ÿWPCL ûÿ2BJ|xÐ ` ÐÐÌÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿH øÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÌÐÐ °°°è ÐÑ Âx„|ü@Ž ÑÐ Å°6Ø'°6Ø'Å Ð1.4ÂàHÂÓÓÃÃInformation flow diagramsÄÄÆÆ Ð ° ÐÁHÁInformation 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. Ð Ð ÐÂHHÂFigure 1©2/Q.87 shows a successful use of UUS Service 1 in a point©to© point configuration;ÆÆ Ð ` Ð Ð Ð ÐÂHHÂFigure 1©3/Q.87 shows a successful use of UUS Service 1 in a point©to© multipoint configuration;ÆÆ Ð ` Ð Ð Ð ÐÂHHÂFigure 1©4/Q.87 shows a successful use of UUS Service 2 in a point©to© point configuration;ÆÆ Ð ` Ð Ð Ð ÐÂHHÂFigure 1©5/Q.87 shows an unsuccessful use of UUS Service 2 in a point© to©multipoint configuration;ÆÆ Ð ` Ð Ð H ÐÂHHÂFigure 1©6/Q.87 shows a successful use of UUS Service 3 requested and essential;ÆÆ Ð ` Ð Ð H ÐÂHHÂFigure 1©7/Q.87 shows a successful use of UUS Service 3 requested and not essential;ÆÆ Ð ` Ð Ð ( ÐÂHHÂFigure 1©8/Q.87 shows a successful use of UUS Service 3 requested during the active phase;ÆÆ Ð ` Ð Ð ( ÐÂHHÂFigure 1©9/Q.87 shows a successful use of UUS Service 3 requested during the active phase by the called party;ÆÆ Ð ` Ð Ð X ÐÂHHÂFigure 1©10/Q.87 shows a UUS service requested in a point©to©multipoint configuration.ÆÆ Ð ` Ð