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Siemens 70isdn User Manual

Page 74

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Convenient and secure telephone communication

62

kap09.fm5

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

20.5.99

Reactivate DTMF signalling

Distinction between DTMF and keypad signalling

The following table illustrates the difference in the signals

produced when the keys on the keypad are pressed in

DTMF signalling mode (➔ page 61) and keypad signalling

mode (➔ page 61). The table takes into account the vari-

ous system configurations which support Profiset 70isdn

operation.

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

DTMF signals: off

Type of signalling with

system configuration:

Keys transmit:

DTMF/keypad number

feature keys:

DTMF signalling with

main station

DTMF signals

Character string in DTMF

Keypad signalling with

main station

Keypad information

element (IE)

Character string as keypad

information elements (IE)

DTMF signalling with

CENTREX

DTMF signals

Character string as keypad

information elements (IE)

Keypad signalling with

CENTREX

Keypad information

element (IE)

Character string as keypad

information elements (IE)

DTMF signalling with

S

0

extension*

DTMF signals plus called

party number (IE)

Character string as DTMF

signals plus called party

number (IE)

Keypad signalling with

S

0

extension*

Called party number (IE) only

Character string as called

party number only

DTMF signalling with

point-to-point configuration

DTMF signals

Character string in DTMF

Keypad-signalling with

point-to-point configuration

Keypad information

element (IE)

Character string as keypad

information elements (IE)

* "S

0

extension" refers to Siemens 8818/A6 systems and the Octopus systems available from

Deutsche Telekom AG.