When a call comes in with a "landline" telephone system, there is __________ volts AC on the telephone tip and ring pair.
A) 50
B) 60
C) 90
D) 120

Question

Quizplus · Accepted Answer

When a call comes in on a "landline" telephone system, there is typically 90 volts AC on the telephone tip and ring pair to signal an incoming call. This voltage is used to ring the telephone's bell or activate the ringer circuit in more modern devices.

When a Call Comes in with a "Landline" Telephone System