[Freeswitch-users] Freetdm bridge to SIP DTMF problem

Jakub Ouhrabka jakub.ouhrabka at gmail.com
Fri Aug 19 02:29:31 MSD 2011


Hi,

 > I also had an incoming PRI DTMF not working issue using Freeswitch
 > with Freetdm and libsng_isdn in July. [...]

Robert: thank you for the info.

I upgraded to latest FreeSWITCH Version 1.0.head (git-92d2999 2011-08-18 
16-00-19 -0400) with libpri 1.4.12 and latest wanpipe (3.5.20) but the 
problem still persists.

Anyone has any suggestions how to debug the issue, please?

Any help would be greatly appreciated!

Best regards,

Jakub

Dne 18.8.2011 18:47, Robert Hadley napsal(a):
> Hi,
>
> I also had an incoming PRI DTMF not working issue using Freeswitch with Freetdm and libsng_isdn in July.  I demonstrated this issue to Sangoma.  The problem was resolved in a FS update I pulled July 26th.
>
> Regards,
> Robert
>
>
> -----Original Message-----
> From: Jakub Ouhrabka [mailto:jakub.ouhrabka at gmail.com]
> Sent: Thursday, August 18, 2011 5:54 AM
> To: freeswitch-users at lists.freeswitch.org
> Subject: Re: [Freeswitch-users] Freetdm bridge to SIP DTMF problem
>
> Hi,
>
> I've tried further: both dtmf-type info and rfc2833 are not working (can't see it in packet dump). Only dtmf-type set to "none" together with start_dtmf_generate is working as expected for me - dtmf is generated inband.
>
> How to force freeswitch to forward dtmf from freetdm to sofia preferably using rfc2833?
>
> Thank you for any hints,
>
> Jakub
>
> Dne 18.8.2011 12:51, Jakub Ouhrabka napsal(a):
>> Hi,
>>
>> we've changed OpenZAP to FreeTDM sometime ago and from that time we're
>> experiencing problems with DTMF.
>>
>> We're bridging incoming ISDN30 calls from Sangoma A108DE card + libri
>> + FreeTDM to SIP outgoing calls. Freeswitch is recognizing DTMF
>> correctly but DTMF is not send to outgoing SIP call - it's not present
>> in RTP stream trace (we've setup RFC2833 DTMF signalling). When
>> bridging the call back to ISDN30 DTMF works correctly.
>>
>> We're using latest versions of all software as of 1 month ago.
>>
>> Below are attached two snippets of logs: first is bridging back to
>> ISDN30 where DTMF is sent to called party. Second is bridging to SIP
>> where DTMF is not sent to the called party.
>>
>> We've tried it with both<action application="start_dtmf" />  on and
>> off with no success.
>>
>> Any pointers how to investigate the issue?
>>
>> Thanks,
>>
>> Jakub
>>
>> Log snippets:
>>
>> ISDN30 to ISDN30 bridge - DTMF ok
>>
>> 2011-08-18 12:31:45.950158 [DEBUG] ftmod_wanpipe.c:1545 [s1c11][1:11]
>> read wanpipe event 3
>> 2011-08-18 12:31:45.950158 [DEBUG] ftmod_wanpipe.c:1415 [s1c11][1:11]
>> Queuing wanpipe DTMF: 5
>> 2011-08-18 12:31:45.950158 [DEBUG] ftdm_io.c:3504 [s1c11][1:11]
>> Queuing DTMF 5 (debug = 0)
>> 2011-08-18 12:31:45.950158 [DEBUG] mod_freetdm.c:733 Queuing DTMF [5]
>> in channel FreeTDM/1:11/XXXXXXXXX
>> 2011-08-18 12:31:45.970623 [DEBUG] switch_ivr_bridge.c:391 Send signal
>> FreeTDM/1:5/XXXXXXXXX [BREAK]
>> 2011-08-18 12:31:45.991084 [DEBUG] ftdm_io.c:3694 [s1c5][1:5]
>> Generating DTMF [5]
>>
>> ISDN30 to SIP bridge - DTMF not forwarded
>>
>> 2011-08-18 12:34:05.287480 [DEBUG] ftmod_wanpipe.c:1545 [s1c29][1:29]
>> read wanpipe event 3
>> 2011-08-18 12:34:05.607708 [DEBUG] ftmod_wanpipe.c:1545 [s1c29][1:29]
>> read wanpipe event 3
>> 2011-08-18 12:34:05.607708 [DEBUG] ftmod_wanpipe.c:1415 [s1c29][1:29]
>> Queuing wanpipe DTMF: 6
>> 2011-08-18 12:34:05.607708 [DEBUG] ftdm_io.c:3504 [s1c29][1:29]
>> Queuing DTMF 6 (debug = 0)
>> 2011-08-18 12:34:05.607708 [DEBUG] ftmod_libpri.c:1586 -- Caught Event
>> span 1 18 (KEYPAD_DIGIT)
>> 2011-08-18 12:34:05.628171 [DEBUG] mod_freetdm.c:733 Queuing DTMF [6]
>> in channel FreeTDM/1:29/XXXXXXXXXXXXXXX
>> 2011-08-18 12:34:05.628171 [DEBUG] switch_ivr_bridge.c:391 Send signal
>> sofia/external/XXXXXXX at XXXXXXX:5060 [BREAK]
>>
>
>
>
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