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Cisco IP Phones not registering in Call Manager1

Thanks Uday for your reply...

In our office we have two buildings phones in one building belong to Publisher and phones in other building belong to Subscriber. There are mostly 7911 phones in Publisher are not working. When you power on the phone it says Upgradding........and the says error. After this it does not do any thing. When I took the phones to other building and connect it to the port there it did the firmware upgrade and then got registered to Publisher. In the end i tool the phone back to the old place and it starts working. I don't understand why could be the issue? I also installed the firmware in call manager Publisher for 7911. SCCP11.8-3-2S restarted the tftp no use.. ny ideas bout this?? Thanks.


Re: Cisco IP Phones not registering in Call Manager1

Hi Rohit.

Did you try to invert the priority to cucm group just to see if the other building phones upgrade correctly.

In the other building, does phone receive the same subnet and tftp option?.

Let me know



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