Avaya 1600 Series Installation And Maintenance Manual page 62

Troubleshooting Guidelines
Table 3: Operational Error Conditions for 1600 Series IP Telephones (continued)
Condition
The telephone was
working, but does
not work now,
62 1600 Series IP Telephone Installation and Maintenance Guide
AND no lights are lit
on the telephone and
the display is not lit.
AND power to the
telephone is fine, but
there is no dial tone.
The display might
show "System Busy."
AND the telephone
was recently moved.
AND the network was
recently changed to
upgrade or replace
servers, re-administer
the Avaya Media
Server, add or change
NAT, etc.
Cause/Resolution
CAUSE: Loss of power.
RESOLUTION: Check the connections between
the telephone, the power supply, and the power
jack.
CAUSE: Loss of communication with the call
server.
RESOLUTION: Check LAN continuity from the
call server to the telephone using ARP or
trace-route and from the telephone to the call
server by invoking a Feature button. Verify that
LAN administration has not changed for the
Gatekeeper, TN 2302AP boards, or the LAN
equipment (routers, servers, etc.) between the
switch and the telephone. Verify no one
changed the telephone settings locally using the
VIEW and ADDR codes, as described earlier in
this guide. Verify the telephone volume is set
high enough. Finally, conduct a self-test.
CAUSE: Loss of communication with the call
server.
RESOLUTION: As above, but pay particular
attention to the possibility that the telephone is
being routed to a different DHCP server, or even
a different call server switch. If so, the new
server or switch might need to be administered
to support the telephone.
CAUSE: Loss of communication with the call
server.
RESOLUTION: As above.
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