softswitch

With the rapid development of IP networks and applications, the next-generation network (NGN) based on the IP bearer network and Softswitch technology has been widely considered as the most suitable technology for realizing the three-in-one network. As NGN adopts a separate architecture of Call Control and media bearer, it enables operators to maximize their network potential and attract users by providing various new telecom services, and effectively

content according to the prior commercial conditions. In fact, in NGN, intelligent networks on the Service plane can be implemented in three different ways: Softswitch access to the SCP of the traditional Intelligent Network; and SSP access to the application server of the traditional Intelligent Network; A third party provides various intelligent services for IAD users, SIP users, H.323 users, and PSTN users to provide various intelligent services f

specially designed for IP phones, especially when it is integrated with the Internet. Compared with the traditional H.323 protocol, SIP has obvious advantages: good scalability; close integration with the Internet makes communication easier and more convenient; it can provide excellent support for mobile phones, PDAs, and other mobile devices, and can well implement online instant communication, voice and video data transmission and other multimedia applications.In the current market, H.323 is

Due to the differences between the fixed network and mobile network in terms of access bandwidth, terminal authentication, and terminal mobility, how to view and solve these differences has become a key issue for IMS-based FMC. The concept and architecture of IMS was initially proposed by 3GPP In R5. As a new domain in the third generation mobile communication, IMS provides multimedia services for users and achieves separation of business and control. In version 3GPPR7, IMS is extended from only

through limited interfaces. This is the integrated information network that everyone pursues. The ippbx and the mcu attached function will be one of the ways to build an effective switching node for this network, especially suitable for the construction of medium and small network systems. 2.3.3IPPBX can replace some group telephone systems IPPBX can provide comprehensive network and voice solutions for group users to meet all-round demands for continuous enterprise operation and vigorous devel

Siemens all run on IBM servers running Linux. 3Com and Siemens can also run on IBM System I computers. Other vendors can also run their software on Linux, but you need to check their software to ensure that the software runs on your Linux version. If a small ip pbx vendor uses their own Linux version, you must use the ip pbx software to download it. In this case, ip pbx software may not work in a virtualized environment. Of course, VoIP virtualization is not restricted by open-source platforms.

scientific and comprehensive selection of test points, if conditions permit, select as many test points as possible to fully reflect the network conditions. Finally, we need to combine the test methods, test content, and other factors, make detailed and comprehensive network address planning. Network Test Case This article describes the core network testing technology based on the actual testing of a carrier's IP bearer network backbone network. To meet the bearer requirements of

the call.BYE -- terminate the call between two users on a call.OPTIONS -- request information about server capabilities.ACK -- confirm that the client has received the final response to INVITE.REGISTER -- provides address resolution ing to let the server know the location of other users.INFO -- used to send messages in a session.V. ConclusionBecause of its simplicity, scalability, and implementation convenience, the SIP Protocol has become increasingly popular in the industry. It is gradually b

In order to adapt to the rapid development of data services represented by IP Services and the trend that the data business volume will exceed or greatly exceed the voice business volume; to adapt to the changes in network traffic distribution caused by customer-server and other application methods, as well as the unique self-similarity of IP Services and the asymmetry of sending and receiving, to support an endless stream of online applications, all countries in the world are exploring and expe

connections between IPTV, NGN, Softswitch, 3G bearer, IDC interconnection, and public INTERNET service nodes to share the same physical transmission network. With the rapid growth of the IP service, the demand for network bandwidth far exceeds the traditional voice network, which greatly increases the network capacity and the burst and uncertainty of the IP service, the network will be required to have wavelength-level scheduling capabilities to quic

With the development of IT software and hardware technology and business development, more and more communication networks are introduced and become standards in addition to the traditional PSTN network and 2G network, such as 3G network, LTE network, IMS network, WiMAX network, and Softswitch Network. This leads to a large increase in user data. With the surge in user data in the network, the original methods of storing and managing user data in thei

appeared. Solution: first, view the last command in "1". Recently, I logged on to the user and found that there were more than n unknown ip addresses logged on. Several ip addresses found in Russia and in the United States were captured. So far, I am sure it is a trojan of a foreign guy. 2. View ps-ln to view the current running process. It doesn't matter if you find that more than n wget programs can be downloaded remotely. That's cool. 3 without saying anything, discard the kill thread number

Core switches are worth learning. Here we mainly introduce the evolution and various architectures of the core switch architecture. Applications are always the driving force behind technological development. In the face of increasingly complex business applications, the technical architecture of network devices has become a key factor in the scope of application of devices. Different application environments require different network devices. For example, the application of NGN needs devices bas

In the early core switch market, various production products were launched by a single engine. However, with the increase in user requirements, a single engine could no longer meet these needs. Applications are always the driving force behind technological development. In the face of increasingly complex business applications, the technical architecture of network devices has become a key factor in the scope of application of devices. Different application environments require different network

, Ethernet, X.25.25 and other business interfaces through the ATM adaptation layer, provides high-speed Internet access, lan interconnection, voice, high-definition TVs, on-demand TVs, conference TVs, and other broadband services. ATM networks are generally called B-ISDN man. As can be seen from the above, ATM has the advantages of group switching and circuit switching, and is suitable for transmitting a variety of real-time and non-real-time telecommunication services. However, A has problems s

Applications are always the driving force behind technological development. In the face of increasingly complex business applications, the technical architecture of network devices has become a key factor in the scope of application of devices. Different application environments require different network devices. For example, the application of NGN needs devices based on the SoftSwitch technical architecture, for example, the vertical network needs to

1. Network Structure: one server controls login, and the rest are node nodes. The nodes with independent public IP addresses are super nodes, while the others are normal nodes. Normal nodes must use super nodes to join the Skype world. 2. Use the stun (Simple Traversal of UDP through NAT) and turn (traversal Using relay Nat) Protocols to detect the NAT and firewall environments.See application of Private Network traversal Technology in the softswitch

A VoIP operation support system has the general SQL Injection Arbitrary File Traversal Vulnerability (a large number of enterprises are affected) Kunshi Network Technology Co., Ltd. develops a support system for small and medium-sized scale VoIP operation services. In addition to meeting the operating rate setting and package management requirements, in addition to basic functions such as account management, terminal management, Gateway management, data query, card management, number management

prepare software, others always think that you are a software developer. When you start to learn hardware, others may not agree. A friend of ZTE also told me that a person cannot finish everything. I also understand this, but I hope I can do better. However, when you are familiar with hardware, you may feel that you are familiar with software and hardware, and your colleagues are also familiar with it. At this time, I can take the hardware materials to the company, and no one will be surprised.

is finite, and the freeswitch state machine is divided into the following States:On_init,On_routing,On_execute,On_hangup,On_exchange_mediaOn_soft_execute,On_consume_media,On_hibernate,On_reset,On_park,On_reporting,On_destroy.The actual call process is in these statuses. Uac1-uas: Incoming system, system build session: Sofia_handle_sip_ I _invite-> switch_core_session_request-> switch_core_session_thread_launch,After parsing the request, go to cs_new-> cs_init. After initialization, go to dialpl