Avaya 1600 Series Installation And Maintenance Manual page 68

Troubleshooting Guidelines
Table 3: Operational Error Conditions for 1600 Series IP Deskphones (continued)
Condition
The deskphone
was working, but
does not work now,
68 1600 Series IP Telephone Installation and Maintenance Guide
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AND no lights are lit
on the deskphone and
the display is not lit.
AND power to the
deskphone is fine, but
there is no dial tone.
The display might
show "System Busy."
AND the deskphone
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 deskphone, 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 deskphone using ARP or
trace-route and from the deskphone 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 deskphone. Verify no one
changed the deskphone settings locally using
the VIEW and ADDR codes, as described
earlier in this guide. Verify the deskphone
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 deskphone 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 deskphone.
CAUSE: Loss of communication with the call
server.
RESOLUTION: As above.
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