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VoIP Phone System Technology Articles | April 6 Cheap Jerseys From China , 2006
A Voice over Internet Protocol, or VoIP, transmission is initiated by converting voice into digital format. This can be done by Analog Telephone Adaptor (ATA) or by the computer itself using software....


A Voice over Internet Protocol, or VoIP, transmission is initiated by converting voice into digital format. This can be done by Analog Telephone Adaptor (ATA) or by the computer itself using software. In the Public Switch Transmission Network (PSTN) Cheap Jerseys , the dialing of the number initiates the call by connecting the call to the public switch and routing the call to the correct party\''s telephone number through the telephone network.

A VoIP network also has similar functions like that of PSTN, in addition to the IP provider and Internet Service Provider (ISP). The major components of a VoIP network are user devices (one or both ends), a call processing server, VoIP gateways, gatekeepers and an IP network. The user device consists of VoIP phones Wholesale NFL Football Jerseys , traditional phones with accessories and computer-based devices. VoIP phones may be hard or soft phones.

A VoIP hard phone is like a traditional phone, but instead of a phone jack, it has an Ethernet port through which it communicates directly with a VoIP server or another VoIP phone. It doesn\''t need a personal computer, only an internet connection. These hard phones may also come cordless.

A dialup hard phone is one with a built-in modem instead of an Ethernet port. A wifi hard phone is built with a wifi transceiver to connect to a wifi base station to be connected to a remote VoIP server. This can be used to transfer calls to a GSM network.

A soft phone is run by software in the computer. This requires appropriate hardware such as a microphone, a speaker or a USB port. Once dialed Wholesale Football Jerseys , the phone number is processed by the call processor, which is actually hardware running a database mapping program called soft switch; the software manages all connections. This is also called IP PBX (private branch exchange), similar to the PBX of the PSTN lines.

There are gateways and gatekeepers that control the call admission and bandwidth management. They also control the creation of IP packets that contain the voice data and other information about the call.

Finally, there is the IP network, which consists of distributed routers ensuring connectivity. This IP logical switch is referred to as the soft-switch architecture. These four components form the phone system for VoIP Wholesale Nike NFL Jerseys , in addition to the software and various protocols through which the call is smoothly communicated.

Article Tags: Voip Phone, Phone System, Hard Phone
Top Electronic Cigarettes in the USA Technology Articles | October 11, 2011
?Electronic cigarettes are electrical devices that produce vapor instead of the harmful smoke emitted by tobacco cigarettes.

What are electronic cigarettes? Electronic cigarettes are the answer to the growing number of tobacco smokers worldwide. Electronic cigarettes are electrical devices that produce vapor instead of the harmful smoke emitted by tobacco cigarettes. By this, it simulates the act of smoking Wholesale NFL Jerseys Cheap , satisfying one?s physical and mental craving for the real ones. With the help of electronic cigarettes we could diminish the number of respiratory health problems and death caused by tobacco smoking in the planet. Thousands of people have switched to smoking electronic cigarettes today and have been satisfied with the outcome.

If you plan to switch to something better and leave the habit of tobacco smoking for good, purchasing e-cigarette kits would be your first step. E-cigarette kits consist of electronic cigarettes, batteries, wall charger, USB charger Wholesale NFL Jerseys Free Shipping , and cartridges, usually in a set of five, depending on your choice of flavour and strength.? E-cigarette kits are available online and in selected stores. People most of the time purchase their e-cigarette kits online because they haven?t been available in much stores worldwide yet. In addition to that, people seek for knowledge, facts Wholesale NFL Jerseys From China , and reviews on the internet to be able to know more about electronic cigarettes, besides you wouldn?t find much knowledge elsewhere to make an informed decision regarding this matter yet, but online.

There are a number of electronic cigarette companies to purchase from on the internet. The top electronic cigarettes as of today are as follows: First is the Blu cigs, the leading electronic cigarette brand. They have launched their new design that offers better functionality and has better rendition and technology. Second in the list of top electronic cigarettes is the South Beach Smoke, it is quite new in the industry. Third is the V2Cigs Wholesale NFL Jerseys China , they offer auto batteries as well as manual ones. They have a variety of flavors to choose from. Fourth in the list of top electronic cigarettes is the White Cloud, they have released a new model to add on their items, it gives out twice the vapor and is lighter and shorter than usual. Fifth is SmokeTip, which offers Eazy-drag system that allows inhaling without that much effort.? Next is the Volcano which offers a variety of starter kits to fit your budget. Seventh on the list is of top electronic cigarettes are SmokeStik which offers batteries that last longer. Aside from the companies of top electronic cigarettes worldwide, you could always hit the internet to look for a wider range of choices. It always depends on the smoker?s needs and wants.??



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