Cortelco CALLER ID TYPE II 2700 - Manual (Page 20)

20
T
ELEPHONE
S
ERVICE
P
ROBLEMS
If you have any problems with your telephone service, deter-
mine if the problem is with your unit or the telephone company lines
BEFORE CALLING THE TELEPHONE COMPANY. Be aware that the
telephone company may charge you for a service call if the problem is
caused by your telephone.
TROUBLESHOOTING
PHONE DOES NOT RING
1. Line cord is disconnected at telephone outlet or at telephone.
2. Phone is OFF HOOK. Make certain the hookswitch is depressed
when the handset is in the cradle.
3. SPEAKERPHONE indicator is on. Turn off speakerphone.
NO DIAL TONE
Wire is disconnected at telephone or at wall jack. Test the telephone in
a different wall jack. If it works, the first jack may be defective.
REDIAL BUTTON DOES NOT FUNCTION
The telephone may have been momentarily disconnected from the
telephone jack.
BLANK SCREEN
1. Check if the adapter is connected properly.
2. Press the Contrast button to see if contrast level is set correctly.
CALLERS ARE NOT DISPLAYED ON THE SCREEN
1. Verify that you have subscribed to the appropriate service (Caller
ID and Call Waiting Caller ID) from your telephone company. If
you only subscribed to Caller ID service the unit will not display
call waiting caller ID information.
2. Check if your answering machine is set to answer before 2 rings.
NO CALLER INFORMATION IS DISPLAYED WHEN HEARING THE CALL
WAITING BEEP
Verify that you have subscribed to 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 retain your stored call records even with
the power adapter disconnected, 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.