Ringing; A Line Rings But No Caller Is On The Line - Merlin 3070 Service And Maintenance Manual

A line rings but no caller is on the line. (The user attempts to answer a call but
Symptom:
loses it and receives dial tone on a different line.)
Possible Cause
User rocked the handset while lifting
it.
Symptom:
10-button voice terminals exhibit peculiar ringing and/or extra lights are lit.
Possible Cause
A brief ac power outage occurred.
TROUBLE ON ONE TELEPHONE
Recommended Action
Rocking the handset causes the voice terminal to
go off hook, on hook, then off hook again. Instruct
the user to lift the handset without rocking it to
either side.
Recommended Action
A brief ac power outage causes certain early
production 10-button voice terminals to exhibit
peculiar ringing. Extra lights also may be on.
Momentarily removing ac power from the voice
terminal will correct the problem. Do this by
unplugging the voice terminal cord at the modular
jack and plugging it in again.

Ringing

A1-3