That is interesting. I used fast track for ours with no issue until i upgraded to 12.3 CME and now that the phone is officially supported it no longer works.
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!voice register pool-type 7832-FT phoneload-support telnet-support description 7832 Confer...
Can you write your configuration to flash?
copy run flash:
If not your flash is bad. I ran into this a lot with a certain shipment of 5505's a long time ago.
Wes