BACKGROUND MUSIC CONTROL:
When the Handset
is on-hook the
button is used to turn the Background Music on and off
by alternate depressions.
The volume of the Background Music is regulated by the volume control at each station.
POWER FAILURE:
During power failure the exchange lines are automatically switched through to preassigned
powerfail stations. In this condition incoming calls may be received or outgoing calls can be
originated, all other facilities are inoperative.
To answer an incoming call, lift the Handset
To place an outgoing call, lift the Handset
wait for exchange dial tone and dial the desired
number.
If a short interruption of the mains power occurs, the operation of the system will be interrupted
and all calls will be cut off.
In this case the red reset LED
LED) on the power supply will be on. Press the reset switch
switch) to extinguish the LED. Normal operation will resume if power is still available.
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