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7912 error

we had a power local power outage and the CM went down. When they came back up all the phones registered back with the CM apart from all the 7912. I have tried deleting and re adding them to cm, but still no joy, phone do get ip address

using CM version 4.1 (3)

1 REPLY
Bronze

Re: 7912 error

If your IP phones still fail to auto-register after you complete the instructions in the Auto-Registration guide, reset the IP phone back to factory defaults:

Press **# in order to unlock Network Configuration on the phone.

Press Settings.

Press 3 on the keypad (or scroll down) for Network Configuration.

Press 33 on the keypad (or scroll down) for Erase Configuration.

Press the Yes softkey.

Press the Save softkey.

This URLs should help you:

Cisco Technical Support IP Phone FAQ:

http://www.cisco.com/en/US/customer/products/hw/phones/ps379/products_qanda_item09186a00800a6763.shtml

Auto-Registration

http://www.cisco.com/en/US/customer/products/sw/voicesw/ps556/products_administration_guide_chapter09186a00803edaa3.html

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