Troubleshooting - Cortelco 122000TP227S User Manual

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If you have problems with your phone, please check below
for helpful hints:
BLANK OR
FAINT
SCREEN
CALLER ID
DOES NOT
WORK
PHONE
WILL NOT
RING
NO DIAL
TONE
NO CHARACTERS
ON DISPLAY

TROUBLESHOOTING

l
Check line cord and adapter.
l
Check Contrast setting.
l
Be sure your caller ID service is active.
l
Do not answer the phone before two rings.
l
If the problem continues, contact the telephone
company.
l
Be sure the ringer is not off.
l
There may be too many devices connected to the
phone line. Remove all other phones and see if this
phone will ring. If so, add devices back one by one
to find the problem unit.
l
Verify that the line cord is connected.
l
Verify that the line cord connection is correct and
tightly secured.
l
Check power adapter.
26

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