Voice over Internet Protocol (VoIP), is a technology that allows one to make voice calls using a broadband Internet connection instead of a regular (analog) phone line.
Why use VoIP Technology?
-Lower Cost .
-Long distance calling.
-Increased Functionality.
-Voicemail feature and many advanced features and functionalities.
What it needs to access VoIP technology?
An Internet connection with a calling application on one’s computer or Special VoIP phone or a traditional phone connected to a special adapter which leads to communication over VoIP.
The steps and principles involved in originating VoIP telephone calls are similar to traditional digital telephony and involve signaling, channel setup, digitization of the analog voice signals, and encoding.
Instead of being transmitted over a circuit-switched network, the digital information is packetized and transmission occurs as IP packets over a packet-switched network.
They transport media streams using special media delivery protocols that encode audio and video with audio codecs and video codecs.
Various codecs exist that optimize the media stream based on application requirements and network bandwidth.
some implementations rely on narrowband and compressed speech, while others support high-fidelity stereo codecs.
How Internet Voice/VoIP works?
VoIP services convert voice into a digital signal that commutes over the Internet. If one is calling a regular phone number, the signal is converted to a regular telephone signal before it reaches the destination.
Few VoIP Softwares:
Skype , Viber, Google Hangouts, Jitsi, Micro SIP, TeamSpeak, TeamTalk, Line,iTel switch, iTel IM dialer, SyncSwitch , CoolDialer and many more…
Few VoIP Software solution providers:
3CX, SBO, Bicom Systems, REVE systems, Matrix telecom, AVA Communications, SoftSwitch, ALTO Telecom, Zaplee LLC, VoIP Supply and many more..