User guide

28
General Information Telephoning
Redialling
The last telephone numbers you
dialled are stored in the redial list
(with the most recent entry at the
top). If a telephone number is also
stored in the OpenCom 100 tele-
phone book, you will see the name.
Telephone Lock
You can switch the telephone lock
on or off using the Protection - Tele-
phone lock menu after entering
your PIN. Switching on the tele-
phone lock changes dialling rights.
You may no longer be able to make
external calls or only make them to a
limited extent.
Blocked/Unblocked Call
Numbers
Your telephone can be blocked from
dialling all or selected external call
numbers. Emergency numbers (e. g.
in Germany 110/112) can be entered
in a special list, irrespective of your
trunk line access rights, and thus al-
ways 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 (in Germany, for
example, for the “Completion of Call
on No Reply” (CCNR) feature). De-
pending on your system configura-
tion your telephone could be set to
keypad dialling during the connec-
tion state. If this is not the case, you
must switch your telephone over to
the keypad protocol – before dial-
ling – 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. Consult your sys-
tem administrator if you have ques-
tions concerning this function.
A*12
This switches your telephone over to
the keypad protocol. You can now
enter the code digits for the appro-
priate keypad.
Note: The setting is deleted again
when the connection is terminated!
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
(see also the LCR off menu in the
section entitled “Selection” Menu in