1
Operation
! 2#
!
You reach an external subscriber simply by dialling the corresponding phone number. The
telephone system automatically seizes a dial-up line (B-channel). To reach an internal user,
you must first press the internal key and post-dial the internal phone number.
You reach an external subscriber by dialling a code, e.g. "0", and the corresponding phone
number. You reach internal users simply by dialling their internal phone numbers.
The
Functions
section describes the convenience functions of the system telephone, re-
gardless of the external dialling variant.
You can only execute the functions marked * if the corresponding function key is defined
on your system telephone.
Automatic outside line seizure variant
+ %
" A
+ " A
- = " + A
- " +
=
A
%
" A -
A
%
" -
A
%
" A %
-
Feature
Displaying the
outside line
seizure variant
Automatic
outside line
seizure variant
"0" outside line
seizure variant
Functions
Internal call*
External call
Dialling with the
receiver on hook
Preparing
dialling and
dialling
Internal
forwarding with
announcement*
Internal forward-
ing without
announcement*
External
forwarding*
Telekommunikation
AS 141 plus, AS 191 plus
Inter-
nal key
or
Internal
key
External and internal
parties are connected
External
call
External and internal
parties are connected
External
call
External
call
Transfer
If you wish to communicate a specific multiple subscriber number of your
telephone system, press the corresponding MSN/external to seize an outside line
Brokering
The current variant
is displayed
Short-form operating instructions for system telephones ST 25
Internal
key
