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Making Calls
3.1.14 Blocked/Unblocked Call Numbers
Your telephone can be blocked from dialling all or selected external call numbers.
Emergency call numbers (in Germany 110 and 112) can be entered in a special list,
irrespective of your trunk line access rights, and thus always be dialled. Consult
your system administrator for details.
3.1.15 Keypad Dialling
A number of European network operators need the keypad protocol in order to set
features. Depending on your system configuration your telephone could be set to
keypad dialling during the connection state. If this is not the case, you must switch
your telephone over to the keypad protocol – before dialling – 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 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.
3.1.16 Least Cost Routing (LCR)
Whenever you make an external call, your system automatically uses LCR to set up
a connection to a network operator (provider) that has been selected by the
system administrator. If you do not wish to use this preferred connection and want
to select a network operator yourself for a call (call-by-call), then before making
the call, select LCR off (see the
Idle State starting on page 38). This is only necessary if LCR has been configured for
you in the OpenCom 100 / Aastra 800. Consult your system administrator about
this.
Note: The setting is deleted again once the connection is
terminated!
LCR off
Note: Baby call and external call forwarding are not auto-
matically routed via preferred connections. In this case, if you
do not wish to use the standard network operator, you can
menu in the section "Selection" Menu in the
General Information
33
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