Troubleshooting - Cortelco 8015 Owner's Instruction Manual

Troubleshooting

Symptom
No operation
No dial tone
Nothing appears
on the display
Handset seems
to have very short
battery life
'
Caller s number
is not displayed
45
Check & Remedy
Check that the power adapter is properly connected.
Check that the telephone line cord is properly connected.
Check that the handset batteries are fully charged.
Check that the handset batteries are installed properly.
Check that the telephone line cord is properly connected.
Check that the power adapter is properly connected.
Check that the handset batteries are installed properly.
Check that the handset batteries are fully charged.
Check that the handset is on.
Check the charge contacts.
Consistently short battery life may indicate that replacement of the batteries is necessary.
Make sure the right batteries are used.
Make sure you have subscribed to a Caller ID service via your network provider.
The caller may have withheld their details.
Let the phone ring a couple of times as there may be a delay in receiving the Caller ID information.