Telephoning
General Information
33
digits specified by the network operator. These are transmitted directly to the
exchange and evaluated there. You usually get an announcement as an acknowl-
edgement. Consult your system administrator if you have questions concerning
this function.
A*12
This switches your telephone over to the keypad protocol. You can now enter the
code digits for the appropriate keypad.
Note:
The setting is deleted again when the connection is
terminated!
3.1.15 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 adminis-
trator. If you do not wish to use this preferred connection and want to select a
network operator yourself for each call (i. e. on a call-by-call basis), then before
making the call, select
LCR off
(see also the
LCR off
menu in the section entitled
“Selection” Menu in the Idle State
starting on page 36). This is only necessary if LCR has been configured for you in
the OpenCom 100. Consult your system administrator about this.
Least Cost Routing (LCR) can be evaluated with call forwarding to external
numbers, provided your system administrator has configured LCR and its appli-
cation in the OpenCom 100 correspondingly. Ask your administrator for the con-
figuration applicable to you.
Note:
Baby call and external call forwarding are not auto-
matically routed via preferred connections. In this case, if the
network operator you wish to use is not the default operator,
you must prefix the desired telephone number with the op-
erator’s code.
3.1.16 Transmission of Call Numbers
With ISDN there are different features which allow or prevent the transmission of
(external) call numbers between subscribers.
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