Sensaphone 1800 - Manual (Page 91)

Chapter 5: Communication Programming
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2. Press the MUTE key.
The 1800 will say “On” to indicate that the speaker mute is on. It
will say “Off ” to indicate when the speaker mute is off.
3. Repeat key sequence to change.
CALLBACK ACKNOWLEDGMENT
This is an optional feature that can be enabled using the keypad
(default=disabled). It allows an alarm to be acknowledged simply
by calling the unit and letting the line ring 10 times. When this
feature is enabled it will temporarily make the Rings Until Answer
set to 10 when an unacknowledged alarm exists. If you receive a
call via Voice or Pager and are unable to send touch-tones, then you
can call the unit back, let the line ring 10 times, and the unit will
answer and say “Alarm Acknowledged.”
NOTE: If TAD is also enabled, then the 1800 will answer on 1
ring and acknowledge the alarm.
To Enable the Callback Acknowledgment Feature:
1. Press SENSOR ON/OFF.
2. Press CODE.
The 1800 will say “On” to indicate that Callback Acknowledgment
is enabled. Repeat the key sequence to disable.