3. Sequence of Function Calls in ISDN

This chapter describes the sequence of function calls for the following ISDN call situations and modes:

• Inbound Calls, Asynchronous Mode
• Outbound Calls, Asynchronous Mode
• Call Termination, Asynchronous Mode
• Inbound Calls, Synchronous Mode
• Outbound Calls, Synchronous Mode
• Call Termination, Synchronous Mode

For more detailed ISDN call scenarios, see Appendix A, "Establishing ISDN Connections".

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