CP 8851 not register

[yalcinsoft]

Hello, I have a Cisco CP 8851 IP phone, I could not register it. 7811 - 7821, these were successful, 8851 was not, what can I do, thank you.

[yalcinsoft]

I solved this problem, those who have problems can write

[MxHadi]

could you please share with us how you solved your problem ?..

[yalcinsoft · Accepted solution]

We reset the phone from the settings menu, we write the cucm ip address to the tft server address, we write the phone's MAC address from the device menu, the phone is turned on and off, then it is completed.