May 12, 2009 on 4:22 pm | In Voice Over IP |
The way VoIP works is the end user uses a data connection (Cable, DSL, T1), a router and VoIP Phone System instead of a standard telephone line. The router sends the telephone calls over the Internet connection. The VoIP PBX System converts the analog signal into a digital format, which are further broken down into packets, before sending it over the Internet. Very similar to the way data is transmitted to and from the computer. These packets are sent through a Trunk (some trunk examples are SIP, IAX, PRI) to their final destination, your VoIP provider. It then goes through a VoIP gateway where the packets are reconverted into the original analog format utilizing a PSTN (Public Switched Telephone Network), thereby routing the call to the number the caller has dialed blending old school technology and hi tech delivery in a seamless and instantaneous way.
Voice Over IP telephony works by packet switching instead of old circuit switching. When talking to someone, analog voice is changed into digital packets which are routed through your data connection along with your computer. Your conversations are held over your data service provider.