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1.4Information flow diagrams
Information flow diagrams for user-to-user signalling service call
setup, service usage and call release are shown in Figures 1-2/Q.87
to 1-10/Q.87.
Figure 1-2/Q.87 shows a successful use of UUS Service 1 in a point-to-
point configuration;
Figure 1-3/Q.87 shows a successful use of UUS Service 1 in a point-to-
multipoint configuration;
Figure 1-4/Q.87 shows a successful use of UUS Service 2 in a point-to-
point configuration;
Figure 1-5/Q.87 shows an unsuccessful use of UUS Service 2 in a point-
to-multipoint configuration;
Figure 1-6/Q.87 shows a successful use of UUS Service 3 requested and
essential;
Figure 1-7/Q.87 shows a successful use of UUS Service 3 requested and
not essential;
Figure 1-8/Q.87 shows a successful use of UUS Service 3 requested
during the active phase;
Figure 1-9/Q.87 shows a successful use of UUS Service 3 requested
during the active phase by the called party;
Figure 1-10/Q.87 shows a UUS service requested in a point-to-multipoint
configuration.