For starters, stop introducing unnecessary complexity (and a likely a contributing cause of this problem): convert the H.323 gateway into a SIP trunk so the router doesn't have to do protocol translation.
The 7936 doesn't support in-band RFC2833 DTMF relay which is almost certainly what your SIP carrier wants. This means that CUCM must convert the SCCP out-of-band events into whatever DTMF relay your H.323 gateway is configured for, likely H.245 alphanumeric. The gateway must then convert the H.245 event into an in-band RTP packet toward the carrier. One of the steps in this chain isn't working.
Adding an MTP into the mix won't help here because CUCM can't see a SIP call leg which wants RFC2833, all it can see is the H.323 gateway it passes the call off to. If on the other hand CUCM had a SIP trunk which was demanding RFC2833 (aka RTP payload type 101) in it's SDP offer, then it would invoke an IOS SW MTP for the 7936 to do this conversion for you.
I have created a sip trunk, means converted h323 gateway connectivity to sip trunk. Now all my other phones even not able to reach. I have taken some logs which may help in course. Please guide me fix this.
Please attach either a full router config (sans passwords) or at least the 'voice service voip', 'dial-peer voice', and 'sip-ua' sections. Also call out what IPv4 addresses are what: CUCM nodes, ITSP, CUBE inside/outside interfaces, etc.
thank you all of you for your precious time to help me with this, i found Ayodeji Okanlawon suggestion helpful.
I happened to open TAC case, where they came up with isp using g729br8, which was not supported by default in 7936 phone. Later we enabled g729br8 in transcoder which solved the issue. It is still using h323 to sip connectivity.
You have reached the Cisco Logistics Support Center.. To Check Status of
your RMA, visit Product Returns & Replacements (RMA). Need help? Contact
us by Phone or Email. North Americas Phone: 1800 553 2447 Option 4
Email: email@example.com Europe Phone: +3...
The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...