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Program/Service
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503=Keypad dialing?
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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.
:
Select and confirm.
or
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 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 activ-
ities or remote operation (for example, toll fraud).
Using Other Functions
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