USER |
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| Q.93B |
| SWITCH |
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| Null (0)1 |
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| SetUp |
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| SetUpAck |
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| SetUp |
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| Call Initiated (1) |
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| CallProceeding* |
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| CallProceeding* |
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| Call Present (6) |
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| Outgoing Call |
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| Proceeding (3) |
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| Incoming Call |
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| Proceeding (9) |
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| Connect |
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| Connect |
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| Connect |
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| Connect Request |
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| ConnectAck |
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| Connect |
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| ConnectAck |
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| Active (10) |
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| Active (10) |
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| Release |
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| Release |
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| Release Request |
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| Release |
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| (11) |
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| Release_Complete |
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| Release_Complete |
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| Release_Complete |
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| Null (0) |
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| Null (0) |
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1XX(n): Q.2931 State Name (Q.2931 State Number) * Optional
FIGURE C-3 Message Flow for Normal Call Setup and Tear-Down
Appendix C Application Programmer’s Interface 95