ip-phone reboot problem

[tetsuo.kawakami]

Hi,

My customer is running ccm 3.3 and 7940 ip-phone for China, Vietnam and more offices.

They are running more than 100 ip-phones in the Beijing office.

The Beijing users claim that many 7940s reboot during the business hours some times an week.

I suspect that the power is unstable for the office and I would like to prove it.

What kind of message is supposed to be logged for the PoE switch(Cat3550) or CCM when they have power problem?

Regards,

Kawakami, Tetsuo

[jeffrey_ala]

For starters you could do a "show ver" on the 3550 to show the uptime. This would determine if the switch is losing power and reloading.

[testeven]

You might want to check the CCM Application Log. When the phone unregisters it should log a message with a Reason Code. It will tell you if it's a Device Initiated Reset a CCM reset or a Network connectivity issue.

Check this link:

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/err_msgs/4_x/alarms41.htm

Hope this helps :)

[tetsuo.kawakami]

JEFF-san, TERE-san,

It is good help. Thank you for your quick advice. I would inform them these information.

Regards,

Kawakami,Tetsuo

NCR Japan