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Siemens 70isdn User Manual

Page 76

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Convenient and secure telephone communication

64

kap09.fm5

Profiset 70isdn, GB: A30853-X300-B501-3-7619

20.5.99

Internal calls
(country-specific version set to "Italian")

Transmitting keypad information elements (IE) via the keypad

In order to enter keypad information elements for CEN-

TREX features, CENTREX call processing must be set

(➔ page 17).

Because DTMF signalling is the default setting for Profiset

70isdn, this must first be deactivated. To do this, a key

must be programmed with the function "24=DTMF sig-

nals off?" (➔ page 42) .

Prerequisite: a line has been seized, a connection set up,

or an existing connection has not yet been cleared down.

Transmitting character strings as keypad information elements (IE) using a feature key

In order to transmit keypad information elements for CEN-

TREX features using feature keys, CENTREX call process-

ing must be set (➔ page 17).

The key which you wish to use for transmitting keypad in-

formation elements must be programmed with the re-

quired character string. This is achieved using the function

"26=DTMF/keypad number?" (➔ page 42).

Prerequisite: a line has been seized, a connection set up,

or an existing connection has not yet been cleared

down.

Tone (0.6 seconds) followed tone (0.2 seconds)

at 0.2-second intervals

Pause (4 seconds)

etc.

Press the programmed feature key "DTMF signals: off".

o

Enter keypad information elements. The digits entered

are shown on the display.

DTMF signals: off

Press the programmed feature key DTMF/keypad

number.

DTMF/keypad number