:16:19.643876] DTMF[23460] channel.c: DTMF begin ignored '0' on SIP/822-00000004
> [2012-10-17 20:16:19.783561] DTMF[23460] channel.c: DTMF end '0' received on SIP/822-00000004, duration 140 ms
> [2012-10-17 20:16:19.783582] DTMF[23460] channel.c: DTMF end passthrough '0' on SIP/822-00000004
> 
> 
> Console:
> 
>     -- Executing [s at voicemail-main:2] VoiceMailMain("SIP/822-00000004", "") in new stack
>     -- <SIP/822-00000004> Playing 'vm-login.gsm' (language 'en')
> [2012-10-17 20:16:18.935436] WARNING[23399]: chan_sip.c:19239 handle_request_info: Ignoring DTMF_INFO message as DTMF_INBAND is set on channel SIP/822-00000004
> [2012-10-17 20:16:19.325618] WARNING[23399]: chan_sip.c:19239 handle_request_info: Ignoring DTMF_INFO message as DTMF_INBAND is set on channel SIP/822-00000004
> [2012-10-17 20:16:19.734910] WARNING[23399]: chan_sip.c:19239 handle_request_info: Ignoring DTMF_INFO message as DTMF_INBAND is set on channel SIP/822-00000004
>     -- <SIP/822-00000004> Playing 'vm-password.gsm' (language 'en')
> asterix*CLI>
> 
> 
> Thanks,
> 
> Alec
> 
>

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