I have made each step to configure "EXTENTION MOBILITY" in the Call Manager 4.3 (Guide: Cisco Unified CallManager Features and Services Guide, Release 4.2(3) [Cisco Unified Communications Manager (CallManager)]), but my configuration in the CCM fall :(, when I try to accede to the service on the telephony IP and I ingress the username and the PIN configureds en el CALL MANAGER, and the display in the phone show "Authentication Unsucessfull", and the username and password are correct, I don't understand :( ....
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How does the phone registered in CUCM environment?
-The phone will obtains power via PoE or AC adapter.-The phone will loads its locally stored firmware image.-The phone learns the voice vlan id via cdp from the switch.-Via...
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