hình ảnh hệ thống H323.doc

hình ảnh hệ thống H323

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Composite Model

Figure 2 - 1

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PSTN ISDN

Qos Enabled

IP WAN

Headquarters with one or

more zones, and

local PSTN and MCU

access

Large Branch With one or more zones, local PSTN, and MCU

Access

H.323 to H.320 Gateway

Small Branch With no local gatekeeper, PSTN or MCU services, all services will be handled at Headquarters site

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H.320 Endpoints

MCU H.320 MCU

Gatekeeper Proxy

Gatekeeper Proxy

Gatekeeper

MCU

Gateway Video intrastructure

Campus single zone

Figure 2- 2

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Campus Backbone Bidg 2

Gatekeeper

MCU

Gateway Video intrastructure

Campus single zone

Figure 2- 2

Video intrastructure

Gatekeeper zone 1

MCU’S

Campus single zone

Figure 2- 2

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Campus Backbone Bidg 2

Gatekeeper

zone 2

Gateway

Campus single zone

Figure 2- 3

PSTN ISDN

Video intrastructure