Philips D721 - Manual (Page 78)

6.3.2.5 Connection without dialling
A previously defined telephone number is dialled automatically about 5
seconds after you lift the handset. The telephone number is entered while
you activate this feature.
Initial state: dial tone
Steps:
No. Description Input Display
6.3.3 Emergency operation
The analog terminal cannot be used during emergency operation.
Acknowledgement tone
# 5 3 #
Input within
5 seconds after
lifting the handset
Deactivate connec-
tion without dialling or
Pos. acknowl. tone=on
Neg. acknowl. tone=off
* # 5 3 #
Input within
5 seconds after
lifting the handset
Check connection
without dialling or
Acknowledgement tone
* 5 3 *
Destination No.
#
Activate connection
without dialling 1
77