Hi I'm actually having a similar issue. Using this link... http://www.cisco.com/en/US/products/sw/voicesw/ps4625/products_configuration_example09186a00808f33eb.shtml What I did was: 1.- I removed from the configuration: authenticate register authenticate realm cisco.com 2.- I left the phones on the same network as the CME. Now my problem is the unprovisioned message on the same phone everytime that phone is on a DIFFERENT subnet. According to the command lookup tool, you should use the "authenticate register" when you have ip phones on a different subnet, but I'm still having the unprovisioned issue. I hope this helps. Román.
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