Cisco 7832 Manuel de dépannage - Page 6

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Phone Resets During Heavy Network Usage

Problem

If the phone appears to reset during heavy network usage, it is likely that you do not have a voice VLAN

configured.

Solution

Isolating the phones on a separate auxiliary VLAN increases the quality of the voice traffic.

Phone Does Not Power Up

Problem

The phone does not appear to be powered up.

Solution

In most cases, a phone restarts if it powers up by using external power but loses that connection and switches

to PoE. Similarly, a phone may restart if it powers up by using PoE and then connects to an external power

supply.

Phone Cannot Connect to LAN

Problem

The physical connection to the LAN may be broken.

Solution

Verify that the Ethernet connection to which the Cisco IP Phone connects is up. For example, check whether

the particular port or switch to which the phone connects is down and that the switch is not rebooting. Also

ensure that no cable breaks exist.

The following sections describe how to resolve audio problems.

No Speech Path

Problem

One or more people on a call do not hear any audio.

Cisco IP Conference Phone 7832 Multiplatform Phones Administration Guide

Troubleshooting