ZyXEL 202H 91-003-194003B User Manual

Product codes
91-003-194003B
Page of 375
P-202H Plus v2 User’s Guide
171
Chapter 17 Menu 2 ISDN Setup
Please note that the PABX prefix is for calls initiated by the ZyXEL Device only. If you place 
a call from a device on either A/B adapter, you must dial the prefix by hand.
17.1.4  Outgoing Calling Party Number
If these fields are not blank, the ZyXEL Device will use these values as the calling party 
number for "ISDN Data", "A/B Adapter 1" and "A/B Adapter 2" outgoing calls. Otherwise, 
the individual entries for "ISDN Data", "A/B Adapter 1" and "A/B Adapter 2" will be used as 
the calling party number. You only need to fill in these fields if your switch or PABX requires 
a specific calling party number for outgoing calls, otherwise, leave them blank.
The following diagram illustrates the PABX Number (with S/T Bus Number) for Loopback 
and Outgoing Calling Party Number fields for a ZyXEL Device behind an ISDN PABX.
Figure 77   ZyXEL Device Behind a PABX
17.2  ISDN Setup
From the main menu, enter 2 to open menu 2.