GPS Overview | GPS System

The use of GPS satellite navigation systems has revolutionised automotive travel in the few years that it has been an option for drivers. It used to be the case that if you were driving anywhere that happened to be a long distance away, and you were a poor map reader, then you would have a very difficult time getting to your destination unless it was extremely well signposted. With the GPS system now being freely available to motorists, such problems are a thing of the past for anyone who has a sat nav system installed in their car. So how did this some to pass?

Well, the GPS – short for Global Positioning System – was developed as recently as the Eighties as a military application by the United States Department of Defence. Back in the early Eighties it was used chiefly as a way of detecting hostile aircraft, but as time has gone on and clever people realised a worthwhile civilian application for the system, it has become a major part of road travel for an increasing number of motorists.

The GPS itself is a system consisting of at 31 orbiting satellites, from which the system on your car dashboard is able to capture signals. As long as your own GPS device can take the data from three satellites, it can pinpoint your position anywhere on the planet.

So far, so simple. Most of us know, at any given time, whereabouts we are just by looking out of the window, but the clever bit in a GPS navigation system is how it allows you not only to know where you are, but also where you are going, or to be more specific, how you are to get wherever you want to go as quickly and as efficiently as possible. This requires not just the information from the satellites, but also a lot of data stored within the GPS receiver.

By constantly beaming back signals, your GPS receiver is able to collate data telling you how fast you are going on average, how far you are from your destination and how long it will take you to get there going at your current average speed. Some of the cleverer, more recent models will give data on such matters as how much petrol it will take you to get somewhere, and what distance you will be able to cover with the fuel currently in your tank.

In conclusion, GPS technology provide more enjoyful travelling to its user as it has a lot of features that support information about user vehicle statistic or even the spatial statistic between user and destination.

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VoIP in HiLight | VoIP Service

Using a VoIP service to stay connected has never been easier. Modern technology allows anyone, in any part of the world, to call another person for free. The technology is known as VoIP, or Voice over IP. The name itself sounds a little complicated, but it helps to explain the concept. Once you understand more about VoIP, and learn how it benefits you, you will fall in love with it.

Traditionally, when you make a long distance call using a land line or a mobile phone, you have to incur hefty International calling rates. You have very little alternative because these rates are set by the telecommunications giants - the telephone companies. Before the age of the Internet, the only way to make a long distance call is through the telecommunications network - your land line at home or in the office. That means you are at the mercy of the phone companies. Whatever they are charging you, you will have to pay.

Fortunately, those days are now over. Voice over IP technology allows one person to call another by transferring voice data over the Internet. This means you need an Internet connection for the calls. If you are calling someone within the same VoIP network, you don't even need to pay. But if you attempt to call someone who is using a land line or a mobile phone, some charges may be incurred. However, these rates are far better than what the phone companies are charging.

VoIP technology itself means that as long as your have the equipment to convert analog voice data to digital voice data, you can use the technology to make phone calls. The special equipment you need could be some hardware or software. For example, many people are already using VoIP software to make calls to one another over the IP protocol. Such calls are free, as the data is transferred over the Internet.

To take full advantage of the technology, start by joining a VoIP network today. You should get all those who are close to you to join the same network. This will enable you to call them without having to incur hefty long distance charges.

On top of the savings, you also get a personal user name and password, which you can use to login at the service provider's website. Upon logging in, a host of special features will be presented to you, and you have full control over the features you want to activate (or inactivate).

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VoIP in HiLight | VoIP Mechanism

Have you ever wondered how VoIP services work? Perhaps you have seen your friends making long distance phone calls with a special phone that they connect to their laptops, and you are curious about how the whole setup work. If so, perhaps you may find this article useful.

A VoIP service is also known as Voice over IP. This label is used to describe transferring of voice data using the IP protocol. The IP protocol is the most commonly used protocol around. On the Internet, digital data is moved around using this protocol. When you play multiplayer games, many servers use the IP protocol as well. As you can see, there are many uses for the IP protocol. The challenge here, is to find a way to convert voice data into digital format that can be transferred over the Internet using this very same protocol.

That has now been accomplished via 2 methods - using hardware of software. Let's discuss about hardware based equipment first.

Special hardware, mostly known as IP phones, allow an individual to make a voice call without the use of a computer. The gadget is able to convert voice into digital audio, and send it over the Internet. The IP phone will, of course, have to be connected to the Internet (such as a DSL line). You can also connect the IP phone to a laptop of a desktop to use as a handset.

If you do not have an IP phone, you will need special software to perform the conversion functions. In this case, you must have the use of a computer system. If you don't have a handset, your next best alternative is to use a pair of headphones with a mic. Your mic doesn't have to be a professional mic. Any ordinary mic will do. Your software should allow you to test the mic to make sure that it's properly connected.

The next thing you need is a VoIP service provider. These service providers make it possible for you to connect to another person within the same network, usually for free. The assumption here is that the other party must also be connected to the Internet, and he or she is also a member of the same VoIP network. There are 3 scenarios in which you have to pay some fees.

1. You call someone who is not a member of the VoIP network that you are in.
   
   
2. You make a call to a traditional land line. The service provider make this possible with their sophisticated equipment.
   
   
3. You call someone on a cell phone. It doesn't matter where the location is. As long as there is a phone signal, the other party will be able to take the call. This works in similar fashion as calling to a land line.

Hence modern, sophisticated and also expensive equipment is needed to build the possibility for making land line calls through VoIP, VoIP service provide will commonly charge for some fees to user who uses this feature. In facts, the cost of VoIP to land line is lower than conventional land line to land line call. If user want to call VoIP to VoIP, user won't need any cost at all (except to pay internet connection). So, VoIP is a really cheap solution to make a call.

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