Table of Contents
Advertisement
Call processing
Voice and multimedia networking
Intelligent networking and call routing
With Avaya Communication Manager, servers can use IP trunks across an IP network to
communicate between switches without the need for dedicated leased lines. With
Communication Manager, IP trunks can use Distributed Communication Services (DCS+) or
QSIG Services to extend feature transparency, centralized voice mail, centralized attendant
service, call center applications, and enhanced call routing across IP trunks.
IP Port Network / Media Gateway connectivity
IP PNC allows S8700 Media Servers and G650 Media Gateways to be connected over IP
networks. Avaya Communication Manager uses a proprietary method to package voice and
signaling messages over IP. This method allows deployment of communications systems
throughout a customer's data network.
H.248 Media Gateway control
Communication Manager uses the standards-based H.248 media gateway control protocol to
perform call control of Avaya G700 and G350 Media Gateways. H.248 defines a framework of
call control signaling between the intelligent Media Servers and multiple Media Gateways.
H.248 controls both IP (H.323) and non-IP connections into a media gateway. H.248 has been
extended by Avaya to also tunnel proprietary CCMS messages, to allow for enhanced call
handling.
Call Processing
Communication Manager gatekeepers
a gatekeeper is an H.323 entity on the network that provides address translation and controls
access to the network for H.323 endpoints. For Communication Manager platforms, these are
the Avaya S8300 and S8700 Media Servers through the C-LAN circuit packs. H.323 RAS
(Registration, Admission, and Status) Protocol messages are exchanged between them and the
IP endpoints for the endpoint registration.
92 Avaya Application Solutions IP Telephony Deployment Guide
Advertisement
Table of Contents
