[cisco-voip] DTMF SIP to Verizon, wrong payload type...

[miken miken]

Configuration examples and explanations for all of the primary North
America SIP providers can be found on this link. You need partner access to
view it.

http://www.cisco.com/en/US/partner/solutions/ns340/ns414/ns728/networking_solutions_products_genericcontent0900aecd805bd13d.html

Thank you
MikeN

On Thu, May 17, 2012 at 11:01 AM, Jonathan Charles <jonvoip at gmail.com>wrote:

> We have a SIP trunk to Verizon, Long Distance, Local and international
> work fine, however, for toll free calls, DTMF does not function.
>
> We are set to send RTP-NTE, but Verizon is saying that we are sending this:
>
> a=rtpmap:101 X-NSE/8000
>
> And it should be:
>
> telephone-event/8000
>
> And that is why it is failing.
>
>
>
> What configuration change can we do to force it to send the right DTMF
> method?
>
>
> This is on a Cisco 3825 CUBE running 12.2.20.T4 (per Verizon's request),
> there is a software MTP and Transcoder on the router (both in use)...
> Verizon says it is not their problem and closed their ticket.
>
> Relevant SIP Config:
>
>
> !
> voice call send-alert
> voice rtp send-recv
> !
> voice service voip
>  allow-connections h323 to h323
>  allow-connections h323 to sip
>  allow-connections sip to h323
>  allow-connections sip to sip
>  no supplementary-service sip refer
>  redirect ip2ip
>  h323
>   h225 display-ie ccm-compatible
>  modem passthrough nse payload-type 101 codec g711ulaw
>  sip
>   bind media source-interface MFR1
>   early-offer forced
>   midcall-signaling passthru
> !
> !
>
> dial-peer voice 800 voip
>  description OUTBOUND Voice SIP calls to VzB
>  destination-pattern 1800[2-9]......
>  voice-class sip dtmf-relay force rtp-nte
>  session protocol sipv2
>  session target sip-server
>  incoming called-number .
>  dtmf-relay rtp-nte
>  codec g711ulaw
>  no vad
>
>
> !
> sip-ua
>  retry invite 2
>  retry bye 2
>  retry cancel 2
>  registrar dns:verizonsipgateway expires 3600
>  sip-server dns:verizonsipgateway:5071
>  g729-annexb override
> !
>
>
> Jonathan
>
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> https://puck.nether.net/mailman/listinfo/cisco-voip
>
>
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