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hp OpenCall SS7 platform Application Developer's Guide: For Release 3.1 on Linux > Chapter 18 ISUP Call Control - Procedures Specific to ANSI

Suspend/Resume

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When supported by the selected flavor, HP OpenCall SS7 ISUP offers primitives and procedures to handle Suspend/Resume messages.

Suspend/Resume - Outgoing Call

HP OpenCall SS7 ISUP only signals incoming SUS messages through a SUSPENDED_IND primitive. Outgoing SUS messages are considered unexpected.

Figure 18-8 Suspend/Resume - Outgoing Call

Suspend/Resume - Outgoing Call

Suspend/Resume - Incoming Call

HP OpenCall SS7 ISUP only accepts outgoing SUS messages associated with SUSPEND_REQ primitives. Incoming SUS messages are considered unexpected.

The suspended condition is removed after the application sends a RESUME_REQ primitive associated with an RES message.

Figure 18-9 Suspend/Resume - Incoming Call

Suspend/Resume - Incoming Call
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