Reboots Daily

[Sean Grubb]

We have a user that has recently reported that for the past couple of weeks his phone will reboot daily and erase his call log. I have witnessed the phone rebooting and indeed when you look at any of the call logs that would normally be kept, the phone has none. I have replaced the data cable and inspected it for breaks, I have gone through the port configuration as well as the phone configuration and have compared it to my own and cannot find a difference in the two. I am at a loss as to what could possibly be causing this.

Phone Model: 7941G-GE

CUCM: 10.5.1.10000-7

Any more info let me know and I will do my best to provide it.

Thanks,

[Charles Hill · Accepted solution]

Hey Sean,

You may be hitting the following bug, which causes a restart of the phone intermittently.

However, it doesn't mention the call history being deleted, but if you can resolve the phone restart, it should resolve the call history being deleted.

CSCtc88118

Save Bug

7941G-GE resets with Trap code 0xB0

Symptom:
7941G-GE resets with Trap code 0xB0


Conditions:
Problem is intermittent and resets can occur at any time.

Phone log shows:
ERR 11:08:00.324759 =====================
ERR 11:08:00.325689 Core of CNU 3.3 (0.3)
ERR 11:08:00.326619 Kernel reboot cause -> Bugtrap
ERR 11:08:00.327553 Trap code -> 0xB0


Workaround:
None

Details

Known Affected Releases: (1)

8.5(2)

Known Fixed Releases: 0

Release Pending

Product: Cisco Unified IP Phone 7900 Series

Hope this helps,

Please rate helpful posts.

Thanks.