Amplicomms BigTel 50 Alarm Plus User Manual page 48

Starting/Ending the automatic emergency call
The phone behaves as follows on starting the automatic emergency call:
1. The emergency phone loudspeaker is switched on. An acoustic
"emergency call active" signal is sounded for 15 sec.
2. You can then hear the dialling tone and the phone numbers assigned
to the M1, M2 and M3 buttons are automatically dialled, in succession, at
intervals of approx. 60 seconds. The outgoing alert message is played in
a continuous cycle.
3. The person answering the call immediately hears this alert message.
The person taking the call stops the outgoing alert message by pressing
"0". You can then converse for 3 minutes. Handsfree mode remains
active on the phone making the emergency call during this time.
4. When the 3 minutes have elapsed, the call is disconnected. An
attempt begins again to dial the phone numbers assigned to buttons M1,
M2 and M3 as described above.
5. If the call is disconnected or the receiver is placed on-hook before the
3 minutes have elapsed, an attempt is made to dial the emergency num-
bers. The emergency procedure won't be stop unless 3 numbers have
been dialed out or press the button on the emergency call unit again or
press M1, M2 or M3 for 5 seconds.
Note: To end an emergency call, press the button on the emergency
call unit again or press M1, M2 or M3 for 5 seconds.
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