Cortelco 2730 Telephone User Manual


 
20
TELEPHONE SERVICE PROBLEMS
If you have any problems with your telephone service, determine 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. Some common problems and suggested
solutions are listed below.
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 telephone line cord 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, we encourage you to
disconnect all the telephone cords and then reinstall the unit step by step per this
instruction manual before asking for service.