9
ISDN SERVICE ORDERING INFORMATION
ISDN Service Ordering Information for the CSU/DSU MS DBU With ISDN Dial
Backup
For CSU/DSU MS DBU ISDN applications, the following guide can be used
as an aid in ordering basic ISDN service from your local telephone company.
The CSU/DSU MS DBU ISDN includes NT1 and terminal-adapter functionality
and supports data rates up to 64 kbps.
R
EQUEST AN
ISDN B
ASIC
R
ATE
I
NTERFACE
(BRI)
LINE WITH THE FOLLOWING FEATURES
:
U-interface reference point
2B1Q line coding
1B+D Service (supports up to 64 kbps)
T
HE
CSU/DSU MS DBU 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