Siemens optiPoint 400 - Manual (Page 80)

Step by Step
Using Other Functions
80
Using functions in ISDN via code dial-
ing (keypad dialing)
If authorized (contact your service personnel), you can
set ISDN functions via code dialing in some countries.
Press the key. The LED lights up.
Confirm.
or
qidg
Enter the code.
o
Enter the number of the trunk you wish to use (contact
your service personnel).
o
Entering a code for required ISDN function (contact your
service personnel).
Program/Service
* 503=Keypad dialing?
Contact your network provider to find out which
ISDN functions can be code-controlled in your
country.
Siemens AG shall not be liable for damages/
costs which may be incurred by fraudulent activi-
ties or remote operation (e.g. toll fraud).