What exactly is a softswitch for softswitch technology

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

2. The softswitch business platform can be built smoothly, and the most significant feature of softswitch technology is different from other technologies, and it is also the three basic elements of its core idea, including the following three points;

3. Generate interfaces, and the main way for softswitch to provide services is to cooperate with the "application server" through APIs to provide new integrated network services. At the same time, in order to better take into account the existing communication network, it can also cooperate with the existing "SCP" in "INAP" to improve the traditional intelligent services through "INAP".

4. Access capability, soft switch can support a large number of protocols, in order to control a variety of access equipment, maximize the protection of user investment and give full play to the role of the existing communication network;

5. Support system, softswitch adopts a policy-based implementation method that is completely different from the traditional "OAM" system to complete the function of running the support system, and carries out real-time, intelligent and centralized adjustment and intervention of network characteristics according to a certain strategy to ensure the stability and reliability of the whole system.

1. 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.

2. The softswitch business platform can be built smoothly, and the most significant feature of softswitch technology is different from other technologies, and it is also the three basic elements of its core idea, including the following three points;

3. Generate interfaces, and the main way for softswitch to provide services is to cooperate with the "application server" through APIs to provide new integrated network services. At the same time, in order to better take into account the existing communication network, it can also cooperate with the existing "SCP" in "INAP" to provide traditional intelligent services through "INAP".

4. Access capability, soft switch can support a large number of protocols, in order to control a variety of access equipment, maximize the protection of user investment and give full play to the role of the existing communication network;

5. Support system, soft switch adopts a completely different and policy-based implementation method from the traditional "OAM" spring system to complete the function of running the support system, and carry out real-time, intelligent and centralized adjustment and intervention of network characteristics according to a certain strategy to ensure the stability and reliability of the whole system.

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.

1. Performance

Softswitch: A softswitch gateway device call center.

The processing of core communication (voice transmission, format conversion, protocol conversion, call control, etc.) and virtual travel are 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 (network delay or packet loss will affect the sound quality, VOIP soft switch voice compression rate.

resulting in reduced voice quality).

Hard switching: multi-voice switches, voice card call centers.

The core communication uses a professional DSP hardware chip to exchange check packets, through the hardware chip built-in drivers.

The exchange of Yulu-segment packets is achieved through the hardware level and has strong stability.

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

2. ** aspects

Softswitching: Relatively inexpensive.

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.

Hard Swap: Higher.

The use of professional voice communication equipment, the cost is high; Customized software development, high personnel costs.

3. Maintenance and expansion

Softswitch: VoIP architecture is adopted, which is affected by network factors and computer environment factors, and the maintenance workload is large. Use open source software to call the bench.

On the basis of secondary development, the program is uncontrollable, and it is difficult to solve the problem from the root cause if there is a problem. It is easy to scale, but there is a bottleneck in the scale, and the larger the scale, the lower the stability.

Hard switching: The hardware equipment is stable and reliable, and the maintenance workload is low. It is easy to expand and can achieve large-scale stable applications.

The difference between softswitch and hardswitch. Generally speaking, switches use hard switching, and bridge devices use soft switching.

The difference is that hardswitching is to exchange and inspect packets through dedicated hardware, while softswitching is to check packets through software. The advantages of hard swapping speak for themselves, with fast speed and precise control. The traditional call center system scheme uses more voice cards and multi-switch call centers that belong to hard switching, while call centers that use software and gateway equipment belong to soft switching.

Difference Between Softswitch and Hardswap They:

Hard switching: Packet exchange is through the built-in driver of the hardware chip, and such packet switching occurs at the hardware level, so it is more stable.

Softswitching: It is a software program to exchange data packets, which requires less hardware and has certain requirements for network connection speed.

From the perspective of stability, security, call sound quality and post-maintenance of Qi segment, hard switching has obvious advantages over soft and high reputation exchange call centers, but the cost of one-time fixed investment in the early stage is higher, which is more suitable for enterprises and institutions that have customized needs for software and higher requirements for stability, such as enterprises and institutions or large listed companies. Therefore, although softswitching represents the direction of call center development, there are still some irreplaceable advantages of hardswitching call centers for now, especially for enterprises that need to build their own large, mature call centers.

On the other hand, the biggest advantage of softswitch is that it is simple to deploy and cheap, so it is extremely suitable for small and medium-sized enterprises with low budgets. Softswitch technology has also been one of the biggest drivers of call center adoption among small and medium-sized businesses in recent years.

Conceptually speaking, the traditional switch is circuit switching, slot-based switching, and the idea of softswitch is the same as traditional switching, except that the switching mode is changed to packet switching, or IP switching. In terms of practical application, softswitch refers to softswitch equipment. As described in the concept, the difference between softswitch and general switch is that the external interface is different, and the internal switching mode is also different, and they are all packet switched.

Softswitch models: Bell 5020MGC, Huawei SoftX3000.

Softswitch is the product of adapting to the development of transmission IP, application broadband, and multi-technology.

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.