I am trying to push text to the IP phones 7940/60/70. What I have found is that the authentication to the phone is random. Using the same username and password on the same phone some times authenticates it and some times it does not. For example, we get CiscoIPPhoneError Number="4" at times. When other times, we do not get this error. There appears to be no pattern. Even if we try it within seconds, some times we can authenticate and some time we can't.
I have checked the device association. We are using CM 4.1 and the latest firmware. Some of our partners have also complained about it. They are suggesting to change the Cisco's default authentication URL - as its buggy. CM is on version 4.x with 5.x around the corner. Why is it still not mature enough?
Sometimes the problems gets fixed by restarting IIS on CM, but it comes back. Sometimes the problem gets fixed by deleting the user in CM and creating it again and associate the new user with the devices. Sometimes changing the firmware fixes the problem. Bu there is really no pattern. We still are unable to fix this in a reliable manner.
Please help. Cisco - don't be another Microsoft - in terms of quality. CM is on version 4.x with 5.x around the corner. Why is it still not mature enough?
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