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Overview
555-233-001 — Issue 2 — November 2000
7 Computer Telephony Integration
Computer Telephony Integration (CTI) is the linking of telephone communication systems to personal
computers, which can increase productivity and customer satisfaction through the exchange of information
between the PC and the telephone. CTI applications integrate data processing, data communications, and voice
communications.
DEFINITY ONE supports the following types of CTI applications.
• Server-based solutions that require the Avaya CentreVu Telephony server, the co-
resident DEFINITY LAN Gateway (DLG) function (which resides on the
DEFINITY ONE Processor Board TN795) and connectivity to DLG via the
TN795 Processor Board, or optionally via the TN799 C-LAN board.
• DEFINITY IP Softphone, enables users to control telephone calls (both incoming
and outgoing) directly from a personal computer.
• www.messenger provides quick and easy access to your telephone, fax, and text
messages through your web browser.
Server-Based solutions
DEFINITY ONE supports third-party CTI applications via ASAI and TCP/IP links.
These CTI links are supported on DEFINITY ONE via the DEFINITY LAN Gateway
functionality which is co-resident on the DEFINITY ONE Processor board (TN795).
The co-resident DEFINITY LAN Gateway supports one ASAI link. The ASAI link is
normally routed from the CTI Server (an external Windows NT or Windows 2000
server) running CentreVu and the TN795 Processor card via TCP/IP.
For security reasons, the link may be routed from the CTI Server to a C-LAN board
(TN799) in the DEFINITY ONE system. The C-LAN board requires use of one
additional slot in the DEFINITY ONE cabinet. The maximum message rate over the
ASAI link is 100 messages per second full duplex, regardless of whether the link is
going directly to the TN795 Processor board or being routed via a TN799 C-LAN
board.
ASAI links from CentreVu CT to DEFINITY ONE via the TN80153 MAPD board
are not supported.