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Is DTMF signalling supported on the VoIP call leg?

Some times in VoIP prepaid card application we need to use VoIP call leg with DTMF signalling support. Example, PIN authorization in the IVR on the VoIP dial-peer. Is this feature plan to support?

2 REPLIES
New Member

Re: Is DTMF signalling supported on the VoIP call leg?

hello there.

the dtmf-signaling is transported by h245 (out of band-signaliling protocol as part of h323 ). your ivr-application should be able to sort that out. al least our ivr does this very fine.

gerhard

New Member

Re: Is DTMF signalling supported on the VoIP call leg?

Hi,

In case you are using SIP call-signaling and you have Cisco MGW there is another way to guarantee DTMF transmit (out of band) by using Cisco propriety dtmf-signaling rtp,

Yaron

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