Cortelco 7150 Telephone User Manual


 
TELEPHONE SERVICE PROBLEMS
TROUBLESHOOTING
PHONE DOES NOT RING
1. HI/LOW/OFF ringer switch is set to OFF position
2. Line cord is disconnected at telephone outlet or at telephone end.
3. Phone is OFF HOOK. Make certain the hookswitch is depressed when the handset
is in the cradle.
4. SPEAKERPHONE indicator is on. Turn off speakerphone.
NO DIAL TONE
Wire is disconnected at telephone jack or at wall jack. Test the telephone in a different
wall jack. If it works, the first jack may be defective.
HAVE DIAL TONE BUT CANNOT DIAL OUT
Check if the PULSE/TONE switch is at the correct position.
REDIAL BUTTON DOES NOT FUNCTION
The telephone may have been momentarily disconnected from the telephone jack.
BLANK SCREEN
Check if the adaptor is connected properly
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 the Caller
ID service this unit will not display the call waiting caller ID information.
2. Check if your answering machine is set to answer the call before 2 rings. If so,
switch the setting to answer after 2 rings.
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.
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