Cisco 7905G IP Phone mysteriously unregisters from CallManager

5 pts.
Tags:
Cisco
Cisco CallManager
Cisco Unified Communications Manager
Cisco Unified IP Phone
IP phones
IP telephony
Unified Communications
VoIP
I have 7905G ip phones that mysteriously unregister from call manager. The only way to restore service to phone is to restart phone. Has anyone experienced this?

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Thanks. We'll let you know when a new response is added.

We have seen this also. Try updating the firmware on the phone. If that does not work, then you may have a faulty device that needs to be replaced.

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