Netopia 430 s Reference Guide

If your ISDN line is controlled by a DMS-100 switch using National 
ISDN-1, and your director y numbers are given as (415)234-5678 
and (415)234-5679, your SPIDs are 4152345678010 and 
4152345679020. Alternately, your SPIDs can be 
41523456780100 and 41523456790200.

The Add Connection Profile screen in the WAN Setup (Advanced 
Configuration) now contains the item Optional Second Number. This 
item should be filled in when the remote network (the network router 
being called) has a separate director y number for each B-channel.

In general, if the remote network has an ISDN line with an AT&T 
5ESS



 switch, only one director y number is needed. However, the 

remote network may be set up to require incoming calls to use 
separate director y numbers for each B-channel. In this case, enter 
the second director y number in the Optional Second Number item.

If the remote network has an ISDN line with a DMS-100 switch, it 
should have one director y number for each B-channel. Both 
director y numbers are required by the Netopia ISDN Router to make 
a connection to that network using two B-channels. In this case, 
enter the second director y number in the Optional Second Number 
item. If only one director y number is available in this case, only one 
B-channel can be used when connecting to that network.