Cisco 7911 not registering remotely

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Jun 19th, 2009
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Hi Experts,


Recently one of our clients has a working CCM 4.3 and is using 7911 IP Phones both at HO and remote sites. All is working and fine, until we change the server with a new CUCM 7.0, all IP Phones at HO registered as expected and working, but IP Phones at remote sites was able to upgrade firmware but can no longer register, the IP Phones located at the remote sites just stuck with the Cisco logo. So we decide to get one ip phone and power it up at HO, it was able to register as expected. We then put it back to the remote site and the problem still persists.


To isolate, we then test the old CCM 4.3 back to the network and the same IP Phone located at the remote site register normally. Can you guys give inputs on this issue? I've check the TFTP logs and it looks fine.


Regards,


Dennis

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dennisbehrens Fri, 06/19/2009 - 07:56
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Dennis,


Have you verified that the phones are getting the correct TFTP server informaiton (either statically assigned or through DHCP)?


Do you have a multiple server cluster? If so, pay attention to whether the phones are grabbing TFTP from different servers.


Do the phones have an error or status message on them?

Claudio Quiroz ... Fri, 12/18/2015 - 11:10
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Your problem sounds as a networking issue.

Go to the gateway and check: mgcp and ccm-manager service.

If your DHCP and TFTP services are on UCM, make sure setting up option 150 and 66.

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