Operation Manual

Configuring ISDN Interfaces 97
7. If your server/router PC is connected to the public ISDN via
a PBX, you have to enter
7a. the PBX Extension to reach the server/router PC.
This parameter specifies the concrete extension of the PBX
your ISDN-Controller is connected to. It must be dialed in
addition to the ISDN subscriber number of the PBX to reach
the ISDN-Controller in your router.
7b. your PBX Outside Line Access .
This is the number you have to dial to get access to the
public ISDN within a PBX.
The most common PBX Outside Line Access digit is "0".
8. Enter the MSN (Multiple Subscriber Number), if:
- The server/router PC is connected to an ISDN access with the
D channel protocols DSS1, MDSS1, VN3, CT1, NI1, 5ESS or
AUSTEL, and
- You have to use MSNs to address the interfaces of your ISDN-
Controller and applied for MSNs at your local PTT.
If this applies to your situation, configure the MSN, to which the
interface of ISDN-Controller should listen, as follows:
- MSNs with non-sequential numbers (8885951, 774840, etc.)
In this case, enter this number in the ISDN Number (see above)
and the MSN field.
Example: ISDN Number: 885951, MSN: 885951
- MSNs where only the final digits differ (885951, 885952,
etc.):
In this case, the complete entry for ISDN Number (see above)
contains the whole number, and the final digits are repeated for
MSN.
Example: ISDN Number: 885951, MSN: 51.
9. Enter the EAZ (Endgeräteauswahlziffer), if
- The router PC is connected to a 1TR6 ISDN access, and
- you have to use EAZs for one of the following reasons: a
second piece of terminal equipment using the same Service