Make outgoing calls with the L420 SwyxPhone using fake numbers (kb2465)

The information in this article applies to:

  • SwyxWare v4.20
  • SwyxPhone L420

[ Summary | Information ]


This artice describes how to place an outgoing call with the L420 SwyxPhone using a so called fake number. This might be useful if you want to use a group number to be signalled for outgoing calls.


To use the fake number for outgoing calls with the L420 SwyxPhone please follow these instructions:

  • Please go into the following menu at the L420 SwyxPhone:
    8-Configuration/3-Lines/Line 0x/2-Outgoing Calls/
  • At this point, please press the keys + and 9 at the phone in a quick manner. You can now edit this number.
  • To finish, please press Ok.

Outgoing calls with this line will now be made using the selected extension.


You are allowed to enter extensions from your extension range or a valid MSN only ! In all other cases your telephone provider will presumingly ignore this setting and signal your subscriber number + 0 or your first MSN.



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