What is softswitch technology, in layman s terms

It is to install a software on the host computer to realize the sharing of the Internet.

Softswitch is a functional entity that provides call control and connection control functions for next-generation network NGN with real-time requirements, and is the core of next-generation network call and control.

To put it simply, the softswitch is the entity that realizes the "call control" function of the traditional Zhidan program-controlled switch, but the traditional "call control" function is combined with the business, and the call control function required by different services is different, and the softswitch is unrelated to the business, which requires the call control function provided by the softswitch to be the basic call control of various services.

Softswitch technology is the core technology of NGN network, which provides call control and connection control functions for services with real-time requirements on next-generation networks (NGN). The softswitch technology is independent of the transmission network, and mainly completes the main functions such as call control, resource allocation, protocol processing, routing, authentication, and billing, and can provide users with all the services that the existing circuit switch can provide, and provide programmability to third parties.

Categories: Computer Internet >> Internet.

Analysis: NGN (next-generation network) is a next-generation network with softswitch as the core, which can provide multi-core integrated services such as voice, data, etc., and adopts an open and standard architecture to provide rich services.

In a narrow sense, a softswitch refers to a softswitch, also known as a call, a call server, or a gateway. Softswitch is the implementation of NGN's control function, which provides call control and connection control functions for NGN in real-time services, and is the core of NGN call and control. As the embodiment of the idea of separating service control and transmission access, softswitch technology is a key technology in the NGN architecture, and its core idea is hardware software, which realizes the control, connection and service processing functions of the original switch through software, and connects and communicates between entities through standard protocols, so as to facilitate the faster implementation of various complex protocols in NGN and the provision of services more conveniently.

The softswitch mainly has the following functions: ** bridge gateway access function, signaling gateway function, call control function, service provision function, interconnection function, gateway function, operation and maintenance function, and billing function.

Internet Addiction Disorder" (IAD).

NGN is an abbreviation for "Next Generation Neork" or "New Generation Neork". NGN is a next-generation network with softswitch as the core, which can provide multi-core integrated services such as voice, data, etc., and adopts an open and standard architecture to provide rich services.

NGN is a comprehensive and fully open network platform system that can provide voice, data, multi-service and other services at the same time, which can be summarized into three characteristics: it adopts a hierarchical and fully open network with an independent modular structure; It is a service-driven network, where service and call control are completely separated, and calls and bearers are completely separated. It is a packet network system based on a unified protocol. NGN encompasses a wide range of content, and from the current situation, in terms of transmission infrastructure, it refers to all-optical intelligent networks; In the context of IP networks, IPv6 is referred to; In terms of mobile networks, it refers to more than 3G; In terms of business network, it refers to soft switches, etc.

Application characteristics of softswitching.

With the core idea of "separation switching and control", soft switching breaks the traditional telecom network structure and is fully prepared for the integration of data and voice and the generation of a large number of new services. In today's open and deepening competition in the telecom market, softswitch has been given the historical significance of "next-generation network core". Softswitch technology is expected to solve many problems that plague telecom operators and create a new situation for the development of the telecom industry.

The application prospects of softswitch networks are manifested in the following aspects.

1. Generate rich and flexible new services, providing a means for telecom operators to meet user needs and win greater economic benefits. The softswitch network will make the telecommunication network and the Internet continue to integrate, and the Internet has the ability to generate a variety of new services, which will inevitably provide a source for the growth of network economic benefits.

2. Completely solve the coexistence of multiple networks, reverse the situation of business dependence on the network, and provide a guarantee for telecom operators to reduce operating costs and win in market competition. Softswitch realizes the complete separation of services, calls, and bearers, and unifies various networks such as traditional PSTN, mobile, data, and cable TV into a comprehensive and unified IP-based system.

First, the multi-service network, which not only completely reverses the situation that specific services depend on a specific network, enables multiple services to be carried on the same core network, reduces the waste of network construction, but also changes the unfavorable situation of network operation and maintenance separation, greatly reduces the operating costs of telecom operators, and provides a guarantee for them to win in the fierce market competition.

3. It is simple and convenient to carry the original PSTN services, which provides new ideas for telecom operators to adapt to the new situation and adjust the structure of telecom networks.

Difference Between Softswitch and Hardswitch:

First, the performance aspect

1. Softswitch: softswitch + gateway equipment call center. The processing of core communication (voice transmission, format conversion, protocol conversion, call control, etc.) is realized through pure software, and the core of soft switch is to exchange data packets through soft switch programs.

Features: Slow speed, average stability, greatly affected by changes in the network environment, poor voice quality (the sound quality will be affected when the network delay or packet loss will be affected, and the voice quality will be reduced due to the compression rate of VOIP softswitch language).

2. Hard switching: multi-** voice switch, voice card call center. The core communication uses a professional DSP hardware chip to exchange and check data packets, and exchanges data packets through the built-in driver of the hardware chip, which is realized through the hardware level and has strong stability.

Features: Equipment-level, fast speed, high stability, good sound quality (using hardware chip to process voice data, standard voice compression rate, good sound quality).

Third, ** aspects

1. Soft switching: ** is relatively cheap. Since the core is open source and free, the use of hardware equipment is less, which greatly reduces costs; The softswitch adopts an open-source version, which does not require much secondary development and has a very low development cost.

2. Hard swap: ** higher. The use of professional voice communication equipment, the cost is high; Customized software development, high personnel costs.