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Glossary
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S8100 Installation and Upgrades 395
November 2003
Integrated Services Digital Network (ISDN)
A public or private network that provides end-to-end digital communications for every service to
which users have access by a limited set of standard multipurpose user-network interfaces defined by
the CCITT. Through internationally accepted standard interfaces, ISDN provides digital circuit-
switched or packet-switched communications within the network and links to other ISDNs to provide
national and international digital communications. See also, Integrated Services Digital Network
Basic Rate Interface (ISDN-BRI) and Integrated Services Digital Network Primary Rate Interface
(ISDN-PRI).
Integrated Services Digital Network Basic Rate Interface (ISDN-BRI)
The interface between a communications system and terminal that includes two 64-kbps B channels
for transmitting voice or data and one 16-kbps D channel for transmitting associated B-channel call
control and out-of-band signaling information. ISDN-BRI also includes 48 kbps for transmitting
framing and D-channel contention information, for a total interface speed of 192 kbps. ISDN-BRI
serves ISDN terminals and digital terminals fitted with ISDN terminal adapters. See also, Integrated
Services Digital Network (ISDN) and Integrated Services Digital Network Primary Rate Interface
(ISDN-PRI).
Integrated Services Digital Network Primary Rate Interface (ISDN-PRI)
The interface between multiple communications systems that in North America includes 24 64-kbps
channels, corresponding to the North American digital signal level-1 (DS1) standard rate of
1.544 Mbps. The most common arrangement of channels in ISDN-PRI is 23 64-kbps B channels for
transmitting voice and data and 1 64-kbps D channel for transmitting associated B-channel call
control and out-of-band signaling information. With nonfacility-associated signaling (NFAS), ISDN-
PRI can include 24 B channels and no D channel. See also, Integrated Services Digital Network
(ISDN) and Integrated Services Digital Network Basic Rate Interface (ISDN-BRI).
INTUITY AUDIX
The INTUITY AUDIX application resides on S8100 with the CornerStone platform to provide
subscribers with messaging capabilities, including call-answering and voice-mailbox services.
IINTUITY Message Manager
A Windows-based software product that allows INTUITY AUDIX users to receive, store, and send
their voice/fax messages from a PC. The software also enables users to create and send multimedia
messages that include voice, fax, text, and file attachment components.
ISDN
See Integrated Services Digital Network (ISDN)
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LAC
See Lucent Access Control (LAC)
on page 396
LED
See light-emitting diode (LED)
on page 396.
license file
Encrypted file that contains software category, release, feature and capacity RTUs, and the hardware
serial number the license is tied to for a specific S8100.
License-Normal mode in DEFINITY
A license is properly installed and contains the correct serial number that matches the processor with
purchased features (RTUs).