cucm 8.5 h323 phone keeps ringing

[Matthew Doyle]

Hi All,

I have phones registered on CUCM 8.5 with a registered h323 gateway connected via T1 and WAN ethernet to a CME gateway at remote site.

incoming calls from BR phones to CUCM 8.5 registered phones HQ phones rings and connects,

however outgoing calls from CUCM 8.5 HQ phones rings the  BR phone at the CME remote but when I connect the BR phone the HQ phone continues to ring although the BR phone at the CME remote gateway shows connected?

HQ phones <------> CUCM 8.5 <-----> h323 gateway (IP to IP configured) <---------> CME gateway <----------> BR phones

ive attached the following;

h323 gateway config

CME gateway config

debug cch323 session

debug voip ipipgw

[Manish Gogna · Accepted solution]

Hi,

To resolve this issue, perform these steps:

1. Open the Cisco CallManager Admin page.
   
   
2. Go to the Gateway Configuration page
   
   
3. Uncheck  Wait for Far End H.245 Terminal Capability Set.

More details here

https://supportforums.cisco.com/document/13376/ip-ip-h323-ios-gateway-calls-between-two-remotely-located-cisco-callmanagers-fail-one

Manish

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[Ayodeji Okanlawon]

Manish, is this not for two cucm clusters? The issue here is between cucm and come.. 

[Manish Gogna]

This settings is not specific to ICT, it can be causing the issue in this scenario as well. A quick test can be done to check, else the traces can be looked at to confirm if this is indeed the issue.

Manish

[Ayodeji Okanlawon]

Hi, 

Can you please send the following 

1.debug voip ccapi inout 

2. Debug h225 asn1

3.debug h245 asn1

Include the calling and called numbers 

[Matthew Doyle]

Thankyou Manish, this has resolved my issue. Apologies for the delayed reply.

[Manish Gogna]

No problem, thanks for updating the post.

Manish