Discussion on multimedia service and softswitch system technology (1)

With the emergence of SoftSwitch and the development of its technology, people are paying attention to whether Softswitch can inherit traditional voice services, while focusing on how the softswitch system can better support multimedia services, we hope to improve the service capability of the entire network. China's high-tech 863 plan began to provide column-based support for the development and testing of Multimedia Service Softswitch, and various operators, including China Telecom, China Netcom, and China Unicom, supported multimedia services during the softswitch experiment. degree is the focus of testing.

As an example, this article proposes the architecture, device functions, open interfaces, and Application Problems of the softswitch system that supports multimedia services. We hope to further discuss this issue in this column.

I. Introduction

Multimedia services generally refer to the synthesis of voice, text, image, video, and other services. Therefore, there are many multimedia services. In a sense, they represent the future development direction of telecom services. Different from traditional voice services, multimedia services have higher requirements on communication systems, such as support for integration, interactivity, and synchronization.

As one of the core devices of the Next Generation Network, Softswitch should not only support all functions of the voice service, but also have the control function of multi-media information exchange, it can control the real-time exchange and transmission of audio, video, and data information. China's high-tech 863 plan has started the research on the application of softswitch systems in mobile and multimedia applications.

As a new telecom operator, without voice infrastructure, traditional operators pay special attention to the use of grouping data platforms to provide comprehensive solutions, more emphasis is placed on the ability to provide value-added services and new services, so more and more attention is paid to the ability to provide multimedia services including voice services on the network.

In order to provide practical multimedia services in the public telecommunications network, we need to seriously study and solve the problem to achieve a truly converged network. This article will discuss questions about Softswitch-based multimedia technology.