[Freeswitch-users] uuid_send_dtmf problem with rfc2833

[Ítalo Rossi]

I also had this problem, a workaround is send any audio before sending the
dtmf, it'll work.

Does anyone know why this happen?

On Sat, Nov 22, 2014 at 7:42 PM, Adam Kuśmirek <amkusmirek at gmail.com> wrote:

> Hello,
>
> I have a problem with sending dtmf events (rfc2833) with uuid_send_dtmf
> api command.
>
> FreeSWITCH Version 1.5.15b+git~20141118T231404Z~df423b88d6~64bit (git
> df423b8 2014-11-18 23:14:04Z 64bit)
>
> First i originate the call and park it with the command:
>
> originate {origination_caller_id_name=test}sofia/gateway/test/
> xxxxxxxx at yyy.zzz.com &park()
>
> The other side answers the call. I can see that rfc 2833 is negotiated in
> SDPs.
>
>    SIP/2.0 200 Ok
>    Via: SIP/2.0/UDP 46.174.232.238:5070;rport;branch=z9hG4bKFmQvapcNNp44m
>    From: "..." <sip:... at ...>;tag=35FN6HXZ3ry2F
>    To: <sip:12122777254 at sip.12voip.com>;tag=f0313ac544a16a82aee0b
>    Contact: sip:... at ...:5060
>    Call-ID: f7b0d42d-ed32-1232-06a5-c03fd5651f3e
>    CSeq: 68010140 INVITE
>    Server: (Very nice Sip Registrar/Proxy Server)
>    Allow: ACK,BYE,CANCEL,INVITE,REGISTER,OPTIONS,INFO,MESSAGE
>    Content-Type: application/sdp
>    Content-Length: 211
>
>    v=0
>    o=xxx 1416695524 1416695524 IN IP4 yyyy
>    s=SIP Call
>    c=IN IP4 yyyy
>    t=0 0
>    m=audio 27792 RTP/AVP 8 101
>    a=rtpmap:8 PCMA/8000
>    a=rtpmap:101 telephone-event/8000
>    a=ptime:20
>
>
> Then I try to send DTMF
>
> freeswitch at internal> uuid_send_dtmf 6022b884-7297-11e4-8682-fd8246740d0e
> 12345
> -ERR no reply
>
> 2014-11-22 23:32:21.888589 [DEBUG] switch_core_io.c:1976 sofia/external/
> 12122777254 at sip.12voip.com send dtmf
> digit=1 ms=250 samples=2000
> 2014-11-22 23:32:21.888589 [DEBUG] switch_core_io.c:1976 sofia/external/
> 12122777254 at sip.12voip.com send dtmf
> digit=2 ms=250 samples=2000
> 2014-11-22 23:32:21.888589 [DEBUG] switch_core_io.c:1976 sofia/external/
> 12122777254 at sip.12voip.com send dtmf
> digit=3 ms=250 samples=2000
> 2014-11-22 23:32:21.888589 [DEBUG] switch_core_io.c:1976 sofia/external/
> 12122777254 at sip.12voip.com send dtmf
> digit=4 ms=250 samples=2000
> 2014-11-22 23:32:21.888589 [DEBUG] switch_core_io.c:1976 sofia/external/
> 12122777254 at sip.12voip.com send dtmf
> digit=5 ms=250 samples=2000
>
>
> Unfortunatelly it doesn't work and I can't see any rtpevents in wireshark.
>
> If I change dtmf-type in profile to info, i can see  sip info packets.
>
>
> Please help
>
>
>
>
>
>
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-- 
Ítalo Rossi
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