A satellite phone is a kind of mobile communication device that is much like a cell phone but it connects via satellites orbiting outside of the Earth’s atmosphere as opposed to the cellular towers located across the Earth’s surface. A satellite phone is needed when the user is traveling to remote areas where standard cellular service would not be available or when an absolute availability and continuity of service is essential.

When satellite phones began to be used they resembled the size, shape, and weight of the bulky cell phones that were common in the late 1980s and early 1990s. They typically had a long retractable antenna that aided in receiving and sending communication signals. Today, satellite phone technology has allowed for smaller phones that are the general size of a typical cell phone. Up and coming technology in satellite phones shows no immediately distinguishable difference in the look of the satellite phones from that of cell phones.

Some satellite cellular services offer coverage over the whole Earth, while others offer service in specific regions. The coverage depends on the location of the satellites for that particular network.

Satellite phones which you transmission satellites in geosynchronous orbit can offer almost continuous global service coverage with only about three to four satellites. The satellites themselves are extremely heavy, so they are quite costly to construct and launch, however, since there are only a few satellites used, the actually launch cost is reduced. The way these satellites are able to offer a global coverage with only a few satellites is that they are actually positioned twenty-two thousand miles above the earth's surface.

The bandwidth of geosynchronous satellites is higher than other systems. These systems can also provide portable satellite Internet capabilities by using terminals the size of a lap-top. The speed of the Internet connectivity ranges from 60 KB to 512 KB.

A problem with the geostationary satellite systems is that even when a large amount of sky is available, if the line of sight between the satellite and the phone/laptop is blocked by an obstacle such as a mountain, steep hill, or forested area, the user will have to find higher ground in order to make a connection.

A slight inconvenience with these systems is that the high altitude of the satellites causes a noticeable delay while using data services or making a voice call.

Another problem with satellite systems that are geostationary is that in a number of regions, even where there is a big expanse of open sky, the line of sight from the phone to the satellite is hindered by obstacles such as forests and steep hills and the user has to locate a higher spot before using the phone. This doesn't happen with Low Earth Orbit (LEO) services - even if the signal is blocked by something, a person can wait just a couple of minutes for another satellite to pass overhead

When using a satellite phone while in areas where no other communication is available, especially when there might be a need to call for emergency assistance, the low Earth orbit, or LEO, satellites provide faster coverage that covers all areas without service gaps. If there is a time when there isn’t coverage while there is full access to the sky, the user need only to wait a few minutes until another satellite comes into range, which never takes very long. LEO satellites orbit the earth at a high rate of speed, completing it’s orbital time in 70-90 minutes. They are positioned much lower in the sky at only 400 to 700 miles in altitude. A significantly higher number of satellites are used for these systems.

The cost of making calls from a satellite phone range from 15¢ to $2 per minute. Calling a satellite phone from a standard phone, such as a landline or cellular phone, can cost anywhere from $3 to an astronomical $14 per minute. When making calls between two satellite phones on different systems, the price per minute soars to the $15 per minute range.

Satellite phones vary significantly with service availability, plans, features, and coverage options. Because competition is growing, a wise buyer will be careful to carefully compare plans ans contact each company being considered to ask if there are any specials that are currently being offered for the location the phone will be used in.

Satellite phones are a long way off from cell phones, but the safety and security you will feel while out of touch with the rest of the world makes them a worthy investment and essential tool.

Today’s cellular phones almost have to have a camera as a standard feature or consumers won’t even bother looking at it, almost as silly as waiting for the lottery to reach 50 million before you’ll buy a ticket. Camera phones have become one of the most sought after features next to MP3 players on cell phones. Everybody wants to have a camera on their phone. The problem is most people don’t know what to look for. Camera phones are not the same as a still camera or digital camera.

Cell phone cameras are designed to give you an option of taking a still picture or if your phone has this feature, shooting video. Often time’s people will snap a picture with their cell phone and choose to make it their background photo. With all the technology out today, having a camera phone is a nice feature but it’s not widely used as a camera. It depends on what kind of camera you have in your phone. The makers of your phone concentrate on the connectivity and ease of making calls. A camera built in is nice but it shouldn’t replace a regular camera. There are also reasons that people don’t want a camera on their phone. It uses up a lot of memory to store your pictures unless you transfer them to your computer.

Cell phone camera range from simple to pretty complex, it depends on what you’re going to be using you cell phone camera for, you might want to explain to the salesperson because they are selling you the brand and the features first. Let them know what you want and they can steer you towards the best cell phone camera that will fit your needs. Don’t get stuck with something that you won’t use.

A digital camera is used for taking pictures. It gives you the option of seeing your pictures as soon as you take them and many require memory cards so you can download your pics as soon as you’re near a PC. Cell phone cameras also store your pictures so that you can review them and show friends but unlike a digital camera, the difference is in the lens. Cell phone cameras are not high-end instruments; they are features, plain and simple. A digital camera, however, starts with pixels and zoom capabilities, some might argue that you have two cameras to take pictures with but digital cameras are designed for one purpose, your phone has several functions.

Although you might have more fun personalizing the features on your phone since it’s a multi laden gadget you’ll see that in addition to making phone calls and storing information is design and purpose is to used to communicate. Digital cameras have many specific features for taking pictures and downloading them so you can crop them and even print them from your camera. Cell phones don’t offer such luxuries.

If you just need to have a camera on your cell phone then its best to shop around for that feature first. Many times, you’ll find that if the camera is a high-end part of the cell phone then the rest of the features are top notch as well. Search for a camera phone that allows you shoot in dark light and with video. Always make sure to add extra memory to your phone if it’s going to replace your current digital camera. You don’t want to be shooting or recording and run of out of memory during an important event.

The days of sitting at a desk while accessing the internet are fast becoming a thing of the past. Desktops won’t be obsolete any time soon but the allure of being on the go and being able to surf the web gives those who want that advantage a whole new world to explore. Cell phones have become a norm for everybody, no longer are they a luxury but they’ve almost become a necessity in the business world. The private sector knows the importance of keeping in touch with the world around them; the internet has become our encyclopedia for a new generation. Imagine trying to operate a business today without it, you’d close the doors by noon.

 Cell phones often advertise web access, it's almost become a standard feature. Older cell phones don’t offer it, but a quick upgrade is all you’ll need to be mobile, literally. Since everybody seems to be on the go these days being able to check your e-mail or find out the latest news is important. Nobody wants to be left out of the loop and having mobile internet access is the best way to still get your news on the go. Cell phones often charge for internet access so it’s best to limit your time on the web through your service provider. Sometimes you can’t always surf the web on your phone. The connection might not be good or the system may be bogged down with other users. It’s a drawback but one that’s considered par for the course when you’re dealing with a cellular web connection.

Another way to access the internet is through your laptop. All laptops have a USB port, this allows you to interface with the computers main drive and have the internet whenever and wherever you want it. AT&T sells an internet USB card that inserts into your computers USB port, you can surf the web from any location. It’s great for those times when you’re traveling or you can’t find a Wifi connection or if you do, it’s secured and you can’t access it legally.

USB ports have recently been utilized because Wifi hot spots are often secured like in hotels or libraries. A special code is required or you’re limited in your use or time restraints are too harsh. Many laptops come with a feature that allows you to bypass using an internet card and connect directly to the internet with a Wifi signal finder. When you turn your laptop on an internal drive alerts you to a Wifi signal in the area. You can log on and surf the web, but you need to be aware that not all Wifi hotspots allow free internet. Some internet café’s require you to purchase something if you’re going to sit in their bar and sip Chia tea while blogging about your life.

Since cellular phones are limited in opening more than one page of a web browser, they aren’t considered an ideal way to surf the web. If you just want quick news and one page at a time information, then they will work just fine. Having a USB internet card allows you surf the web without restrictions, it can be used in other laptops so it’s not exclusive to just one USB port. Wifi is great if it's free for you. If you have found a signal that’s secured, it's best not to piggyback on that signal and use it as your own. It’s considered illegal and could land you in trouble.