Ordering Isdn; Figure 1-1. Isu 512E Applications - ADTRAN ISU 512e Manual

Chapter 1. Understanding ISDN and the ISU 512e

Figure 1-1. ISU 512e Applications

ORDERING ISDN

ISDN is a complex service with many network options. Obtaining ser-
vice from the local telephone company and long distance providers
can be complicated.
In North America, the development of ISDN Ordering Codes (IOCs)
simplifies the process of ordering ISDN service. The ISDN Solutions
Group, a consortium of ISDN equipment vendors, service providers,
and Bellcore, established these codes to represent predetermined line
configurations for ISDN Basic Rate service for specific applications.
ADTRAN and Bellcore have registered and tested eight generic IOCs.
These IOCs are supported by all major local exchange carriers as well
as several independent carriers.
Capability S (previously Generic Data M) ordering code is recom-
mended for ISU 512e applications. It is the most feature-rich and sup-
ports most voice and data applications. The voice capability is not
61203086L1-1 ISU 512e User Manual 1-3