Nortel M3820 Installation And Administration Manual page 214

Troubleshooting
Symptom
The display is blank (that is, the
time and date are not displayed).
214
What to do
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Digital Telephone IP Adapter Installation and Administration Guide
Take the digital telephone handset off
hook and dial the online SPRE code.
The Digital Telephone IP Adapter unit
attempts to connect to the host PBX.
When the connection is established, the
time and date display.
Check the IP network and ensure that:
it is not down
!
traffic is being routed between the
!
Digital Telephone IP Adapter unit and
RLC on the host PBX
PING the RLC from the Digital
Telephone IP Adapter unit to verify IP
network connectivity.
Restart the RLC, wait one minute, and
then restart the Digital Telephone IP
Adapter unit.
Ensure that the RLC is enabled in its
host PBX slot.
In overlay 32 on the host PBX, check
the status of the RLC, disable and enable
it, or reseat it if necessary.
Contact your telecom administrator.
There might be problems at the host
PBX.
Standard 2.1