[Freeswitch-users] DTMF not comming through on some calls

[Andy]

Apologies. The freeswitch software is receiving incoming calls from a voip
gateway. I'm using voiptalk in the UK. 

The DTMF method was efault which I believe is "info" but I've now set it
explicitly to rfc2833 inband to see if that helps. Is there a way I can tell
from the logs that this is the case and that my config changes have worked.

Most of the phones are mobiles but some landlines as well.

I've done a detailed analysis of the logs and the calls that don't work are
missing what appear to be critical actions in the debug. Namely:

2009-05-15 09:47:45 [DEBUG] sofia_glue.c:2734 sofia_glue_negotiate_sdp() Set
2833 dtmf payload to 101

And then a little later in the call....

2009-05-15 09:47:45 [DEBUG] sofia_glue.c:2734 sofia_glue_negotiate_sdp() Set
2833 dtmf payload to 101
2009-05-15 09:47:45 [DEBUG] sofia_glue.c:2120 sofia_glue_activate_rtp()
Audio params changed for sofia/external/07540526194 at 194.145.190.143 from
194.145.190.143:11780 to 87.238.72.155:16968
2009-05-15 09:47:45 [DEBUG] sofia_glue.c:2127 sofia_glue_activate_rtp()
AUDIO RTP [sofia/external/07540526194 at 194.145.190.143] 77.86.49.249 port
21054 -> 87.238.72.155 port 16968 codec: 8 ms: 20
2009-05-15 09:47:45 [DEBUG] sofia_glue.c:2146 sofia_glue_activate_rtp()
AUDIO RTP CHANGING DEST TO: [87.238.72.155:16968]
2009-05-15 09:47:45 [DEBUG] sofia.c:3241 sofia_handle_sip_i_state()
Processing Reinvite
2009-05-15 09:47:45 [DEBUG] sofia.c:2885 sofia_handle_sip_i_state() Channel
sofia/external/07540526194 at 194.145.190.143 entering state [completed][200]
2009-05-15 09:47:45 [DEBUG] sofia.c:2885 sofia_handle_sip_i_state() Channel
sofia/external/07540526194 at 194.145.190.143 entering state [ready][200]

These lines appear for calls that work and not when they don't.

Hope that helps.
Cheers Andy

-----Original Message-----
From: freeswitch-users-bounces at lists.freeswitch.org
[mailto:freeswitch-users-bounces at lists.freeswitch.org] On Behalf Of Jason
White
Sent: 15 May 2009 08:47
To: freeswitch-users at lists.freeswitch.org
Subject: Re: [Freeswitch-users] DTMF not comming through on some calls

Andy <andy at fabulous4.co.uk> wrote:
> It's not that digits get dropped some calls semm to handle dtmf 
> perfectly and others don't seem to get dtmf at all.
>  
> Can anyone shed any light opn this or suggest any solutions?

I can't help, but you could make it a lot easier for others to help you by
including the necessary information with your question.

For example, what DTMF method is configured in the SIP profiles - RFC2833 or
Info, or are you using inband DTMF detection?

What are the phones, and how are they connected to your FreeSWITCH system?

What relevant information appears in your FreeSWITCH logs? For example, when
debug-level logging is enabled, you should see log entries related to the
DTMF detection. Check whether there are differences between the calls that
work and those which don't.

If it appears to be a bug, test whether you can reproduce it with the latest
code taken from svn trunk.


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