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Spectralink 8440 CUCM registration issues.


I'm attempting to get a new Spectralink 8440 SIP phone to work with CUCM (11.5) and am running into some issues.  So far I've done the following:

- Created a new Phone Security Profile that mimics the SIP (Basic) one but requires digest credentials

- Added a new user manually into the user DB  with a user ID that is identical to the DN that the phone will use

- Set the new user's Digest Credentials to the same number as the DN it will use

- Created new SIP (Basic) device using my newly created Phone Security Profile and set the Digest User to the new user I created that matches the DN

- Phone associates to the wireless AP

- Phone will not register with CUCM


Any assistance will be greatly apprecaited


Venkatesh Perumal
Rising star
Rising star

This should be added/registered to CUCM as 3rd Party SIP Phone.

follow the below guide for configuration assistance/example.






Hi Venkatesh,

Thank-you but I have completed that step. No registration with CUCM


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