VoIP phone service using the infrastructure already in place for the discourse of the Internet and convert digital audio is sent as packets. VoIP services can be interconnected with the public switched telephone network (PSTN) and calls can be made to another computer, mobile phone or VoIP phone.

VoIP services are similar to those provided by PSTN with call forwarding, call waiting, caller ID, conference calling and automatic services. VoIP has an advantage over your telephone line security – the audio is divided into several pieces of very short duration and is sent through the Internet as packets. The packages were received in the intermediate sequence. It is very difficult for anyone to intercept a conversation about VoIP.

VoIP has become popular in recent years it has become a low cost of voice communication solution with a broad user acceptance and a broad consumer base. Service providers do not cover the installation of the infrastructure in the form of a son and switching equipment and Internet infrastructure is already in place. In the PSTN, services need to digitize voice and data transmitted after the conversion of digital signals. The infrastructure of the Internet and signs of this nature, which reduces the cost to service providers in a meaningful way. This extends to IP telephony customers in services much lower than the rate of PSTN.

Introduction to VoIP