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Community Member

configuring DTMF tones

Hi,

I have to configure DTMF in dial peer voip but I don't know which type have to configure rtp-nte or cisco-rtp.

What's the difference both them?

Thank you.

Regards,Paolo

2 REPLIES
Green

Re: configuring DTMF tones

It will depend on your setup-

For CCM we use dtmf-relay h245-alphanumeric

since CCM only understand this type of DTMF as inbound.

For SIP we use Named Telephony Events (NTE), or RFC 2833 which is dtmf-relay rtp-nte

The cisco-rtp Forwards DTMF tones by using Real-Time Transport Protocol (RTP) with a Cisco proprietary payload type.

http://www.cisco.com/en/US/products/sw/iosswrel/ps1839/products_feature_guide09186a0080087edb.html#24720

Community Member

Re: configuring DTMF tones

Hi,

thank you for your answer but I forget to tell you that I'm using CCME on Cisco 1760-V.

Is there difference with CCM configuration?

Regards, Paolo

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