Siemens 70isdn - Manual (Page 73)

Convenient and secure telephone communication
61
kap09.fm5 Profiset 70isdn, GB: A30853-X300-B501-3-7619 20.5.99
Sending info texts
Prerequisite: "info text" is permitted (➔ page 25).
Reading info texts
The LED for the "read info text" feature key flashes when
an info text is received (a programmed function key is a
prerequisite ➔ page 42). The message "Info" is displayed.
Prerequisite: "info text" is permitted (➔ page 25).
DTMF signalling
When a connection is set up, you can use the keypad to
transmit DTMF signals (tones in dual-tone multifrequen-
cy), e.g. to control an answering machine remotely.
Prerequisite: a connection is set up.
Keypad signalling
Instead of DTMF signalling, keypad information elements
(IE) can also be transmitted, e.g. in order to activate CEN-
TREX features (➔ page 63).
Since DTMF signalling is set by default for your tele-
phone, it must first be deactivated. To do this, program a
feature key (➔ page 42) with the function "24=DTMF sig-
nals off?".
Prerequisite: a line has been seized, a connection set up,
or an existing connection has not yet been cleared down.
> Service? ? > 4=feature keys ? > 19=send info text ?
<>
and ?
Select and confirm info text.
Press the "info text" key. The info text is displayed two
lines at a time. In the case of long directory numbers, the
info text is represented as a run-on text.
read info text
o
Enter the control digits. The digits entered appear on the
display preceded by "D:" for several seconds.
Press the programmed feature key "DTMF signals: off".
o
Enter control codes. The digits entered are shown on the
display.
DTMF signals: off