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Prestige 202H User’s Guide
ISDN Setup 5-3
PABX Number (with S/T Bus Number) for Loopback
Enter the S/T bus number if the router 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 router 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 router behind an ISDN PABX.
Figure 5-2 Router Behind a PABX
Data Link Connection
There are two types of ISDN Data Link Connection namely: point-to-multipoint and point-to-point. When
you select point-to-multipoint, the TE1 value will be assigned by negotiation with the switch. When you
select point-to-point, the TE1 value will be assigned a unique value of 0.