Introduction
I
I - 8
You may connect all approved analog
terminals to the analog parts of your
telephone system that you are also
permitted to operate on the public
telecommunication network. These may be
normal telephones (a/b telephones),
answering machines, group 2 and 3 fax
machines and analog modems, for instance.
The dialling method employed by the
analog terminals may consist of the pulse
dialling method or of the dual tone
multifrequency method (DTMF). DTMF is the
faster dialling method. The telephone
system detects the respective dialling
method automatically.
From an analog terminal, you can reach any
internal user free of charge by dialling the
appropriate internal phone number. You
reach an external subscriber after seizing a
dial-up line (B channel) by dialling the
exchange code
0
and the external phone
number.
If you set "automatic exchange line seizure"
for your telephone, you must press the
R
key (hash key) before the internal phone
number. Internal dialling is not possible on
telephones, particularly telephones using the
pulse dialling method, that do not have a
R
key or which do not support these
functions.
You operate the functions of the telephone
system by pressing the
S
key (star key) and
by dialling a code digit. On telephones,
particularly telephones that use the pulse
dialling method that do not have a
S
key or
which do not support these functions, you
must press the digits
99
instead of the
S
key.
Please note: for the "inquiry" function,
standard analog telephones using DTMF
must have a signal key (inquiry key
r
)
with the flash function.
Flash time- AS 140 to AS 191: 70...120 ms
AS 31 ST, AS 32: 50 ... 150 ms
This instruction manual always specifies the
operating steps for standard analog tel-
ephones set to DTMF. On standard analog
telephones set to pulse dialling, you do not
need to press the r key when making an
inquiry.
You can also use the functions of a standard
analog telephone (e.g. redial, abbreviated
dialling) in conjunction with your telephone
system. Please refer to the operating
instructions for the telephone concerned for
details of these functions.
Details of how to operate the functions of
your telephone system that you are able to
use from a standard analog telephone set to
DTMF are given in this instruction manual
and in the "short-form operating instruc-
tions for analog and ISDN terminals".
When operating your telephone system, pay
attention to its audible signals. You hear the
acknowledgement tone when you have
successfully completed a code digit proce-
dure. Otherwise, you will hear the error
tone.
AS 140, AS 141, AS 190, AS 191 - The
telephone system communicates the
counting pulses to analog terminals featur-
ing a display of connection charges (charge
pulses).
For data transfer via the analog ports, the
telephone system supports the V.34 stand-
ard (28800 bps).
For usage of a modem, it is recommended
to define the port for "automatic line
seizure" by Tk-Set. Otherwise it is imperative
to configure the modem to blind dialling
because most modems do not detect the
dial tone of a telephone system. On mo-
dems that operate with the Hayes command
set, blind dialling is set by means of the
X0..X4 parameters.
Important notes on using analog terminals