IT & MCIS

DEFINITION OF STANDARD:
Integrated Services Digital Network is an International telecommunications standard for providing a digital service through the dial-up telephone network. Two types of ISDN service is offered: basic rate interface and primary rate interface. Basic rate interface (BRI) provides two bearer channels of 64-Kbs each, plus a 16-Kbs signaling channel. The primary rate interface (PRI) provides 23 bearer channels, plus a 64-Kps signaling channel. Any combination of voice and data can be carried over the B channels.

REVISION DATE: June 18, 2003
EFFECTIVE DATE: October 18, 2000
RESPONSIBLE CONTACT: Bill Rutledge, Communications Consultant Communications and Network Systems O4 Parking Structure #2
University of Kentucky brutled@email.uky.edu
859-257-1304

Recommended Standards:
National ISDN 1

Recommended Product(s):
CNS provides ISDN services to all customer/vendor-provided equipment such as video conferencing equipment and data network backup. See the paragraph on Connectivity in: www.uky.edu/IS/Standards/1100.html

CNS Consulting assists University departments in the evaluation and design of communications products and solutions to fit your needs or applications.

Justification:
Voicemail helps to reduce departmental operating costs.. The voice mail system can take messages or redirect calls without the assistance of a live attendant.

Technical Considerations:
Give ample lead-time when ordering ISDN services. Sometimes, vendor ISDN devices can be difficult to sync-up with the campus ISDN network.