Siemens CX203isdn 사용자 설명서

SX303/353isdn / englisch / A31008-X353-B100-2-7619 / pabx.fm / 14.11.2005

The KEYPAD function allows you to control certain services by entering sequences of 

characters and digits.
The KEYPAD function must be set when connecting your Gigaset CX203/253isdn to an 

ISDN PABX or to a telephone exchange (e.g., Centrex) which uses the KEYPAD protocol 

for control. The digits/characters 0–9, *, # are sent as keypad information elements. 

Please inquire of your service provider about which information and codes you can 

transmit.
If your Gigaset CX203/253isdn is integrated in a Centrex system, the following 

performance features can be used.

You can switch between the settings Standard dial (factory setting), Auto keypad and 
Dial * and #

.

Standard dial 
Once Standard dial has been activated, * and # are not transmitted during dialling, and 

if * and # are entered it is not possible to switch to the keypad.
Auto keypad 
Once * or # has been entered, this setting automatically transfers ringing during dialling 

to the keypad. This automatic switchover is needed for giving commands to the 

exchange or PABX.
Dial * and # 
Once Dial * and # has been activated, the * and # characters are transmitted during 

dialling as commands to the exchange or PABX.
Regardless of the setting options above, after dialling or during the conversation, the 

phone switches automatically to tone dialling (DTMF), e.g. for remote control of an 

answering machine.

When you receive calls from other CENTREX 

subscribers, the caller's number and name are 

displayed on the screen.

The display key 

J

 is offered on Comfort 

handsets if new calls appear in the caller list. Calling 

up the caller list deletes the display key 

J

.

The CENTREX call is signalled acoustically like an 

internal call.