Polycom MGC Administrator, Руководство администратора

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7
Configuring the Gateway
Overview
The GW-25/GW-45 Gateway is a network element within the H.320 and
H.323 communications network. It provides connectivity across different
physical networks and translates multiple protocols for point-to-point rich
media communications.
Figure 7-1: Typical Single Gateway Configuration
The GW-25/GW-45 can be connected to both H.320 (ISDN) and H.323 (IP)
networks. The gateway configuration supports H.323-to-H.320, H.320-to-
H.323 and H.323-to-H.323 point-to-point calls.
The GW-25/GW-45 supports the widest range of video and audio
algorithms. It allows sites with different frame rates, connection speeds,
audio algorithms, video resolutions and network protocols to transparently
connect with one another. The transcoding abilities of the GW-25/GW-45
allow each endpoint to connect at its optimal capabilities.
The GW-25/GW-45 technology and system architecture are the same as
those used in the MGC-50/MGC-100. The gateway can be configured on
either an 8-slot (GW-25) or 16-slot (GW-45) chassis in a standalone gateway