In Case Of Power Failure; Maintenance Information - Cortelco Colleague 2220 Owner's Instruction Manual

NO CALLER INFORMATION IS DISPLAYED WHEN HEARING THE CALL WAITING
AUDIO SOUND
Verify that you have subscribed to the Call Waiting Caller ID service from your
•
telephone company.
MESSAGE ERROR HAPPENS FREQUENTLY
Caller information was not transmitted properly. Check with your telephone
•
company to see if there is a problem with your phone line.
Since our special design will always retain your stored call records, we encourage you
to disconnect all the telephone cords and adapter; and then reinstall the unit step by step
per this instruction manual before you ask for service.
SPECIAL NOTE : The call records will not be erased when the adapter is
disconnected. A special E2PROM design allows the unit to always retain your stored
call records after you disconnect the adapter

IN CASE OF POWER FAILURE

If AC Power is lost, outgoing calls can only be made using DTMF dialing on
Line 1.
M
AINTENANCE
Treat your telephone equipment with care for trouble-free performance. Avoid
dropping the handset. Carefully place the handset on-hook after use.
Avoid putting near heating appliances and devices that generate electrical noise (for
example, motors and florescent lamps).
Clean your telephone equipment with a damp cloth. Stains may be removed with
a mild soap. Do not use liquid or aerosol detergents or cleaning agents.
Do not expose to direct sunlight or moisture.
Retain the original package in case you need to ship it at a later date.
I
NFORMATION
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