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Chapter 4 - Setting Up Conferences
4-92
Advanced Dial-In
In advanced dial-in, one IP Network Service is defined for all the IP cards
installed in the system. This IP Network Service is registered in the
gatekeeper using a prefix (which is defined in the E.164 format, that is, using
digits 0-9, * and #). This IP Network Service Prefix is also entered in the IP
Network Service Properties - H.323 dialog box and is given to the participants
as the dial-in number.
Figure 4-7: Advanced Dial-in H.323 Participant
When the participants dial in, the call arrives at the gatekeeper. The
gatekeeper locates the MCU and tries to allocate a port from the first free IP
card. If the resource is available, the participant is connected and routed to the
appropriate conference according to the IP address/alias as defined in the
Participant Properties dialog box. If the resource is unavailable from the first
IP card, the system will look for the port on any available IP cards, and
allocate the resources automatically, according to their availability. If no port
is available, the connection will be rejected.
In this mode, the system is enabled to automatically allocate resources to run
conferences, saving you time and effort in scheduling conferences.
Endpoint IP:
196.123.38.129
Alias: 259
Endpoint IP:
196.123.38.146
Alias: 256
Endpoint
dials 45
Dials 148
Gatekeeper
Network
Service
Prefix=45
Endpoint IP:
172.123.12.89
Alias: 268
MCU
LAN
Endpoint
dials 45
Conference1
IP card A
Conference2
IP card B
Conference1
Participant 1 alias: 256
Participant 2 alias: 259
Participant 3 alias: 378
Conference2
Participant 1 alias: 268
Participant 2 alias: 281
Participant 3 alias: 224