6 Message Reference

6 Message Reference

6.1Overview

This section describes the individual messages that may be sent to and received from the Dialogic® DSI SPCI Network Interface Board. Some messages are sent by the user's application software whilst others are sent by utility programs such as the configuration utility s7_mgt.

Prior to sending any message to the DSI SPCI Network Interface Board the application must call the library function GCT_set_instance to select the board to which the message is sent. After receiving a message from the board, the application must call the library function GCT_get_instance to determine which board the message came from. These library functions are described in the Software Environment Programmer's Manual.

The messages are grouped into four categories:

General Configuration Messages,

Hardware Control Messages,

MTP Interface Messages, and

Event Indication Messages.

6.1.1General Configuration Messages

General Configuration Messages are normally issued by the s7_mgt configuration utility in which case they need not, and must not, be generated by any user application software.

If the user elects not to use s7_mgt, then it is necessary for the application to build and send messages to configure the SSD module, reset each individual DSI SPCI Board, configure each board and optionally configure additional routes.

6.1.2Hardware Control Messages

Hardware Control Messages are used to control various hardware devices on the board. This includes the T1/E1 Line Interface Units (LIU), the digital cross connect switches and the clocking mode for the DSI SPCI Board.

In a static configuration, all these hardware blocks can be set up using the s7_mgt configuration utility along with the appropriate commands in the config.txt file.

If dynamic control of the hardware is required (or the user has elected to not use s7_mgt), then the user application needs to build and send at least some of the Hardware Control Messages.

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Dialogic DSI SPCI Network Interface Boards Message Reference, General Configuration Messages, Hardware Control Messages

DSI SPCI Network Interface Boards specifications

Dialogic DSI SPCI Network Interface Boards are highly advanced and versatile communication solutions tailored for the demands of modern telephony and multimedia applications. These boards are designed to efficiently process voice, data, and signaling, making them an essential component for businesses looking to enhance their communication capabilities.

One of the standout features of the Dialogic DSI SPCI boards is their ability to handle multiple telephony protocols. This flexibility allows users to connect to various network types, whether PSTN, VoIP, or legacy systems, ensuring seamless interoperability. The boards support industry-standard protocols such as ISDN, SS7, and SIP, enabling integrated communication across diverse platforms.

The technology behind the Dialogic DSI SPCI boards incorporates state-of-the-art digital signal processing (DSP). This powerful DSP architecture provides efficient encoding and decoding of voice and video signals, leading to enhanced call quality and reduced latency. Moreover, the DSP technology supports advanced codecs, ensuring that voice communication is clear and intelligible, even over bandwidth-limited connections.

Another significant characteristic of these boards is their scalability. Organizations can start with a single board and expand their telecommunication capabilities as their needs grow. This scalability makes them suitable for a wide range of applications, from small businesses to large enterprises, allowing for easy integration into existing infrastructures.

In addition to their powerful processing capabilities, Dialogic DSI SPCI boards also prioritize reliability and robustness. They are designed with a focus on fault tolerance, ensuring that telephony services remain uninterrupted even in the event of hardware failure. This resilience is critical for mission-critical applications where downtime can lead to significant revenue loss.

Furthermore, the boards feature extensive application development support. Developers can leverage the Dialogic API and various development kits to create custom telephony applications that meet specific business requirements. This programmability opens the door to innovative solutions, such as interactive voice response (IVR) systems, automated call distribution (ACD), and customer relationship management (CRM) integration.

In summary, Dialogic DSI SPCI Network Interface Boards are a cornerstone for organizations looking to innovate their telecommunication systems. With their support for multiple protocols, advanced DSP technology, scalability, reliability, and development support, these boards empower businesses to optimize their communication strategies and adapt to the evolving landscape of digital interaction.