Accelero™ ISUP (ISDN User Part) API
Accelero™ ISUP (ISDN User Part) API Datasheet
The ISDN User Part (ISUP) is used to set up and tear down all circuits used for data or voice calls in the Public Switched Telephone Network. In addition to its usage in the PSTN, ISUP is also used in wireless networks for establishing trunk connections between switching centers.
ISUP supports both analog and digital circuits and call management signaling for data transmission.
ISUP makes use of the services provided by the Message Transfer Part (MTP) for the transfer of information.
Examples of ISUP message types may include:
- Initial Address Message (IAM)
- Address Complete Message (ACM)
- Answer Message (ANM)
- Release Message (REL)
- Release Complete Message (RLC)
Indications are messages delivered to an application in the form of an event. These messages cover several areas. The Accelero™ ISUP API provides the following indications:
- Error indications
- Timeout indications
- Information indications
The Accelero™ ISUP API allows for customized parameter ID definition and customized processing actions for unsupported ISUP messages and parameters. The developer defines the messages, parameters and expected action in the configuration file.
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