Siemens SANTIS-ab - Manual (Page 17)

17
Clear Back Time Delay Switch
Command-No / Meaning
Parameter value Default
311 clear back time
delay
at a/b1-interface
0 = immediate
1 = 3 minutes 1
312 clear back time
delay
at a/b2-interface
0 = immediate
1 = 3 minutes 1
If you answer a phone call, you can hook on and the connection is
still available, if you hook off again within
3 minutes (the caller must not hook on). This feature is called
‘clear back time delay’ and can be suppressed by this command.
Restrictions for NT+2ab/CA restr. and Pairgain:
a/b1 via a/b1 only; a/b2 via a/b2 only.