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. WIKIMERIONET
Merion Mertics , ,

CRM

H.323

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3

, VoIP H.323.

H.323 ITU-T (International Telecommunication Union - Telecommunications) 1996 , LAN (Local Area Network). , IP , WAN (Wide Are Network) .

H.323 , , , - - .

H.323

G.xxx/RTP/UDP/IP H.xx/RTP/UDP/IP, RTCP.

H.255 RAS (Registration, Admission, Status) .

H.245 , .

IP H.255.0, , Q.931, ISDN.

H.323 - :

-

H.323, - . , H.323, IP . IP , .

- (Gateway)

, H.323 , ISDN (Integrated Services Digital Network) PSTN (Public Switched Telephone Network). , H.323 (3G), H.324.

- (Gatekeeper)

, H.323. : , , , .

: direct routed gatekeeper routed

direct routed, (), RAS IP .

gatekeeper routed , .

, (zone), .

- (Multipoint Control Unit)

, - - H.323 . , - -, - -.

, , , . , H.323 , , .

 H.323

H.323, . , Q.931, H.323, ISDN.