IP Phone 8841 registration

[Ahmed habib]

I did configuration to 2911 router as CME 10.5 and downloaded a firmware of IP Phone 8841 SIP and completed configuration but the phone is showing always (Phone is registering) on screen.

Can anyone help me , I didn't install cme full 10.5 .tar . Is it the problem ?

Here  is the configuration 

[R0g22 · Accepted solution]

Add "source-address X.X.X.X" command under voice register global. "X.X.X.X" will be the IP for Gig0/0.3 interface since you are binding your SIP traffic to this interface. I assume this is also the voice SVI.
Next, if your phones are not in same subnet as your CME, you need to add "authenticate register" under voice register global and configured each pool with a username/password since CME won't do a MAC authentication.

[R0g22 · Accepted solution]

Another suggestion. Upgrade the CME to 11.0. 8841 phones are natively supported on that CME version and you won't have to do fast track configuration that you have at the moment. Phone firmware will need to be upgraded to "10-3-1" as well.

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucme/requirements/guide/cme11spc.html

[Ahmed habib]

Thanks very much  

Nipun Singh Raghav

[R0g22]

Hope that was helpful. Have a nice one.

[it@digitsaudi.com]

thanks a lot, work for me, i tried every thing but i miss to check the compatibility of the CM witch cause this issue.