[cisco-voip] H.323 DTMF to SIP 2833

[Chris Ward (chrward)]

CUCM support RFC2833 so long as one of the legs is SIP. An H323 to SIP call through CUCM should allow RFC2833.

+Chris
Unity Connection TME

From: cisco-voip [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Mark Holloway
Sent: Wednesday, July 17, 2013 8:13 AM
To: Divin John (dijohn)
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] H.323 DTMF to SIP 2833

John is correct, if you're using Alphanumeric on H323 you should be able to use SIP INFO without the need of an MTP. The question is what's on the other end of the SIP Trunk, and will they support SIP INFO?

DTMF interworking between SIP and H.323 in the signaling plane, using the Alphanumeric method
of UserInputIndication


On Jul 16, 2013, at 1:29 PM, Divin John (dijohn) <dijohn at cisco.com<mailto:dijohn at cisco.com>> wrote:


CUCM on the H323 leg doesn't support rfc2833 (rtp-nte).
So, to stop CUCM from invoking an MTP, the SIP side should support Out of band (notify maybe)

Regards,
Divin

From: Nate VanMaren <VanMarenNP at ldschurch.org<mailto:VanMarenNP at ldschurch.org>>
Date: Tuesday, 11 June 2013 1:26 AM
To: "cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>" <cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>>
Subject: [cisco-voip] H.323 DTMF to SIP 2833



What H.323 DTMF method can I use on a H.323 dial-peer to CUCM that will not invoke an MTP when the outbound side of CUCM is a SIP Trunk that is configured to use 2833.

I am currently using h245-alphanumeric, which seems to be invoking an MTP.

Thanks,
-Nate


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