SMS, or Short Message Service, is the technology behind what we often refer to as ‘text messages’ or ‘SMSes’, as well as what allows for news alerts on cellular phones. In recent years SMS has ballooned to over a 50 billion dollar industry and is quickly taking the communications world by storm.

Short Message Service actually refers to a framework that uniquely allows computers, or in this case phones, to communicate with each other without the need of a central hub. With SMS, phones can find each other, send short packets of information back and forth, and do it all without any central computer to guide them. But because the system does not rely upon fixed lines like a land based telephone system does, the amount of information that can be sent at one time is limited in size. This depends on the language spoken, but for English letters this typically means around 150 characters (Chinese and Japanese letters are limited to 70).

Quite recently, however, new developments in the technology have allowed for even longer messages to be sent. Long or Concatenated SMS is a development that allows multiple messages to be combined to form a single message. In effect, what happens is that your phone actually sends out a few smaller messages and then the receiving phone simply compiles those messages so that for users on both ends, it appears as though the message were cohesive. While there are some limitations, the brilliance behind SMS is that because there is no need for central hubs, and thus the system can be expanded indefinitely without any concerns of it slowing down or becoming more expensive.

The most common form of SMS is ‘texting’. This usually takes place with a cellular phone in which individuals use the letters behind the number pad on their phone to spell out words and phrases and then send them out. Because many companies charge by the word, individuals have come up with a sort of ‘texting slang’ to cut down on the amount of words required to convey a particular message. For example, ‘gr8’ and ‘BTW’ mean ‘great’ and ‘by the way’. In addition, other words have just been shortened, such as ‘lata’ to mean ‘later’. Most users simply pick up the lingo through frequent use, and although some slang is widely understood and used, other shortcuts are developed within circles of friends and family.

The major advantage of SMS is its price. The price is typically $0.05 per message, a significant cut below that of traditional telephony and cell phone per-minute charges. The savings of SMS has its roots in the nature of the technology. Short Message Service, like SIP, is modeled on a peer to peer model and not a cog and wheel like traditional communication systems. This means that instead of having to route a message through a central hub, your text goes straight from you to its destination. This has radically cut down on the cost of SMS implementation and led to its overwhelming popularity throughout the world.

Short Message Service (SMS) has radically changed the face of the communications industry. While the practice has become quite common throughout the world, it has only recently become popular here in the United Stats, a growth partly predicated upon, surprisingly enough, its featured role in the show American Idol. The fact that ‘texting’ is quickly gaining both in popularity and recognition in the United States is not surprising however, due to its ability to offer users a cheap, quick, and often fun way to communicate with friends and family.

Recently, many new online gaming services have been introduced. The world is having a visible affect on the online gaming industry, as more and more people turned towards playing and enjoying online games.

Games on net were once an imaginary phrase, but since the introduction of thousands of user friendly and easy operating games on the Internet, people are finding that fiction has become reality.

But, now you can read about what you want to learn and play free online games at paying no money. This is the ultimate playing way for anyone frightened by the complex layout of games. To play online games, read introduction to the games and play along.

Another main reason people want to play free online games is to get refreshed from the monotonous and hectic routine. With games on net, all of that excitement can be put into action. The people may choose to play free online games for recreation. Many people just want to chill out at the end of a day, and playing with a pool or slot machine etc. doesn't provide sufficient amusement.

According to a leading company’s survey on online gamers, women around or above age 40 are the informal gaming hardcore, playing games at an average of nearly nine hours a week. As far as men of all age group are concerned, they spend nearly six hours gaming while women of all ages average to around seven hours per week. This show increasing urges to play online games in all age groups and both genders.

The report also unveils an interesting point, 54 percent of adults said that they play games to wipe-off stress and the 20 percent of teens who play for just relaxation.

With free online games one can experience the excitement of playing, without the fear of losing any single cent. Many sites on the Internet also let you to post messages in forum and even facilitate to chat with friends while you play.

This is excellent news for gaming authors and websites, as the more-n-more people are moving towards playing online games on net, the more excitement around the globe will be.

All in all, it can be pretty relaxing experience and certainly it is becoming very popular time-pass.

Skype is an internet telephony provider, where users who have installed the Skype client on their computers can talk to each other free of charge using VoIP (Voice over IP). The Skype client is also available for free and the program can work across firewalls and NAT, thereby allowing anyone on the internet to talk to anyone else.

Skype was developed by the founders of KaZaA and is currently owned by eBay.

For communication with traditional phone systems, Skype has a paid service which allows a computer to dial and receive calls from traditional phones. In the paid service, voicemail is also supported.

Skype maintains the users contact lists online supports video conferencing.
Skype is platform independent and can be installed on Windows, Mac and Linux. However, the functioning of Skype is not a roller-coaster ride with Linux and Mac. It works best with Windows. Skype also works with PocketPC.

Since Skype uses a peer-to-peer model rather than the traditional client-server model, the infrastructure can scale up very easily without any need for major upgrades. Incidentally, it is rumored that Skype has to manage only the login servers and the entire routing is taken care of by the peers. As of this writing, 100 million plus customers are serviced by Skype.

The unpopular part of Skype is the mechanism for call routing. Let’s say, UserA is trying to communicate with UserB. The call from UserA to UserB may happen directly or can be routed through another user, UserC. In this case, UserC becomes a ‘Supernode’ and is functioning as a router between UserA and UserB. This unduly penalizes UserC for being a part of the Skype network. Also, the software is a closed source software and proprietary. Hence no customizations or add-ons can be added by software developers.

Although the product has not been reverse-engineered by independent developers, Skype is believed to have made good use of encryption technology in its product and the software codes are well-written.

The average age of Skype subscribers is 29.7 years. About 46% of the subscribers are from Europe and 13% from China. These numbers are derived by SR Consulting, which reviewed some 4 million users profile of Skype.

Skype client is very easy to set up. For people who have not set up a Skype client, here are the steps:

1. Download the software.
2. Install the software. It automatically configures itself for your computer and network.
3. Register as a Skype user.
4. Get a headset for your computer.
5. Locate another Skype user. Searching tools make this easy.
6. Click on a Skype contact name. You can do this from a variety of places within the client application.
7. Talk free to people anywhere in the world.

The clarity of the call in Skype is amazingly clear and most people don’t appear to be talking from the other side of the world.

Apart from making regular calls to Skype users, it also facilitates conference calls between a maximum of 5 users, file transfers and instant messaging.

Netgear recently announced a Skype compatible phone. The phone removes the dependency of placing calls from the PC. Instead it connects directly to a WiFi router for connection. Similar products from other companies are also in the pipeline.

What is a Mobile Phone Jammer?

What causes a traffic jam? Too many vehicles moving along the same road, right? Also the reason for a traffic jam can be that there are other vehicles on the road which are blocking your path to speed.

Similarly, a cell phone jammer is a device that emits signals in the same frequency range that mobile phones use, effectively blocking their transmissions by creating strong interference. So if someone is in the range of a jammer, he will just lose his signal strength and accuse the service provider without knowing that there is a jammer which is responsible for the signal loss.

Why do we need mobile phone jammers?

There would be no need for jammers if everyone followed phone etiquettes. People who do not follow phone etiquettes like speaking slowly and moving away from other people while talking on the phone are inconveniencing others at banks, offices, public transport systems, hospitals etc. So if you are one of the people annoyed by mobile phone talkers, you can buy a pocket jammer. It can in effect kill the signal of the person speaking on his mobile phone while sitting next to you in the train. This will not prevent the other person from talking but will force him to move away from you, under the belief that the signal is bad at the place where you are sitting. This can be done with a flick of a button.

Although it would be a desirable solution for a lot of people, it can cause havoc to the business of the mobile phone service provider. Hence it is banned in most countries except for special zones like hospitals, military and government offices.

Cell phone jammers are available in multiple shapes depending upon their ‘power’ to block signals in a specific range. A small personal jammer may resemble a cell phone and have the capacity to block signals for around 50 – 100 feet. This is a good enough distance for a person to not get distracted by an ongoing cell phone banter. There are more powerful jammers which resemble networking equipments with wires, that have the capacity of blocking cell phone signals for a few miles. This can be useful around a Presidential motorcade, for example, to keep terrorists from detonating a bomb from miles away or even from outside the country. By wiring a cell phone to explosives the device can be triggered by simply placing a call to the phone, as was done in May 2002 by Palestinian militants in Tel Aviv when they targeted an Israeli fuel depot by rigging one of its fuel trucks.

Law enforcement also uses cell phone jammers in hostage situations to keep the suspect isolated, and in South America, banks use the devices to prevent robbers from tipping off outside accomplices to departing customers leaving with large withdrawals.

There are many businesses who would love to use jammers like restaurants, theaters, hospitals, libraries to name a few. The reason for the desire is to prevent the patrons from having to forcibly listen to the banter of a possibly-unaware-disturbance-creating-cell-phone-user.

Personal cell phone jammers start at about $250 (U.S.D.) and are widely available online despite their illegal status in most countries. The top manufacturers reportedly sell primarily to military and law enforcement but will sell the devices to anyone with the disclaimer that it is up to the buyer to make sure the device is legal in his or her country and that the buyer assumes all legal responsibility for buying, owning, or using the device.

What would happen if a jammers are made legal?

Obviously, the cell phone industry will run out of business, since although it is intrusive at times, there are marked benefits of cell phones as well. And if jammers are in use publicly, no matter what amount of infrastructure investment is made by the service provider, the end user will still not get a guaranteed good service.

Wrong handling and unsafety use of Cell Phone can lead to accident and loss.!

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Talking while charging. Plz Do them separately.