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DTMF over VoIP

guillermohurtado
Level 1
Level 1

‎01-13-2009 06:51 AM - edited ‎03-15-2019 03:29 PM

Hello,

Does somebody know or have a good DTMF over VoIP book, tutorial or white paper?

Thank you.

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Nicholas Matthews
Level 9
Level 9

‎01-13-2009 07:06 AM

This will be done on a per protocol basis, at least in a Cisco perspective.

Here's the SIP guide:

http://www.cisco.com/en/US/docs/ios/voice/sip/configuration/guide/sip_cg-dtmf.html

MGCP:

http://www.cisco.com/en/US/docs/ios/12_2t/12_2t8/feature/guide/ftmgcpfx.html

Generic:

http://www.cisco.com/en/US/docs/ios/voice/fxs/configuration/guide/fxsrelay.html

You can look at ITU specification Q.24 as well for details on the specifics. I'll attach that for you.

hth,

nick

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