Figure 2-16 Prestige Behind A Pabx - ZyXEL Communications Prestige 202 User Manual

Prestige 202 ISDN Router
PABX Outside Line Prefix
A PABX (Private Automatic Branch eXchange) generally requires you to dial a number (a single
digit in most cases) when you need an outside line. If your Prestige is connected to a PABX, enter
this number in PABX Outside Line Prefix, otherwise, leave it blank.
Please note that the PABX prefix is for calls initiated by the Prestige only. If you place a call from
a device on either A/B adapter, you must dial the prefix by hand.
PABX Number (with S/T Bus Number) for Loopback
Enter the S/T bus number if the Prestige is connected to an ISDN PABX. If this field is left as
blank then the ISDN loopback test will be skipped.
Outgoing Calling Party Number
If these fields are not blank, the Prestige 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 Prestige behind an ISDN PABX.

Figure 2-16 Prestige Behind a PABX

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Hardware Installation and Initial Setup