Avaya Application Solutions
20 Avaya Application Solutions IP Telephony Deployment Guide
● Avaya DEFINITY Server R
● Avaya DEFINITY Server SI
● Avaya DEFINITY Server CSI
These servers run on the Oryx/Pecos proprietary operating system, and function in the same
way as the servers in Figure 2:
Communication Manager traffic flow on page 18. These servers
fit into Avaya CMC1, SCC1, and MCC1 Media Gateways.
The focus of this document is network design incorporating the newer Communication Manager
platforms. Therefore, the DEFINITY Servers are only discussed briefly here.
Avaya Media Gateways
An Avaya Media Gateway supports both bearer traffic and signaling traffic that is routed
between packet-switched networks and circuit-switched networks. Communication Manager
running on Avaya servers controls voice and signaling over a variety of stackable and modular
Media Gateways:
● Avaya G150 Media Gateway
● Avaya G250 Media Gateway
● Avaya G350 Media Gateway
● Avaya G450 Media Gateway
● Avaya G650 Media Gateway
● Avaya G700 Media Gateway
● Avaya G860 High Density Media Gateway
● Avaya CMC1 Media Gateway
● Avaya SCC1 Media Gateway
● Avaya MCC1 Media Gateway
● MultiTech MultiVoIP Gateway
● Avaya IG550 Integrated Gateway
The Media Gateways contain the network and the endpoint interfaces, as well as call
classification, announcement boards, and so on. Through these interfaces, Communication
Manager performs gateway/gatekeeper functions. For more information on the Media
Gateways, see
Small to mid-size enterprise on page 37 and Mid-market to large enterprise on
page 79.
Avaya Integrated Management
Avaya Integrated Management is systems-management software for managing converged
voice and data networks.
