Phones restarting

[Dmitry Kozlov]

Hello.

I have a strange issue with ucm 8.6.

Cisco phones (sip firmware) restarting in a few seconds after call established.

It happens during any type of calls, onnet and offnet. I have attached sdl trace.

Any ideas what can be wrong?

[Hermanus Janse van Vuuren · Accepted solution]

what is the phone type and what is the firmware load on the phone?

Your cucm is 8.6.x?

[Dmitry Kozlov]

Phone types are: 7906, 7911, 7942, 6921.

Firmwares are: SIP11.9-2-1S, SIP42.9-2-1S, SIP69xx.9-2-1-0

cucm version is: 8.6.2.10000-14

[Hermanus Janse van Vuuren · Accepted solution]

Have a look at the following link:

https://tools.cisco.com/bugsearch/bug/CSCtq94673

[Dmitry Kozlov]

We have updated our cucm to version 8.6.2.20000, but problem still remains.

Any other ideas?

[Manish Gogna]

Hi Dmitry,

Can you check the following:

Does the phone reset or does it restart completely?

Any errors on the switchport?

Is the issue specific to a site or a specific model of phones?

Do we have the detailed callmanager traces for a call that experienced the issue?

http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_tech_note09186a0080094e89.shtml

HTH

Manish

[Dmitry Kozlov]

Hello Manish,

The phone resets to Cisco logo, configure ip and re-register on the server.

No errors on switchport.

We have single node on vmware esxi. The issue observed on any phone (7906, 7942 and others).

I have attached trace logs. Last call was made around 10:22, phone name SEP002155D45D52

[Manish Gogna]

Hi Dmitry,

Can you share the calling , called party detail and also the approximate duration after which the phone reset during the active call? This will save me some time in looking through the trace.

Manish

[Dmitry Kozlov]

Calling number is 2400. Called number is 989218945054.

mac of the calling phone 002155D45D52

Call started at: 10:22:05.262 27.10.2014

Ended at: 10:23:08.144 27.10.2014

Phone reseted after a few seconds. 5-7 seconds.

[Manish Gogna]

Hi Dmitry,

I see the phone unregistering with Reason code 13

10:23:05.479 |EndPointUnregistered - An endpoint has unregistered Device name:SEP002155D45D52 Device IP address:5.200.43.77 Protocol:SIP Device type:369 Device description:test_cucm Reason Code:13 IPAddressAttributes:0 LastSignalReceived:SIPStationDPrimaryLineTimeout CallState:2400-disconnect_request11 App ID:Cisco CallManager Cluster ID:StandAloneCluster Node ID:cucm|AlarmSEP002155D45D52^*^SEP002155D45D52

10:23:05.479 |-->RISCMAccess::DeviceUnRegister(...)|*^*^*

Reason code 13 is in general network related connectivity issues and specifically it points to TCP keepalive timeout between IP{ phone and cucm.

HTH

Manish