pstn conferencing

1. Introduction The Public Switched telephone network (switched telephone network or PSTN) is a circuit-switched network for global voice communications, the largest network in the world, with a population of about 800 million.The public switched telephone network was first established by the telephone invented by Bell in 1876. The PSTN has gone through the phase of magnet exchange, air separation, program-

For most users, the most important factors of video conferencing system are the following aspects: Audio and video quality, system price, security and scalability of the system. At present, there are two main types of network environment, one is based on circuit switching network, such as ISDN, DDN, PSTN and so on. The other is a packet-switched network, such as ATM, IP, Frame Relay, and so on. Leveraging

Most users are most concerned about Video Conferencing Systems in the following aspects: audio and video quality, system price, system security, and scalability. This article compares the problems raised by users from the perspectives of network access methods, software and hardware solutions for applications, and other video conferencing products on the market, it provides some reference for users to build

There are still many ways to learn about the access network. Here we mainly introduce the main access network methods of video conferencing. Most users are most concerned about Video Conferencing Systems in the following aspects: audio and video quality, system price, system security, and scalability. This article compares the problems raised by the above users from the perspectives of access network method

At the request of the dynaguy brothers, I have attached a relatively complete experiment to colleagues who are still exploring: (There are some problems with the 2.0beta experiment, so I will demonstrate it with the most stable 1.2.3) In this test, we did not discuss the issue of using the SIP Trunk directly to connect other sip servers without board installation to enable the SIP users to make external calls. This article is only used to discuss questions about using the fxo card to test intern

If you want to create a new speech policy, follow these steps. If you want to edit the speech policy, see Modify speech policies and configure related steps in the PSTN usage record. Attention: Each speech policy must have at least one associated PSTN usage record. To view a list of all PSTN usage records and their properties provided in

============================================== View hardware configuration # Dahdi_hardware==============================================View Dahdi Service ConfigurationMore/etc/dahdi/system.confShow the following content, obviously less my PSTN card configuration# Global DataLoadzone = usDefaultzone = usRebuilding the Dahdi service configuration#dahdi_genconfView Dahdi Service Configuration again# more/etc/dahdi/system.confShow# autogenerated by/usr/

There are still many access networks in the video conference. Here we will introduce common access methods in section 7, including using ISDN lines, renting ddnleased lines, and using PSTN systems. Most users are most concerned about Video Conferencing Systems in the following aspects: audio and video quality, system price, system security, and scalability. There are two common network environments: one is

Internet video conferencing has been used in a number of companies, but a survey of Internet video conferencing usage by a communications consultancy showed that while up to 67% of senior managers interviewed said they expected to hold more video meetings in the future, more than 62% say They were concerned about whether they had the skills to make the most of the conference. Maybe a lot of people in the c

Today, video conferencing has become a long-distance enterprise remote office must be a lot of communications equipment, in helping enterprises to achieve savings, improve communication efficiency, video conferencing system also presents a polarization. Traditional hardware-built video conferencing system because of the high price, so many small and medium-sized

Compared with the traditional video conferencing system, cloud video conferencing simplifies the construction and operation of the process, but also let the video conferencing with obvious personal characteristics. This is the result of the application market demand, the industry change demand and the enterprise sustainable development demand, the cloud video con

Background This product was done starting from 07, and was largely discontinued by 13, lasting 6 years. At that time, mainly in our company's media server focus on video, and video applications, but also on the application of video conferencing is more extensive. So in 07, I recruited a few brothers and started to develop a conferencing server based on the media server Describe compani

Install a remote video conferencing system you can take three ways; 1. Budget is relatively more: than can take all the hardware way to do! Structure is the main venue required equipment: An MCU, a terminal, conference-specific camera, audio Mike, display equipment! The branch place uses the equipment is: The terminal, the Conference special-purpose camera, the sound microphone, displays the equipment. This method to achieve the first simple operatio

Ext.: http://www.ctiforum.com/news/guonei/440506.htmlis the conference call good or the video conference good? This question cannot be answered, because each has its own advantages, it is best to combine the two　　Program IntroductionWith the popularity of video conferencing, more and more enterprises to deploy video conferencing, many Chinese companies believe that only video

Video Conferencing has the advantages of cost saving and can ensure business continuity. Therefore, it is an important form of enterprise communication. Many video conferencing service providers and suppliers have introduced many different service products and connection technologies. However, video conferencing interoperability is the main feature and is also ne

Bkjia.com Comprehensive Report]Does the intermittent video conferencing make you very worried? Are you confused if you have a leased line or problems? The configuration process of wangkang ITM's video conferencing support function allows you to easily complete the mosaic of video conferencing. First: Reserve bandwidth for video

be used for on-demand and live streaming, and other files can be shared. There are no restrictions on file types. Streaming media files are widely supported, such as rmvb, wmv, flv, and mp4. Source code download Forum: http://opensource.kan8888.com SVN: Project address: svn: // p2p.kan8888.com/P2PCenter Username: mc_public Password: kan8888.com Sourceforge.net:Web: http://p2pmedia.svn.sourceforge.netSVN address: https://p2pmedia.svn.sourceforge.net/svnroot/p2pmedia Demo Web: http://www.skyvcd.