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29
Making Calls
General Functions
activated in addition to your hand-
set.
Calling via the Handset
To switch open listening on/off,
press the hands-free key
. To
switch to hands-free mode (only on
the OpenPhone 63 and 65), press
and hold down the hands-free key
and replace the handset.
Initiating a Hands-Free Call (only
on the OpenPhone 63 and 65)
Instead of lifting the handset, press
the hands-free key
. End the
call by pressing the hands-free key
again.
Blocked/Unblocked
Telephone Numbers
Note:
Your telephone can be
blocked from dialling all or selected
external numbers. Emergency num-
bers can be entered in a special list, ir-
respective of your external line access
rights, and thus always be dialled.
Consult your system administrator for
details.
Keypad Dialling
A number of European network op-
erators need the Keypad Protocol in
order to set features, e.g. call diver-
sion. (This does not apply to Ger-
many.) For this purpose, you must
switch over your terminal (before di-
alling) and enter the code digits
specified by the network operator.
These are transmitted directly to the
exchange and evaluated there. You
usually get an announcement as an
acknowledgement.
H
Lift the handset and press the star
key and the digits
1
and
2
. This
switches your telephone over to the
keypad protocol. You can now enter
the code digits for the appropriate
keypad.
Least Cost Routing (LCR)
Whenever you make an external call,
your system automatically uses LCR
to set up a connection to a network
operator that has been selected by
the system administrator. If you do
not wish to use this preferred con-
nection and want to select a net-
work operator yourself for each call
(i.e. on a call-by-call basis), then be-
fore making the call, select
LCR off
from one of the Menu-
Cards described in the section enti-
tled
MenuCard “Selection” in the Idle
This is only necessary if LCR has been
configured for you in the
OpenCom 100. Consult your system
administrator about this.
Note:
Baby call and external call di-
version are not automatically
switched via preferred connections. In
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