[Asterisk-Users] Cisco DTMF Issue

[Andrey S Pankov]

http://www.cisco.com/en/US/customer/products/sw/iosswrel/ps1839/products_feature_guide09186a0080087edb.html

Andrey.

> We're having an issue with connecting a Cisco ITS installation to * such
> that DTMF tones are passed to *.  DTMF tones aren't passed to voicemail or
> to any of the interfaces behind *.
>
> On the Cisco Side:
>
> dial-peer voice 8 voip
>  destination-pattern 9999$
>  session protocol sipv2
>  session target ipv4:172.16.1.249
>  session transport udp
>  dtmf-relay rtp-nte
>  codec g711ulaw
>  no vad
>
> We have also tried using rtp payload-type nte to adjust the nte port value
> to 101 versus 100.  SIP Notify doesn't work, cisco-rtp doesn't work.  I
> have tried every possible dtmfmode= option [inband, rfc2833, or info]
> within this SIP device.  Toggling session transport udp, no vad, and the
> codecs seem to be no use.  I'm frustrated and puzzled.  If anyone can
> provide some guidance, I'd be very grateful!  We're trying to get this up
> and running this morning.
>
> Josh