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. WIKIMERIONET
Merion Mertics , ,

CRM

H.323

ITU

3

IP H.323 , , .

, , H.323?

. , .

 H.323

(SETUP) RAS (Registration, Admission, Status) H.225.0 .

1 RAS ARQ (Admission Request), . ACF (Admission Confirmation), TCP .

, 1 TCP-, , H.225.0, SETUP 2. , SETUP, H.225.0, VoIP Q.931, ISDN.

SETUP IP , alias, . Alias e-mail , , , , : alex@merionet.ru 192.168.1.32@merionet.ru .

2 CALL PROCEEDING, , . , 2 , ARQ ACF. , H.225 (Q.931 ) 2 ALERTING. .


H.245, FACILITY H.225.0.

H.245 :

  1. (Master/Slave Determination).
  2. . - (Master) .

  3. (Terminal Capability Set)
  4. . .

  5. (Open Logical Channel)
  6. RTP .

2 , CONNECT. .

RTP/RTCP .

2 , CloseLogicalChannel EndSessionCommand, CLC ACK ESC ACK 1. H.225.0 RELEASE COMPLETE. , RAS, DRQ Disenagae Request. Disengage Confirmation.

H.323 IP , VoIP.