3. Abstract

4. 2. Overview of VoIP:

5. VoIP services convert the voice into a digital signal that travels over the Internet. If any one
is calling a regular phone number, the signal is converted to a regular telephone signal before
it reaches the destination. VoIP can allow to make a call directly from a computer, a special
VoIP phone, or a traditional phone connected to a special adapter. In addition, wireless "hot
spots" in locations such as airports, parks, and cafes allow anyone to connect to the Internet
and may enable its users to use VoIP service wirelessly.
In a traditional telephone phone system (POTS, Plain Old Telephone System) an analog voice
signal is switched to make a single direct connection to each point.
But in VoIP technology, within VoIP, the analog signal is broken in to pa ckets that are
delivered to the other end (connection) by various routes on the Internet. At the end of each
connection is a system that re -assembles and puts together the original voice signal. This re -
assembly is then converted to an analog signal which can be listened to via a standard
telephone device.

6. The voice (analogue signal) is converted through a device called a VoIP adapter.Any one can
make local and long distance telephone calls over the Internet using your computer , VoIP IP
Phone or VoIP adapter.

8. .