TCAP service function summary

NMS TCAP consists of the following service functions:

Function

Description

TCAPAddComp

Adds a component and, optionally, its associated parameters to a TCAP transaction data message being constructed.

TCAPCoordReq

Requests that the subsystem be taken out of service and have all traffic routed to its backup point code.

TCAPCoordResp

Accepts a request that an associated signaling point subsystem be taken out of service.

TCAPGetApiStats

Retrieves congestion level activity statistics from the TCAP service.

TCAPGetComp

Extracts a specific component and, optionally, its associated parameters from a TCAP transaction data message received through TCAPRetrieveMessage.

TCAPInitTrans

Initializes a new transaction message prior to adding components to the transaction message (with TCAPAddComp) or sending the transaction request with TCAPTransRqst, or both.

TCAPRetainTrans

Resets the TCAP inactivity timer.

TCAPRetrieveMessage

Retrieves the next message from the TCAP layer.

TCAPStateReq

Notifies all concerned point codes of a change in its subsystem state by generating a subsystem available (SSA) or subsystem prohibited (SSP) message to all concerned signaling points as specified by the application's SCCP service access point.

TCAPTransRqst

Sends a transaction message request to the TCAP layer.