Avaya one-X 9600 Series Installation And Maintenance Manual page 59

Table 3: Operational Error Conditions for 9600 Series SIP IP Telephones (continued)
Condition
The telephone was
working, but does
not work now,
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 or
the call appearances
or feature buttons do
not work.
AND the telephone
was recently moved.
AND the network was
recently changed to
upgrade or replace
servers, re-administer
the CM call server,
SIP, add or change
NAT, etc.
Operational Errors and Status Messages
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
administration has not changed for the LAN
equipment (routers, servers, etc.) between the
call server and the telephone. Verify no one
changed the telephone settings locally using the
VIEW and ADDR craft procedures, as described
earlier in this guide. Verify the telephone volume
is set high enough.
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 proxy server. If so, the new server
might need to be administered to support the
telephone.
CAUSE: Loss of communication with SES.
RESOLUTION: As above.
Issue 3 December 2008
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