Check the Microsoft Windows 2000 Event Viewer for ur phones resets.
You will see one warning and one error message for each phone that resets. This indicates that the phone cannot keep its TCP connection to the Cisco CallManager alive, so the Cisco CallManager resets the connection. This may occur because
1: a phone was turned off or
2: a problem may exist in the network.
If this is an intermittent problem, you may find it useful to use Microsoft Performance Monitor to record phone registrations.
Here is a link to assist in determining error messages seen in the Event Viewer on the server:
System error messages for Cisco CallManager: (Look for Device type and Reason
This is a copy of the error in the event log that the customer has sent to me. From looking at the above link I think that this is a device initiated reset.
Can someone please either confirm this with me or correct me.
Error: DeviceUnregistered - Device unregistered.
Device name.: SEP00170E010735
Device IP address.: xx.xxx.xx.xxx
Device type. [Optional]: 115
Device description [Optional].: xxx-7941-1706
Reason Code [Optional].: 8
App ID: Cisco CallManager
Cluster ID: StandAloneCluster
Node ID: 10.201.2.250
Explanation: A device that has previously registered with Cisco CallManager has unregistered. This event may be issued as part of normal unregistration event or due to some other reason such as loss of keepalives.
Recommended Action: No action is required if unregistration of this device was expected..
Can anyone give me a reason why the phones are resetting themselves when the handset is hung up??
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