I have configured 4 Cisco Phones, with the Call Forward Unregistered Internal and Call Forward Unregistered External feauture, as follows:
PhoneA - Directory Number 8000 ; CFU: 8001 (Status in the CUCM is unregistered)
PhoneB - Directory Number 8001 ; CFU: 8002 (Status in the CUCM is unregistered)
PhoneC - Directory Number 8002 ; CFU: 8003 (Status in the CUCM is unregistered)
PhoneD - Directory Number 8003 ; CFU: 8000 (Status in the CUCM is registered)
When I call to directory number 8000 the message of CUCM say than extension is unavailable, How I can solve the problem?
(When the second hop is a phone registered the CFU works, if the second phone is unregistered the CFU don´t work).
*CFU=Call Forward Unregistered. Platform: CUCMv8.