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Call processing
126 Avaya Application Solutions IP Telephony Deployment Guide
IP Port Network / Media Gateway connectivity
IP PNC allows S8700-series Servers and G650 Media Gateways to be connected over IP
networks. Avaya Communication Manager uses a proprietary method to package 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, G350, and G250 Media Gateways. H.248 defines a
framework of call control signaling between the intelligent 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.