What is VoIP

What is VoIP? Is it useful, or inexpensive? The answer

is that VoIP is Voice over Internet Protocol. Voice over the Internet allows connections all over the world. It is one way to have a free pc to phone international call. In other words it is a phone call from pc. Yes, it is useful, and it is inexpensive, especially if you like the word free. Some Voice over Internet service may allow you to only call anyone who has the same service, but some will allow a phone call to anyone with a telephone number including international numbers. Easy Free PC To Phone International CallVoice over Internet Protocol allows the converting of your voice into a digital signal that travels over the Internet. If you are calling a regular phone number, using a broadband service, the signal is converted to a regular telephone signal before it reaches the destination. In layman’s terms you are using your Personal Computer via a modem or phone adapter to connect to the Internet, and the receiving person will answer via PC or telephone. This allows the free pc to phone international call. This all happens with this broadband Internet connection instead of a regular or analog phone line. The equipment needed to make this happen are a broadband high speed Internet connection. A computer, adapter or other specialized phone is required. Some Voice over Internet Protocol services only work over your computer or a special VoIP phone, while there are other services that allow you to use a traditional phone connected to a VoIP adapter. If you are going to use your computer as a phone call from pc then you will need to have some software and an inexpensive microphone. Some special VoIP phones plug directly into your broadband connection and operate largely like a traditional telephone. If you use a telephone with an adapter, then you will use the phone like you always have. In order to make the VoIP free pc to phone international call you must make certain that your Internet provider will allow you to make those calls. It comes down to what your subscription service will allow on their services. Check into that before you decide if VoIP is right for you. One of the advantages of VoIP is that you may be able to avoid paying for both a broadband connection and a traditional telephone line, which will save you money. More so if you are able to make a phone call from pc. If you are traveling overseas or to another country you may take your phone and adapter with you, and connect to another computer. This makes you able to use your same provider to make phone calls back home. The disadvantages are that the VoIP will not work during power outages and the service provider may not offer backup power. Not all VoIP service connects directly with emergency services such as 9-1-1. Nor will some providers offer directory assistance or white page listings. These seem to be the downfall of having VoIP service. The computer does not have to be turned on for the VoIP to work, but the broadband connection must be active or live. The other piece of news is that you can use both the computer and the VoIP phone service at the same time. Yes, this is one good way of making your free pc to phone international call. The option is for you to check with your Internet service provider. Make certain you have all software and possible adapters, as well as the broadband connection. With the right equipment you will be able to make a free pc to phone international call. If you are attending school, working overseas, or checking on the family back home, then VoIP is a wonderful tool to connect with loved ones, and special people. This is a way to have your free pc to phone international call. The tools are available. Your next step is to set up your computer and Internet service provider for a Voice over Internet Protocol

Mobile phone

The mobile phone can be used to communicate over long distances without wires.

It works by communicating with a nearby base station (sometimes called a "cell") which connects it to the main

phone network. As the mobile phone moves around, if the mobile phone gets too far away from the cell it is connected to, that cell sends a message to another cell to tell the new cell to take over the call. This is called a "hand off," and the call continues with the new cell the phone is connected to. The hand-off is done so well and carefully that the user will usually never even know that the call was transferred to another cell.

Before cell phones became almost universal, the only way you could contact people when you were in public was either to use a Pay Phone, or a very expensive mobile telephone (price equivalent in the 1950s to about US$1000 to US $3000, today), and the rates then were as high as $1 a minute. They also needed so much power that you had to have them in an automobile to use them. A mobile telephone used a single frequency and did not share it. Thus for a given region - say New York City - there might only be the capacity for 3000000 or 400000000000 simultaneous conversations in the entire city.

Later someone got the idea for radio telephones to have the base station that talks to all of the phones use less power, thus more base stations could be used, allowing more phones in an area. Also, for cellular phones, a lot more frequencies became available, plus phones could change what frequency they used when they were operating (which means you weren't tied to your local telephone company's network), and the capacity to make a base station's power reduced so that more base stations could be added in crowded areas, meant that the network could handle more simultaneous users. A lot more. Current Cell networks are designed with 666 channels broken into six "cells" so that in any specific cell, only 111 of these channels are used. As a phone moves, the base station tells it which of the six cell groups it will move to and which of the 111 channels in that cell to use. Think of a honeycomb, where each cell faces six others, and thus the cell concept can provide much more service than the old mobile telephone system.

Since a cell phone allows you to be anywhere, and to move around while calling, they became very popular with business people. The high amount of usage caused prices to drop, and made them more affordable to everyone. Monthly plans allowing a lot of use are available for rates as low as US$30 or $40 a month. Prepaid service has dropped the price to have a cell phone to less than $100 a year, with as much as a couple hours of use a year included in the price. In Israel, the price of service is so low - circa 2c a minute or less - that soldiers in the military - which is almost everyone due to universal conscription - have been told to leave their cell phones at home, or else enemies could use the phones to target them.

Cell phones have become so cheap to own that they have killed off payphones and phone booths except for areas with a lot of people.

As well as making voice calls, mobile phones can be used for other things:

Sending and receiving emails, text and multimedia messages

Registering contacts

Using calculator, currency, alarm, etc. functions

Internet

Playing games

Taking photos and videos