H3C XE 200 IP, Руководство по эксплуатации

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Operation Manual – Process Server Configuration
H3C XE 200/2000 IP PBX
Chapter 2 H.323 Overview
2-7
E ndpoint 1 GateKeeper 1 Endpoint 2
A RQ( 1)
A CF/A RJ(2)
S etup (3 )
Cal l pro ceed in g(4 )
A RQ( 5)
A CF/ARJ(6 )
A le rting (7)
Co nn ect(8)
RAS Messag es
Call S ig nal ling Messag es
Figure 2-4 Direct call signaling between endpoints
E n d po in t 1 G a t e K e e p e r 1 E n d p o in t 2
A R Q( 1)
A C F /A R J (2)
S et up (3 )
C al l pro c eed in g(6 )
A R Q ( 7)
A C F / AR J (8 )
A ler ti ng( 9)
C o nn ec t (1 1)
R A S M e s sa ge s
C al l S ig nal ling M es s ag es
Se t up (5)
C a ll pr oc ee din g( 4)
A ler ti ng( 10 )
C onn ec t (1 2)
Figure 2-5 Gatekeeper-routed call signaling
V. Call setup
When the calling endpoint receives the ACF message from the gatekeeper, it sends call
signaling to request a call. In a direct call signaling, for example, the calling endpoint
first sends a call setup signaling message (setup) to the called endpoint, requesting for
a connection.