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DEFINITY Enterprise Communications Server Release 8.2
Overview
555-233-002
Issue 1
April 2000
System Overview
11
DEFINITY ECS Network Connections
■ ATM Circuit Emulation Service (ATM-CES) lets a DEFINITY ECS emulate an
ISDN-PRI trunk on an ATM facility. ATM-CES maximizes port network capacities by
consolidating trunking.
■ The ATM Trunk feature supports telephony and Wide-Area Network (WAN)
connectivity over ATM networks. ATM-WAN extends the PNC beyond a single ATM
switch. It allows for use of DEFINITY ECS applications over an ATM infrastructure
across locations. ATM-WAN consolidates communications traffic, allowing for
quicker and more efficient transport of voice, data, video, and mixed media
communications.
Typical Connections
Figure 6 shows typical DEFINITY ECS connections.
233002_1.book Page 11 Monday, February 21, 2000 8:28 AM