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Cisco 9971 phones registration rejected in CUCM 9.1.2

Hi

 

im trying to register a cisco 9971 phone in cucm 9.1 but the registration getting rejected and it displays Telephone Service is unavailable.

Kindl help on this.

4 Replies 4

Gordon Ross
Level 9
Level 9

Has this phone been used before on a CUCM cluster? You may want to try resetting the security settings on the phone: Settings -> Admin Settings -> Reset Settings -> Security Settings -> Reset

 

GTG

Please rate all helpful posts.

I did resetting no use. still telephone service is unavailable. these are new phones

Two more thoughts:

 - Have you looked at the logs on the phone? They might reveal something.

 - Power off the phone, delete the device from CUCM, re-add the device and try plugging the phone in again.

 

GTG

Please rate all helpful posts.

Hi Lakshman,

 

you can refer the link.

 

https://supportforums.cisco.com/discussion/11343316/cisco-ip-9971-registration-rejected

 

what is exact CUCM version and firmware under Device ---device settings ---device defaults for 9971?

regds,

aman

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