Appendix E: DPNSS Call Scenarios

Call control scenarios that are specific to the DPNSS protocol are described in this chapter. Each scenario includes:

• A table that illustrates the Global Call functions issued by the application to either initiate a transaction or to respond to an external action, and the resulting events that are returned to the application.
• A step-by-step description of the scenario following each table.

The following call control scenarios are described:

• Executive Intrusion - Normal
• Executive Intrusion - With Prior Validation
• Hold and Retrieve - Locally Initiated
• Hold and Retrieve - Remotely Initiated
• Local Diversion - Outbound
• Local Diversion - Inbound
• Remote Diversion - Outbound
• Remote Diversion - Inbound
• Transfer
• Virtual Call - Outbound
• Virtual Call - Inbound

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