Setting Up ISDN Service 2-13
3. Type of switch configuration used on your line. You must
receive this information from your telephone company to prop-
erly configure the Netopia ISDN Modem. The switch should be
one of the types supported by the Netopia ISDN Modem:
■AT&T 5ESS custom
■Northern Telecom DMS-100 or Siemens EWSD
■AT&T 5ESS
4. Directory numbers and SPID (service profile identifier) num-
bers. This information may be provided to you at a later time,
after your line has been set up. There may be one or two direc-
tory numbers, and one or two SPIDs. If the switch on your line
is an AT&T 5ESS custom point-to-point, you will receive no
SPIDs. It’s very important that you record this information accu-
rately.
Note: Regardless of the number of directory numbers and
SPIDs you receive, your line should be configured to allow the
Netopia ISDN Modem to use both B channels at once.
5. Circuit ID number. Your line has a unique physical address
called a circuit ID. You should obtain this number from your tele-
phone company and record it on the worksheet. The circuit
number can be useful for locating your line and its associated
circuit in case of a problem.
6. Long-distance company to be used on your ISDN line. When
the Netopia ISDN Modem makes long distance calls on your
ISDN line, you will be billed by a long distance telephone com-
pany. Make sure that you have the long distance company of
your choice.