problem with ucm 8.6.2 and ip communicator

[gevangelista]

       I've a problem with ucm 8.6.2 and ip communicator.

on my pc.

If I look on ther ucm the communicator is registered, but on the communicator disply doesn't appers nothing (only the date/time)

Can you help me?

thanks in advance

Giancarlo

[will.alvord · Accepted solution]

Do you have a line configured on the IP Communicator's CUCM config?

[gevangelista]

Yes,I've the auto registration enabled.

After the boot   in the Cucm Isee the Cipc registerd witch the autoregistration number, bur on the phone I haven't the number

[will.alvord]

Any firewalls/VPN's in between the pc and CUCM?  Also, what do you see in the status messages on the phone?

[gevangelista]

Hi Will, excuse for late, but I was very busy to debugging the problem.

I've solved.

The problem was a  mtu  to high!!!!

The CUCM see the ipphone between a GRE Tunnel  over a pppoe connection.

The ethernet mtu are 1492 and the pppoe support smallest mtu.

I've configured the tunnel mtu at 1375 and now all works well||| thanks for haelp

Regards

Giancarlo

[will.alvord]

Great job troubleshooting!


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