[SIPForum-discussion] dtmf issue on the sip trunk !!

[Phillip Lewis]

What about the Allow field in the SIP Header. INFO may have been included,
could SIP INFO have been resolved.?

On Mon, Jun 18, 2012 at 11:45 AM, Aniella Juverdeanu <
Aniella.Juverdeanu at telus.com> wrote:

> Hi,****
>
> ** **
>
> To me it looks negotiated ok with CODEC G711and RFC 2833/4733 for DTMF
> events 0-15. ****
>
> I didn’t see until now 77 and 84 used but if not accepted by the other end
> it means not supported – but the call should continue with standard events
> 0-15.****
>
> ** **
>
> More details you may find in RFC 2833/4733.****
>
> ** **
>
> Aniella ****
>
> ** **
>
> *From:* discussion-bounces at sipforum.org [mailto:
> discussion-bounces at sipforum.org] *On Behalf Of *virajith
> *Sent:* June 12, 2012 9:47 PM
> *To:* discussion
> *Subject:* [SIPForum-discussion] dtmf issue on the sip trunk !!****
>
> ** **
>
>
> Hello Team,
>
> I have an issue where dtmf is not getting negotiated . We are doing a
> delayed offer to pbx but the pbx ..
>
> What the dtmf methods advertised in this  200 ok sdp sent by the pbx ?
>
> v=0
> o=IPC 425146 425146 IN IP4 XXXXX
> s=IPC
> c=IN IP4 10.97.232.239
> t=0 0
> m=audio 16442 RTP/AVP 0 8 18 101
> a=rtpmap:0 PCMU/8000
> a=rtpmap:8 PCMA/8000
> a=rtpmap:18 G729/8000
> a=fmtp:18 annexb=yes
> a=rtpmap:101 telephone-event/8000
> a=fmtp:101 0-15,77,84
> a=ptime:20
> a=sendrecv
>
>
> in the ACK that we(our end) send is this...
>
>
> v=0
> o=CiscoSystemsCCM-SIP 2000 1 IN IP4 10.97.202.101
> s=SIP Call
> c=IN IP4 10.97.202.124
> t=0 0
> m=audio 19504 RTP/AVP 0 101
> a=rtpmap:0 PCMU/8000
> a=ptime:20
> a=rtpmap:101 telephone-event/8000
> a=fmtp:101 0-15
>
>
> What the dtmf  methods advertised and negotiated?
>
>
> Thanks,
> Vir
>
>
>
>
>
>
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> ****
>
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>
> ** **
>
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-- 
*Phillip Lewis*
Senior Manager, Engineering
*VIP Communications Inc*
Office | 703-708-1515 Ext 213
Fax | 703-708-1518
Email | phillipl at joinvip.com
Website | www.joinvip.com
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