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4600 Series IP Telephone LAN Administrator’s Guide
Table
Condition |
| Cause/Resolution | |
The telephone stops | AND No lights are lit on | CAUSE: Loss of power | |
working in the middle of | the phone and the | RESOLUTION: Check the connections | |
a call, | display is not lit. | ||
between the telephone, the power | |||
|
| ||
|
| supply, and the power jack. | |
|
|
| |
The telephone stops | AND Power to the | CAUSE: DHCP Lease expired or DHCP | |
working in the middle of | telephone is fine (and | server not available when telephone | |
a call, | the telephone may have | attempts to renegotiate DHCP lease. | |
| gone through the | RESOLUTION: | |
| restarting sequence). | ||
| telephone. | ||
|
| ||
|
| ||
|
| application to allow longer leases | |
|
| (“Infinite” or “Unlimited” is | |
|
| recommended). | |
|
|
| |
The telephone had been | AND no lights are lit on | CAUSE: Loss of power. | |
working, but does not | the phone and the | RESOLUTION: Check the connections | |
work now, | display is not lit. | ||
between the telephone, the power | |||
|
| ||
|
| supply, and the power jack. | |
|
|
|
power to the telephone is fine, but there is no dialtone. (Display might show “System Busy”).
CAUSE: Loss of communication with the PBX switch
RESOLUTION: Check LAN continuity from the PBX to the telephone (using ping or
Error Conditions