TCAP service users

NMS TCAP supports one or more applications with service access points, or SAPs. One SAP is defined for each application that uses the TCAP service. At initialization, applications bind to a particular SAP by specifying the SAP ID. Each user SAP is associated with a single SCCP subsystem number. All TCAP messages destined for a particular subsystem number are routed to the application bound to the SAP associated with that subsystem number.

SAPs are shown in the following illustration:

Note: The number of SAPs and the characteristics of each SAP are specified at TCAP configuration time. Refer to the NMS SS7 Configuration Manual for more information.