ISDN Service Ordering Information for the ADTRAN DSU IV ESP With ISDN Dial
Backup
For ADTRAN DSU IV ESP ISDN applications, the following guide can be used as
an aid in ordering basic ISDN service from your local telephone company. The
ADTRAN DSU IV ESP ISDN includes NT1 and Terminal adapter functionality and
supports data rates up to 64 kbps.
Request an ISDN Basic Rate Interface (BRI) line with the following features:
U-interface reference point
2B1Q line coding
1B+D Service (supports up to 64 kbps)
The DSU IV ESP ISDN supports the following switch types and software
protocols:
AT&T 5ESS
Custom, 5E6 and later software, National ISDN-1
NT1 DMS-100
BCS-32 and later software (Pvc1), National ISDN-1 (Pvc2)
Siemens EWSD
National ISDN-1
Request that the ISDN line allocate one DYNAMIC Terminal Endpoint Identifier
(TEI) for the number.
For service offered from an AT&T 5ESS, request a point-to-point line with the
following features:
Feature:
Value
B1 Service:
On Demand (DMD)
Data Line Class:
Point-to-Point
Maximum B Channels:
1 (1B+D)
Circuit Switched Data (CSD) Bearer Channels:
Any
Number of CSD Calls:
1 (1B+D)
Terminal Type:
Type A
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