RoadRunner
U S E R S G U I D E
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Northern Telecomm DMS-100 BC-35 National ISDN 1
Request from the telephone companies a National ISDN 1 ISDN line with
2B1Q line code. Your ISDN line must be configured to allow circuit
switched data on both B-channels and signaling on the D-channel. The
telephone company should supply you with a separate telephone number
and SPID (Service Profile Identification) for each B-channel; however, it
will physically be only one ISDN line. Request that the Telephone
Company program your ISDN line with the following attributes:
B1 and B2 should be set as follows:
•
Set the circuit switch option to Yes; set the barrier restriction option
to no packet mode data (NOPMD) only (this tells the switch that
you require circuit switch ability on your B-channel, The bearer
restriction on your line means that you are not allowed packet data
on your B-channel.)
•
Set protocol to function version 2; (PVC2) (this tells the switch that
your CPE software is using National ISDN 1 protocol.)
•
Set the service profile identification (SPID) suffix to 1 (this tells the
switch that the digit following your telephone number will be 1. The
SPID format is
area code + 7 digit 1 + 00.
•
Set the Terminal Endpoint Identifier (TEI) to Dynamic (this tells the
switch that you can accept any TEI value from 64 to 126.)
•
Set Ring to Yes (this tells the switch to send an alerting message to your
CPE when there is an incoming call.)
•
Set the maximum keys to 10 (this tells the switch how much memory to
allocate for features.)
•
Set Key system (EKTS) option to No (this tells the switch that you are
not a key system.)
•
Place the lower layer compatibility option for data on the B-channels
(this tells the switch that your CPE may utilize the lower layer
compatibility information element for data on the B-channels.)
•
Place calling subaddress option for data on the B-channels (this tells the
switch that your CPE will send a subaddress.)
•
Place called subaddress option for data on the B-channels (this tells the
switch that your CPE can receive a subaddress.)
The Telephone Company will also need to know any additional data
features that you require on your ISDN lines.
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