Operator's Manual
B-17
Oper
ati
o
n
Taking an existing call
The parking/changing over function on the PTMP connection allows you to park an external
conversation that you are currently making using a piece of ISDN equipment (an ISDN tel-
ephone or your PBX) and to transfer it to another piece of ISDN equipment that you are also
running on your PTMP connection (NT/external S
0
bus).
Using the PBX, you can take a call that was parked by another piece of ISDN equipment
(e.g. an ISDN telephone on the NT/an external S
0
bus).
In the same way, you can use your PBX to park an ongoing external conversation that
another ISDN telephone on your PTMP connection then takes over. The PBX can, of course,
also take the parked call itself. The transfer must take place within the specified time of
approximately three minutes.
Parking a conversation:
b
f
n
f
6
g
Internal
dial tone
Internal calling number (e.g. 33) of the telephone
that is making the call to be picked up.
Engaged
tone
Picked-up call
h
To pick up external calls
씮
outgoing access is necessary.
Before punching in the suffix digit,
6
, please wait three seconds
If you are already talking to another subscriber, pick-up is not possible.
1. 23
Parking and Transferring on a PTMP Connection (external S
0
port)
1. 23. 1
Using the PBX to park an ongoing external conversation
g
F
68
f
a
External conversation
[Omit with pulse dialling]
Acknowledgement tone
h
After approximately three seconds, the acknowledgement tone changes to an
engaged tone; you should not consider this to be a failed attempt at parking a call.
Instead of the acknowledgement tone, the engaged tone appears immediately
씮
park-
ing has failed and after a few seconds the system reconnects you with your calling partner.
In this case, it may well be that your exchange does not support the Parking/changing over
on the bus feature.
Some ISDN telephones are not capable of taking a call that was parked without code dig-
its. Using a programming function, you can tell the PBX always to park external calls with
code digits (see Chapter Setting the Code Digits for Parking on the Bus on page I-44 in the
Installation and Configuration Manual).
In the case of ETS-4308 I with two external S
0
ports
씮
selectively initiate the external con-
versation via the 1st S
0
port. You cannot park an ongoing external conversation on the
2nd S
0
port.