There is growing consensus that cell phone antennas may be harmful to humans due to the huge volume of electromagnetic waves that get concentrated around it during the receipt and placing of calls. This danger is even further aggravated by cellular manufacturers who place the internal antennas close to the earpiece.

Mobile phones are basically radio sets and therefore emit energy radio signals that can penetrate the body and cause harm.

There have been several commissions on the study of the effect of mobile phone on the human body and the most pronounced has been The Stewart Report which suggested that radio waves indeed penetrate human bodies from mobile phone antennas and specially recommended that children who obviously have softer skulls be extra careful and use the device sparingly. The report further went on to state that the brain cells of children are not as fully developed as those of adults and can therefore be at greater risk as they absorb the radiation more than fully hardened adult skulls.

These hazards may exist but cell phones have become part of everyday living like cars and cannot be dispensed with. In the light of this fact, doing away with our phones may not be a practical approach to solving the health hazards issue. Rather we can adopt some habits to mitigate the effects of the radiation.

Children should not use cell phones for long calls. They should sue land lines instead so as to minimize the length of contact with the radiation emitted by the device.

Consumers should buy phones with low specific absorption rate (SAR). Mobile phones should be kept away from the body as much as possible. They can be put in the purse or bag and only brought into contact with the body when there is the need to make or receive a call.

Users should try to keep their conversations short.

If possible, SMS messages can be sent instead of calls so that there is less contact with the body especially around the skull area.

Keep switching between both ears so that one particular ear does not absorb the full brunt of the radiation all the time.

Radiation emission is at the highest when the phone is trying to connect so keep the phone away from the skull till you see the call fully connected.

Weak signal results in higher radiation so avoid making calls in areas where reception is poor as the device will try to boost its power to get you a connection and resultantly bombard you with more radiation.

We cannot do away with cellular devices looking at the convenience they have ushered consumers in. Nevertheless, we can adopt some helpful attitudes to minimize the harmful effects this technology is bringing to mankind.

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Man is a social animal. This feature instigates him to develop sundry ways to communicate with his fellow beings. From pigeons to postmen, from small messages on bits of paper to lengthy love letters and telegrams?we have now have a smart and trouble-free method to interact with our friends living even in farthest corner of the world. This technique is of mobile SMS or the Short Messaging Service.

The Basics of SMS

In the age when science is dominating the world, SMS via our mobile phones is a boon of technology. We simply type a text message in the ?write message? section of our mobile. This message can be formal or informal. But every phone has a fixed limit of number of characters that can be written. For instance, some have it at 160, while others allow you to type 190 characters on a single page. Once through with writing, we send the message to its desired destination by entering the number of that individual?s cell phone. As soon as the message is delivered, it is signaled by a delivery report. The instant conveyance of message depends on the network of the company whose mobile connection we have.

The Merits of SMS

1. Cost effectiveness- the foremost wonderful aspect of text messaging is its inexpensiveness. While an international call made to say hello, exchange greetings or for any such reason will cost you several dollars, an SMS will do the same job in a significantly smaller amount.

2. Comfort- text message is perhaps the most convenient way to communicate. It enables you to chat with your friends and relatives anywhere anytime. The abbreviated coded text message language is pleasing and time saving.

3. Express your opinion- didn?t you vote via an SMS to your favorite singer in American Idol? SMS is an excellent way to state your choice in matters of public concern. SMS also gives us a chance to win numerous contests happening on TV.

4. Spontaneity- another remarkable feature of text messaging is the speed with which it connects us to people. SMS surpasses the oceans and seas and reaches its target in a few seconds. Text messages can be written and sent while you going to the office, sitting idle in a bus, waiting for a cab, having your meal or even watching television.

The Drawbacks of SMS

1. Text messaging can be addictive especially in case of children. Excess of messaging not only contributes to your cell phone?s monthly bill but it also results in lack of concentration in studies. Porn pictures and clips sent as SMS steer the budding minds in wrong direction.

2. Though SMS has an edge over making phone calls yet it might not serve us with the authentic situation of the person concerned. X might write of his being fine while he is unwell. Whereas speaking to someone over the phone, by and large makes you aware of his actual condition.

3. SMSes are liable to failure due to network problems and the like.

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1. What’s the difference between analog and digital phones?

Analog phones operate on an older and less effective technology. This technology doesn’t scale well and is more costly. Analog service is not compatible with numerous new features. Digital phones are lighter and more compact and have a longer battery life. When you are inside of a calling area the quality is better than analog. Digital phones support new features like caller ID, text messaging or wireless internet services.

2. What is a Dual Band Phone?

A Dual band phone is a phone that can operate on an analog and digital service.

3. What type of battery has the longest life?

Lithium-Ion or Li-Ion batteries have the longest life. They also happen to be the lightest in weight. The two pluses means there is minus attached, which is price. A li-ion battery will always be the most expensive type of battery available.

4. What’s the difference between the Stand-by time and Talk time?

Your phone is in standby mode when your phone is on but you aren’t talking. The power consumption is minimal and the phone can stay in this mode for a longer period of time. When you are using the phone you are using talk time. This consumes battery power at a much quicker rate. Your battery life will be somewhere between talk time and standby time

5. What is a roaming charge?

A roaming charge is when you make a call from outside of your calling area. Your calling area is defined by plan local, regional or national.

6. What are peak and off peak hours?

Peak hours are during the day when the cellular networks are very busy. These minutes are at premium and your plan will typically include the smallest amount of these. If you use more than your allotted peak minutes they will be billed at a much higher rate than off peak minutes. Off peak is the exact opposite of peak time. Each cellular provider has their own definition of off peak.

7. What are anytime minutes?

Anytime minutes are simply put minutes you can use anytime, peak or off peak. On most plans you will use anytime minutes first.

8. Do I pay for the call when someone calls me?

Usually yes. You are billed for the airtime when you receive a call. However some service providers are offering unlimited in network calls.

9. Should I buy a cell phone or look for a free cellular phone?

Free phones generally speaking don’t have the latest features, they are anywhere from 6 to 12 months behind. Also, free cell phones generally come with longer contracts. But, it is still possible to get a great deal on a free cell phone.

10. What to do if you want to upgrade/downgrade or cancel your service plan?

You can usually upgrade to higher plan without any cost. Some may force you to extend your contract for 1 to 2 years from that point. Downgrading your plan is often times not an option and when it is there is usually a penalty or fine.

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Do you remember the days when a cell phone was just a cell phone? You pulled it out of your pocket to make a call and that was about it. Now your cell phone can take pictures, send text messages, play music, become your personal organizer, play games, and even function as your GPS.

I?m not talking about the GPS chip embedded into all current cell phones. That GPS is only present to help emergency crews locate you in the event of an emergency (the same way that your landline will give away your location). I?m talking about new Smart Phones that actually integrate with new GPS devices, allowing you to receive voice guided driving directions, trip planning, toll road avoidance, on the fly off-course rerouting, and now even real time-traffic information that will allow you to reroute to avoid heavy congestion. And for the cell phone purist, these new phones can even make and receive phone calls!

And just like other new GPS systems you?ll have access to a huge database with points of interest. Need to know the nearest gas station? No problem. You can also find the nearest restaurant, movie theatre, and even a parking garage ? which is especially helpful if you?re in an unfamiliar city. And if you happen to be somewhere where you don?t have a detailed map ? no problem ? this isn?t just a GPS unit, it?s a Smart Phone so you can download the map you need. The new SmartPhone GPS devices can easily replace your in-car navigation system.

Probably the most widely used device for making your Smart Phone an advanced GPS is the TomTom Mobile 5 http://www.gpsmaestro.com/tomtom/tomtommobile5). It?s currently only available for a limited number of Smart Phones (check TomTom?s site for a list of supported phones). But for the phones it works with you?ll get an impressive list of features and you?ll even be able to change the voice of the navigator to something more entertaining (Darth Vader, anyone?). If you happen to live in the UK, you can also get access to real time safety camera information.

This is, of course, just the next step in the ever evolving cell phone. Soon new cell phones will have GPS navigation technology built in and probably more features you?ve never even thought to ask for.

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A quick Google search will produce countless articles trying to understand the popularity of ‘ringtones’; hundreds of bloggers waxing lyrical on the benefits of personalising their cell phones. Interviews with ?experts? profering sexy theories about ringtones and identity construction lend an academic seriousness to the Crazy Frog phenomena. The figures are pretty serious too, in the U.S.A. alone, the Yankee Group predicts, ringtones will be worth $500 million. That?s roughly the GDP of Fiji.

Obviously our cell phones needs a voice, but does that voice need to be a polyphonic adaptation of ‘Living on a Prayer’?

The latest figures indicate that young people are the greatest consumers of mobile music. According to one UK survey, 15-24 year olds account for 80% of ringtone spending. Studies by Nick Anderson of Sussex University show that young people are far more aware of the “brand personalty” (the particular identity affiliated with certain brands) than older generations. Anderson suggests that teenagers can deduce a person’s character, likes and dislikes, by their branded possessions. Considering the amount of branding in the music industry, it’s not unreasonable to say that popular musicians have their own ?brand personality?. So, your 50 Cent ringtone, for example, communicates not only a your taste in music, but also your compliance to the whole ?Fiddy? meme. Ultimately, for brand savvy youth, this says something about your personality, which, you hope, everybody within earshot understands.

If a cell phone rings in the woods but nobody is around to hear it, are you still down with 50 Cent? Ringtones are about personalization, and about public performance. The publicness of the ringtone is an integral part of its appeal. It’s unlikely that anyone would have a ringtone on their landline. In a noisy urban soundscape like the city, silence is an anomaly. Personalised ringtones are simply another irritating sound in the hullabaloo. Most of us manage tune out the sounds imposed on us: muzak, hawkers, traffic, the O’Reily factor, so why try and impose yet another squawk? Perhaps the ringtone is the audio equivalent of territorial pissing; thirty seconds in which YOU pick the soundtrack. For a few moments when your cell phone rings the 50 Cent meme is the most powerful in the sonic environment. Where ?Fiddy? is relatively redundant as a social force, certain ringtones allow citizens to demonstrate their dissatisfaction or support of a cause. Independent radio station WFMU have created a variety of anti- George W. Bush ringtones available for download, while engadget.com allows users to choose their preferred presidential candidate ringtone. Condemning other commuters to several cycles of 50 Cent, the theme from ‘Star Wars’ or a Dubya quote demonstrates your individual tastes and allows others distinguish you as either nemesis or brethren.

In our efforts to relieve poverty, impede environmental disaster or cure the global AIDs epidemic, ringtones are totally and utterly useless. When it comes to enforcing the myth that every individual is special, the artificial uniqueness of a personalized ringtone is just the ticket. Paradoxically, this demonstration of individualism is only really effective in a crowd. As far as this writer’s concerned the real purpose of ringtones lies in their ridiculousness. A recent gathering of sensible adults turned to hilarity thanks to an improvised game of “Name that tune”. Using Foovely’s ringtone preview function, those gathered took turns choosing snippets of songs for the party to guess. Recognising a song in 30 seconds is SO much harder in monophone!

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There are several factors that differentiate satellite phones from cell phones. How they work, their utility and cost just to name a few.

Functionality Differences

Cellular phones or cell phones use small stations or towers known as ?cells? from which they receive their signals and to which they send signals. As the user moves from one destination to the next, his call or his cellular service is passed on from cell to the next. The mobile handset is thus in continuous connectivity with the different cells of the network provider and the individual can talk on the move. This is thus known as mobile connectivity.

Satellite phones on the other hand, do not use ?cells? or towers. They work with satellites orbiting the Earth. These Low Earth Orbiting or LEO satellites receive signals from the satellite phone handsets and send signals to these handsets as required. The satellite phones send signals to the satellite, which passes it on to a gateway. The gateway routes the calls to the receiver. Also, all calls made to the satellite phones are routed via the satellites.

Differences In Area Coverage

Cellular phone companies generally provide network coverage in densely populated areas. Since the companies have to set up ?cells? to be able to provide coverage, they need a high number of subscribers to justify setting up the cell. In thinly populated areas or remote areas with difficult terrains, the cost of providing coverage is often more than the expected returns. Hence, while cell phones work great in densely populated areas, they may or may not work in inaccessible locations.

Satellite phones communicate with the LEO satellites and not with any ?cells? on Earth. Hence, the coverage provided by satellite phone companies is far greater than that provided by cellular phone companies. Since satellite companies don?t have to set up cells from destination to destination, they offer service in a wider area and some even offer it across the globe.

Usability Differences

Cell phones have become an absolute necessity for practically all urban residents. In fact, a large number of people are opting to have cell phones instead of the traditional landlines. Cell phones are perfect to use while on the move in metropolitan cities. For marketing and sales executives, employees, CEOs, managers, mothers, students and almost all people in different walks of life - cell phones provide a high value service. They are also a great option to surf the net, listen to music and exchange photos. In short, cell phones have become the single all-purpose media electronic instrument of the 21st century.

Satellite phones on the other hand, are perfect for use in remote and thinly populated areas where cellular companies do not provide network coverage. Satellite phones are also extremely handy in situations when cellular networks go down. Such situations generally arise in times of natural disasters like hurricanes, earthquakes and floods when the ?cells? that route calls are damaged.

Satellite phones have the advantage in such conditions since natural disasters do not affect the LEO satellites. Hence while cellular phone networks are down, satellite phones continue to function as normal. This has indeed saved many lives in the recent past.

Satellite phones are also the perfect option for companies that have research laboratories or departments in isolated areas like Alaska, Siberia and Antartica. Adventurers who frequently travel to densely populated tropical forests, high mountain areas and across oceans also prefer the better coverage provided by satellite phones.

Differences In Cost

As is to be expected, cellular phones are far cheaper to operate and maintain than satellite phones. The cellular phone handsets as well as the subscription plans offered by cellular service providers are extremely affordable and cost barely a few cents per minute.

Satellite phones on the other hand are expensive. The satellite phone hand sets or the fixed satellite phone sets cost a pretty penny as does the satellite phone service provided by leaders in the industry like Iridium and Globalstar. At an average satellite phones can cost anything from $600 to $1000 with costs going up to $1.50 per minute for talktime.

Thus, cell phones and satellite phones are both a boon to the world of communication and both service users in different ways and under differing conditions

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