Operator's Manual
B-11
Oper
ati
o
n
If you are using your PBX in a two-family house, you can use the following function to settle
the charges separately. Both families initiate external calls only by means of the S
0
port that
they pay for. Incoming calls, on the other hand, arrive on the line that is free at any one time
to make possible higher availability.
Selectively making calls via an S
0
port:
If all the lines (1st and 2nd B channels of the available external S
0
ports) are engaged, you
hear the engaged tone after punching in the access digit. You can now reserve a line so that
the PBX informs you immediately when one is free.
Reserving the line for an external call
Each party has his or her own personal password and a special private outgoing access that
you can set independently of the normal (business) access. When you initiate private calls
1. 12
Using a directed S
0
port (with ETS-4308 I with two external S
0
ports only)
b
f
91
f
r
g
Internal dial
tone
Access digits for the 1st S
0
port
External dial
tone
External calling
number
Call
or
92
Access digits for the 2nd S
0
port
h
Engaged tone
씮
the selected S
0
port is engaged or the necessary outgoing access
is not available
If you only ever want to access one external S
0
port from your telephone, do not set out-
going access on this telephone for the other S
0
port. You then only need to punch in the
access digit
0
.
1. 13
Reserving the line for the next external call
b
f
0
f
2
f
a
Internal dial tone
Access digit
Engaged tone
Acknowledgement Tone
씮
c
b
f
r
g
As soon as the line is free
External dial tone
External calling number
Call
h
Punch in the abbreviated dialling number
씮
After lifting the handset of the ringing
telephone, press the
*
key or replace the handset for at least one second if there is no
*
key on your phone or it is not working (pulse dialling telephones/many ISDN telephones).
With ISDN telephones, you cannot dial after lifting the handset of the ringing telephone
씮
replace the handset and then lift it immediately – now dial again (including the access digit!)
1. 14
Make a private external conversation