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One way communication happening from CCM 6.0 to CCM 8.0

Unanswered Question
Mar 26th, 2012
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Dear All,


We have a intercluster trunk configured from CCM 6.0 to CCM 8.0; where some phones are registered on CCM 6.0 and other phones are registered on CCM 8.0.


When we call from phone registered on CCM 6.0 to CCM 8.0 call is happening and voice is flowing through the Trunk.


But when we try calling from phone registered on CCM 8.0 to CCM 6.0 sometimes the call is landing but voice does not flow and sometimes its just shows processing and call does not proceed.


( Both the CCM's are connected on the same zone without any firewall.)


Kindly Update what could be the problem.


Regards,

Ranjit

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gnanem Mon, 03/26/2012 - 05:28
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Hi,

Do you have ICT from cucm 8.0 to 6.0?.


Regards,

Gnaneswaran.

ronpatel Mon, 03/26/2012 - 05:41
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HI


How is routing done to reach both the network.


regards

Ronak Patel

kusatija Mon, 03/26/2012 - 06:53
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Hi Ranjit,


Does same zone mean they are on the same LAN, i think what Ronak meant was what are the devices in between the clusters...

Can you post call manager traces with calling called party numbers from both nodes for a bad call.

Do you have an MTP box checked on Cucm 8 side on the trunk..?


HTH

Kunal

ranjit123 Mon, 03/26/2012 - 07:53
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MTP box is unchecked


there is a core switch on which both the CUCM'S are connected.

ronpatel Mon, 03/26/2012 - 08:47
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Hi,


I was talking about ip routing, Just plain IP routing. As you said they are connected to core switch.


1) Do you have seperate VLAN for both the cluster. If yes Do you have proper routing between them.


2) Make sure you do not have any ACL applied between path.


Regards

Ronak Patel

kusatija Mon, 03/26/2012 - 09:47
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Hi Ranjit,


Can you post a detailed call manager trace, with calling/called party numbers...


Regards

Kunal

ranjit123 Mon, 03/26/2012 - 21:41
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Hi  Kunal Satija,


The Issue got resolved after a Hard Boot of CUCM 6.0 ( this step was taken after lots of troubleshooting)


This was the same remedy which was followed when the same issue had occured from our CUCM 6.0 & Notel Call Manager.


Regards,

Ranjit

kusatija Tue, 03/27/2012 - 09:44
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Hi Ranjit,


Great, thanks for keeping the post updated.


Regards

Kunal

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