[cisco-voip] IP Phone TFTP Server Change Problem

[Casper, Steven]

I have about 20 sites to convert from one Call Manager Cluster on 7.1.3 to another on 7.1.5. Testing this weekend we took a site and changed the Voice and Data VLANs to point to new VLANs  with  new associated IP and IP Helper addresses and reloaded the router. About half of the phones came up on the new Call Manager but the other half did not. They got new IP addresses and all other associated settings but the old TFTP server address stayed in the phone config. Resetting the phones, disconnecting and reconnecting the phones or shut/no shut on the switch ports did not help. The only way to get the phones to register to the new cluster was to erase the IPv4 config on each phone. The phones then reset and received the correct TFTP server address and registered correctly to the new Cluster.

Anybody seen this before and came up with a fix other than touching each phone? Phones are 7962 running SCCP 9-0-2SR1S

Thanks,
Steve
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