Cisco CME and Phone8851 unregister and register

[faruk.zaimovic]

Hello,

Cisco Phone 8851constalnty register and unregister from Cisco CME.  it is work normaly and during days it is unregister around 10 times.

Log from Cisco CME

Jan 23 14:13:01.411: %SIPPHONE-6-REGISTER: VOICE REGISTER POOL-105 has registered. Name:SEP687909C7EC0E IP:192.168.8.213 DeviceType:Phone
Jan 23 15:06:06.425: %SIPPHONE-6-UNREGISTER: VOICE REGISTER POOL-105 has unregistered. Name:SEP687909C7EC0E IP:192.168.8.213 DeviceType:Phone
Jan 23 15:06:26.355: %SIPPHONE-6-REGISTER: VOICE REGISTER POOL-105 has registered. Name:SEP687909C7EC0E IP:192.168.8.214 DeviceType:Phone
Jan 23 16:47:23.167: %SIPPHONE-6-UNREGISTER: VOICE REGISTER POOL-105 has unregistered. Name:SEP687909C7EC0E IP:192.168.8.214 DeviceType:Phone
Jan 23 16:47:43.305: %SIPPHONE-6-REGISTER: VOICE REGISTER POOL-105 has registered. Name:SEP687909C7EC0E IP:192.168.8.215 DeviceType:Phone
Jan 23 17:56:02.579: %SIPPHONE-6-UNREGISTER: VOICE REGISTER POOL-105 has unregistered. Name:SEP687909C7EC0E IP:192.168.8.217 DeviceType:Phone
Jan 23 17:56:22.567: %SIPPHONE-6-REGISTER: VOICE REGISTER POOL-105 has registered. Name:SEP687909C7EC0E IP:192.168.8.218 DeviceType:Phone
Jan 23 18:36:07.712: %SIPPHONE-6-UNREGISTER: VOICE REGISTER POOL-105 has unregistered. Name:SEP687909C7EC0E IP:192.168.8.219 DeviceType:Phone
Jan 23 18:36:50.404: %SIPPHONE-6-REGISTER: VOICE REGISTER POOL-105 has registered. Name:SEP687909C7EC0E IP:192.168.8.9 DeviceType:Phone

 I have log from Cisco POE Switch  C9200L 

Jan 23 18:28:52.306: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/31, changed state to down
Jan 23 18:29:01.035: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/31, changed state to up
Jan 23 18:29:02.036: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/31, changed state to up
Jan 23 18:30:44.691: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/31, changed state to down

you can see that port goes up and gown, I tested cable and it OK, but i changed patch cable, other cables and I changed phone. I got this for same user.

[M02@rt37]

Hello @faruk.zaimovic 

Please check for any specific errors or anomalies on the switchport by using the command show interface gigabitEthernet 1/0/31. Look for indicators of issues such as excesive errors, drops, or resets...

Verify the PoE status on the switch for that specific port using show power inline gigabitEthernet 1/0/31. Ensure that the PoE is providing sufficient power to the phone.

[Nithin Eluvathingal · Accepted solution]

According to the original post, you have checked the cable, changed the phone, etc. Have you also tried changing the switch port and checking the behavior?

Does this problem affect only one phone or other phones of the same model?

[faruk.zaimovic · Accepted solution]

Hello,

Thank you very much for help, I set up speed 100 on Switch Port and set static IP address on Cisco Phone and now it is looks like stable state. I will continue follow.