Avaya 4600 Series manual Series IP Telephone LAN Administrator’s Guide

4600 Series IP Telephone LAN Administrator’s Guide

Table 5-1. Some Error Conditions in Operation of 4600 Series IP Telephones —Continued

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: Short-term, restart the
	restarting sequence).
		telephone.
		Long-term, administer the DHCP
		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 trace-route), and from the telephone to the PBX (by invoking a feature button). Verify the LAN administration has not changed for the TN799 or TN 2302AP boards, or the LAN equipment (routers, servers, etc.) between the switch and the telephone. Verify no one has locally changed the telephone settings (by using the VIEW and ADDR codes, as described in the 4600 Series IP Telephone Installation Guide). Verify the volume on the telephone is set high enough. Finally, conduct a self-test.

Error Conditions

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