[SIPForum-discussion] DTMF not working

[phani kumar]

Hi,

DTMF not working, After looking at the SDP i see payload missing in
originating device. Is the DTMF not working because of not having payload on
the originating device ?

*Originating device: SDP info*

m=audio 18998 RTP/AVP 18

a=rtpmap:18 G729/8000

a=fmtp:18 annexb=no

a=sqn: 0

a=cdsc: 1 image udptl t38


*Destination device SDP info*


m=audio 17058 RTP/AVP 18 101

a=rtpmap:18 G729/8000

a=rtpmap:101 telephone-event/8000

a=fmtp:18 annexb=no

a=fmtp:101 0-15

a=ptime:10

Thanks,
Phani kanuri
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