Avaya Secure Remote Access Bedienungsanleitung PDF herunterladen (Seite 25)

Secure Remote Access Technical Solution Guide v1.0

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¾ Redundant Gatekeepers, Gateways and Client Proxies

¾ WAN Gateway survivability

¾ Uses Media Gateway 1000S (up to four per system) to provide local access to TDM

devices such as RAN/Music, Conference/Tones, analog/digital lines and analog/digital

trunks.

¾ Seamless network integration, simplified management, greater flexibility in deployment,

and reduced support costs

4.2.5.2.1.2 Nortel Communication Server 1000E

For enterprises that want to deploy a full IP PBX architecture supporting a large number of users,

the Communication Server 1000E can be deployed either at a single location or distributed

throughout a QoS managed IP network. The Communication Server 1000E introduces a

redundant call processor configuration.

¾ Scalable – supporting up to 15 000 IP clients per Call Server

¾ Redundant Call Servers, Gatekeepers, Gateways and Client Proxies

¾ Campus mirroring – known as split core, allows active and inactive Call Servers of the

system to be physically separated up to 25 miles (40 km) across a campus using a high-

speed link

¾ Geographic redundancy – allows for a redundant CS 1000 system to be deployed at a

remote location over any distance through the WAN to take over call processing if the

primary system fails or is the subject of a major disaster

¾ Uses Media Gateway 1000E (up to 30 per system) to provide local access to TDM

devices, to support Analog/Digital lines and to support Analog Trunks

¾ Uses Media Gateway 1000T to provide digital trunk PSTN access

4.2.5.2.1.3 Nortel Communication Server 1000M

The Communication Server 1000M transforms a Nortel Meridian 1 PBX into an IP PBX. Equipped

with Signaling Servers and running on Communication Server 1000 software, the Communication

Server 1000M functionally is no different than that of a CS 1000S/E. It is available in the following

configurations:

¾ Communication Server 1000M – Cabinet/Chassis (11C Cabinet/Chassis)

¾ Communication Server 1000M – Half-Group (51C)

¾ Communication Server 1000M – Single Group (61C)

¾ Communication Server 1000M – Multi-Group (81C)

The Communication Server 1000M supports:

¾ Scalable up to 15 000 IP clients per call server and 16 000 digital or analog clients

¾ Redundant Centralized Call Processor and Gateways

¾ Distributed Remote Gateways • Integrated Media Gateways for trunk and line application

interfaces

¾ Provides investment protection and allows for migration to IP Telephony

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Avaya Secure Remote Access Bedienungsanleitung Seite 25