[cisco-voip] DTMF outbound Issue un CUBE

[Divin John (dijohn)]

Hey Alessandro,

What do mean by in band?

Inband RFC-2833/rtp-nte

Or

Inband PCM Audio (Raw tones in the G711 stream)

Do you have a debug ccsip mess from the CUBE?

Regards,
Divin

From:  Alessandro Bertacco <bertacco.alessandro at alice.it>
Date:  Saturday, 28 September 2013 5:22 PM
To:  "cisco-voip at puck.nether.net" <cisco-voip at puck.nether.net>
Subject:  [cisco-voip] DTMF outbound Issue un CUBE

Hi all,
  I've a problem with DTMF relay only on outbound direction in this topology
scenario:
 
SIP ISP <---SIP--->Cisco UBE ISR 2811 <--SIP---> Cisco UCM 8.6.X
<---SCCP---> IP Phone
 
I'm using codec g711 with the provider that tell me to use in-band DTMF.
 
SIP trunk in CUCM 8.6 configured as standard without MTP flag, outbound and
inbound calls works fine, but DTMF relay works only from SIP provider to
Cisco IP Phone.
 
 
>From inside, any DTMF tone are relayed to the SIP provider.
 
For example, call from SCCP Phone to my mobile phone, from mobile phone I
can't hear any DTMF composed to the SCCP phone, but DTMF composed from the
mobil ephone are recived to the internal SCCP phone.
 
This happen always the same in that two scenario:
Mobile phone ------> SIP ISP ---SIP--->Cisco UBE ISR 2811 --SIP---> Cisco
UCM 8.6.X ---SCCP---> IP Phone
IP Phone ---SCCP---> Cisco UCM 8.6.X ---SIP---Cisco UBE ISR 2811 ---SIP-->
SIP ISP ----> Mobile Phone
 
Can anyone help me?
 
Thank you very much
 
Regards
 
Alessandro Bertacco


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