Instruction manual

Networking and connectivity
555-233-767142 Issue 4 May 2003
Multiple location support for network regions
Multiple location support for network regions allows remote Avaya media
gateways connected to a central Avaya media server to retain:
■ Local user time
■ Local ARS public analysis tables for local trunking
■ automatic daylight savings time
■ Local touch tone receivers for IP communications devices, such as Avaya
IP telephones.
Communication Manager allows administrators to map locations to IP network
regions.
Network regions
Network regions provide the administrative foundation on which Communication
Manager features are allocated to IP endpoints. A network region is a collection of
IP endpoints and switch IP interfaces interconnected by an IP network.
Endpoints that share network regions typically represent users with common
interests. For example, a customer might have two separate small campuses in a
large metropolitan area, interconnected by a WAN, and both served by the same
server running Communication Manager. Communication Manager allows the
customer to define a network region for each campus, and associate each of their
C-LAN and IP media processor circuit packs with these regions.
Quality of Service (QoS)
By employing a variety of Quality of Service (QoS) features, Communication
Manager provides the best possible end-to-end audio experience when all or part
of the audio path is carried over packet facilities. “Best” in this context is defined
by the customer as represented by the system administrator, and represents a
trade-off between audio reproduction quality, audio path delay (latency), audio
loss, and network resource consumption.