ADTRAN ISU 128 - Manual (Page 24)

61202.029L2-1 ISU 128 User Manual 9
Chapter 2
ISDN Ordering Codes (IOCs)
ORDERING ISDN USING IOCS
The development of ISDN ordering codes (IOCs) simplifies the process of or-
dering ISDN service. The ISDN Solutions Group, a consortium of ISDN equip-
ment 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. Of
these, four are recommended for operation of the ISU 128. After reviewing
the following list, order ISDN lines from the local service provider. Request
the appropriate IOC for your application. They are described in detail in this
chapter.
In some areas, ISDN tariffs may warrant the use of ordering codes with less
features. For example, in a particular region, there may be additional monthly
expense associated with having voice service on each B channel. If you have a
data only application,
Capability R (previously Generic Data I ) may be more
cost-effective.
If these are not available from your service provider or you would like more
information regarding ordering ISDN see the ADTRAN document
Ordering
ISDN Service User Guide part number 60000.015-8 or contact your telephone
company for alternative line configurations. The Ordering ISDN Service User
Guide is available on the ADTRAN home page at http://www.adtran.com or
by calling ADTRAN.