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Problem with H323 gateway

ev1205
Level 2
Level 2

We have a CUCM ver 8.6.2.22900-9.

For our PSTN access we have the following scheme:

CUCM <========> Cisco2911 <======> ISP-------> PSTN

              H323 tk                              SIP tk

 

Our Cisco2911 is running ver 150-1.M4.

We configure Cisco 2911 as H323 gateway on CUCM, and we established a SIP tk with our ISP.

When we tested incoming calls we received them at router but they are unable to acceess CUCM,

When we tested outgoing calls we got reorder tone and they did not reach our voice gateway.

We run "debug cch323 all" and tested with one incoming and one outgoing call, and we got the out on attached file "debug h323 forum"

CUCM Ip : 10.1.2.2

Router's H323 int: 10.2.2.1

Do you have any idea about the root cause?

Can be an access list problem preventing proper H323 traffic??

 

Thanks in advanced

Enrique

 

 

 

4 Replies 4

afmmanicke
Level 1
Level 1

Do you have voip dial-peers pointing back to your cucm from your gateway?   If not then the call wouldn't route onward to the cucm, but the gateway would also ignore communications from that souce because of toll fraud prevention.

http://www.cisco.com/c/en/us/support/docs/voice/call-routing-dial-plans/112083-tollfraud-ios.html

duplicate

https://supportforums.cisco.com/discussion/12282486/problem-h323-gateway

HTH

java

if this helps, please rate

Manish Prasad
Level 5
Level 5

Collect debug voice ccapi inout for inbound and outbound call and also attach your 2911 config.

Hi Afmmanicke and Manish !!!

Jaime is right, I do not how this case has been duplicated, but at:

https://supportforums.cisco.com/discussion/12282486/problem-h323-gateway

 

I attached debugs applied, and configuration of router.

Thanks in advanced

Thanks

Enrique