Specifications

4 Message Reference

4.4 Signaling Interface Messages

Signaling interface messages allow signaling links to be activated and deactivated by

the user and provide a mechanism for communication between the MTP3 module and

the user part module (for example, ISUP or SCCP). In many cases, the user part

module is an Dialogic

DSI Protocol Stack so the user does not need to handle the MTP

primitives as they pass directly between MTP3 and the user part module.

In the case that the user application is implementing the user part functionality, the

MTP primitives are applicable. See the MTP2 Programmer’s Manual and the MTP3

Programmer’s Manual for more information.

The messages in the Signaling interface category include:

API_MSG_RX_IND - Received Data Indication

API_MSG_TX_REQ - MTP2 Transmission Request