delim @@

| 5i'

This

Annex

includes

ANNEX A
(to Recommendation Q.931)

User side and network side SDL diagrams

overview and detailed SDL diagrams which

show Q.931 protocol control for

circuit-switched basic calls. In the event of conflict between these diagrams and the text of § 5, the text should be the prime source. Similarly, in the event of conflict between overview SDL and detailed SDL diagrams, the detailed SDL diagrams should be the prime source.

Figure A-1/Q.931 shows key to Q.931 protocol control SDL diagrams for both user side and network side.

Note -- The same name as is specified in Recommendation Q.699 is used for each primitive to be exchanged between Q.931 protocol control and call control, whenever it is possible. Alignment of primitive names with those specified as OSI terminology may be required.

Figure A-2/Q.931 and A-3/Q.931 show overview and detailed protocol control SDL diagrams for the user side.

Figure A-5/Q.931 and A-6/Q.931 show overview and detailed protocol control SDL diagrams for the network

side.

Only procedures for the point-to-point configuration are described in the network side SDL diagrams.

Note -- Network side SDL diagrams for the point-to-multipoint configuration are left for further study.

Figure A-4/Q.931 shows detailed SDL diagrams for the global call reference to be applied to both user and

network sides. Although Figure A-4/Q.931 shows SDL diagrams in the user-side only, the same diagrams can be applied to the network side by just changing the direction of input and output symbols.

Fascicle VI.11 -- Rec. Q.931 1

Figure A-1/Q.931 (sheet 1 of 2), p. 1 2 Fascicle VI.11 -- Rec. Q.931

Figure A-1/Q.931 (sheet 2 of 2), p. 2 Fascicle VI.11 -- Rec. Q.931 3

Figure A-2/Q.931 (sheet 1 of 7), p. 4 Fascicle VI.11 -- Rec. Q.931

Figure A-2/Q.931 (sheet 2 of 7), p. Fascicle VI.11 -- Rec. Q.931 5

Figure A-2/Q.931 (sheet 3 of 7), p. 6 Fascicle VI.11 -- Rec. Q.931

Figure A-2/Q.931 (sheet 4 of 7), p. Fascicle VI.11 -- Rec. Q.931 7

Figure A-2/Q.931 (sheet 5 of 7), p. 8 Fascicle VI.11 -- Rec. Q.931

Figure A-2/Q.931 (sheet 6 of 7), p. Fascicle VI.11 -- Rec. Q.931 9

Figure A-2/Q.931 (sheet 7 of 7), p. 10 Fascicle VI.11 -- Rec. Q.931

Figure A-3/Q.931 (sheet 1 of 25), p. Fascicle VI.11 -- Rec. Q.931 11

Figure A-3/Q.931 (sheet 2 of 25), p. 12 Fascicle VI.11 -- Rec. Q.931

Figure A-3/Q.931 (sheet 3 of 25), p. Fascicle VI.11 -- Rec. Q.931 13

Figure A-3/Q.931 (sheet 4 of 25), p. 14 Fascicle VI.11 -- Rec. Q.931

Figure A-3/Q.931 (sheet 5 of 25), p. Fascicle VI.11 -- Rec. Q.931 15

Figure A-3/Q.931 (sheet 6 of 25), p. 16 Fascicle VI.11 -- Rec. Q.931

Figure A-3/Q.931 (sheet 7 of 25), p. Fascicle VI.11 -- Rec. Q.931 17

Figure A-3/Q.931 (sheet 8 of 25), p. 18 Fascicle VI.11 -- Rec. Q.931

Figure A-3/Q.931 (sheet 9 of 25), p. Fascicle VI.11 -- Rec. Q.931 19

Figure A-3/Q.931 (sheet 10 of 25), p. 20 Fascicle VI.11 -- Rec. Q.931

Figure A-3/Q.931 (sheet 11 of 25), p. Fascicle VI.11 -- Rec. Q.931 21

Figure A-3/Q.931 (sheet 12 of 25), p. 22 Fascicle VI.11 -- Rec. Q.931

Figure A-3/Q.931 (sheet 13 of 25), p. Fascicle VI.11 -- Rec. Q.931 23

Figure A-3/Q.931 (sheet 14 of 25), p. 24 Fascicle VI.11 -- Rec. Q.931

Figure A-3/Q.931 (sheet 15 of 25), p. Fascicle VI.11 -- Rec. Q.931 25

Figure A-3/Q.931 (sheet 16 of 25), p. 26 Fascicle VI.11 -- Rec. Q.931

Figure A-3/Q.931 (sheet 17 of 25), p. Fascicle VI.11 -- Rec. Q.931 27

Figure A-3/Q.931 (sheet 18 of 25), p. 28 Fascicle VI.11 -- Rec. Q.931

Figure A-3/Q.931 (sheet 19 of 25), p. Fascicle VI.11 -- Rec. Q.931 29

Figure A-3/Q.931 (sheet 20 of 25), p. 30 Fascicle VI.11 -- Rec. Q.931

Figure A-3/Q.931 (sheet 21 of 25), p. Fascicle VI.11 -- Rec. Q.931 31

Figure A-3/Q.931 (sheet 22 of 25), p. 32 Fascicle VI.11 -- Rec. Q.931

Figure A-3/Q.931 (sheet 23 of 25), p. Fascicle VI.11 -- Rec. Q.931 33

Figure A-3/Q.931 (sheet 24 of 25), p. 34 Fascicle VI.11 -- Rec. Q.931

Figure A-3/Q.931 (sheet 25 of 25), p. Fascicle VI.11 -- Rec. Q.931 35

Figure A-4/Q.931 (sheet 1 of 4), p. 36 Fascicle VI.11 -- Rec. Q.931

Figure A-4/Q.931 (sheet 2 of 4), p. Fascicle VI.11 -- Rec. Q.931 37

Figure A-4/Q.931 (sheet 3 of 4), p. 38 Fascicle VI.11 -- Rec. Q.931

Figure A-4/Q.931 (sheet 4 of 4), p. Fascicle VI.11 -- Rec. Q.931 39

40 Fascicle VI.11 -- Rec. Q.931