Cisco 30 VIP Troubleshooting Manual page 29

For cisco callmanager release 3.0(1)

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Cisco IP Telephony Troubleshooting Guide for Cisco CallManager Release 3.0(1)

There should be one Warning and one Error message for each phone that resets. In this case, the

problem is often that the phone cannot keep its TCP connection to the Cisco CallManager alive,

so the Cisco CallManager resets the connection. This may be because a phone was turned off or

there may be a problem in the network. If this is an intermittent problem, it may be useful to use

Microsoft Performance to record phone registrations.

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