I have a CISCO SIP IP Phone SPA504G with SIP enabled. I am attempting to get it to register with the Cisco call manager. I am running CM 8.01.
I have created the sip user ID and password. Assigned it basic third part SIP protocol. I do have sufficient licenses. I have also assigned a DN to the phone.
I am getting error 404 failed on the screen of the SIP phone. I checked the call manager under the SIP phone device and it is showing under device information registration rejected.
I have double checked all of the user ID's to make sure that they match between the CM and the sip phone. I suspect the sip phone isn't able to register with the call manager.