Gsm Technology

Department of Management Services (DMS) has chosen to expand their applications and services via TCP/IP and Internet access. DMS uses a widely used proprietary scheme: IBM’s Systems Network Architecture (SNA) which provides support for TCP/IP (Transmission Control Protocol/Internet Protocol). SNA architecture is projected to remain important for some years to come. Implementing standardized protocol architectures allow DMS ongoing communication with suppliers,

GSM: GSM (Global System for Mobile Communications: originally from Groupe Spécial Mobile) is the most popular standard for mobile telephone systems in the world. The GSM Association, its promoting industry trade organization of mobile phone carriers and manufacturers, estimates that 80% of the global mobile market uses the standard.

1998. Omnitel had to purchase a license for the GSM network for 760 million dollars.

complete systems became operational, the number of cellular phone users had grown to over two

In 1982 Conference of European Posts and Telegraphs (CEPT) formed a study group named Groupe Spécial Mobile this is the place were GSM begins . Seven year later it was ETSI (European Telecommunication Standards Institute) , who takes the responsibility to develop GSM in 1989 . Finally ETSI (European Telecommunication Standards Institute) published the phase – 1 specification of GSM in 1991 . It was a revolution in mobile communication , in just 2 years GSM claimed near about 37 distinct networks which spreads over 22 nation

Gphone is associated with world-class manufacturers such as Broadsoft, and carriers including ATT, Qwest, Verizon, and Global Crossing. The staff members who represent GlobalPhone want to provide today’s high-tech telecommunication industry with a creative approach to enabling technology, with outstanding customer support and services offered at competitive rates.

The very first cell phone was released to the public in 1977, and two thousand people were given free trials of the new technology. These cell phones did not have the capability to text or play apps. These devices were simply made for calling. (History of Cell Phones, 2011) The phones were approximately four times the size of the current iPhone, yet lacked almost all the features today’s cell phones boast. Cell phones were in high demand with only one company currently making the devices. By 1988, there were fifty-four different places in the United States where cell phones were able to be purchased. (History of Cell Phones, 2011)

▪ BlackBerry product first launched in 1999 ▪ Wide range of Wireless Service Providers (AT&T, Verizon, Sprint and all major global providers) ▪ 41 Million units sold in 2009 ▪ 80+ Million units currently in use globally

A mobile phone works on a unique networked system which needs no wiring, no fixation and no botheration. Originally it was used in cars, airlines, and passenger trains but increasingly it is becoming ubiquitous. It is basically low- power radio telephone. In this magical system calls go through radio transmitters that are located within small geographical unit which are known as cells. Since each cell's signals are too weak to interfere with those of other cells operating on the same frequencies and more channels can be used than would be possible with high power radio frequency transmission. Narrow-band frequency modulation (FM) is the most common mode of transmission, each message is assigned a carrier, unique to the cell from which it is transmitted.

Cellular telephone or Mobile telephone commonly referred as mobile phone or cellphone is a long-range, portable electronic device that is used in mobile communication. In 1990’s, few messages were sent through SMS (Short Messaging Service), but in year 2000 text messaging has been develop and gain popularity so the number of subscribers increase. In the late 60 's, cellphone were initially introduced in the Philippines and was made popular by Motorola Philippines. In the mid 70 's, GSM (Groupe Spécial Mobile) was introduced by Nokia Philippines, with advanced features such as text messaging, call waiting, call forwarding, and call hold. It started a new

CEL – TEL introducing to market its cellular phone and its accessories. Cellular Phones which will be available in the market would be a GSM one. This system started in Europe countries and United states is one of the country which is adapted this system. Hence GSM- Global system for mobile communications - it is a globally adapted the main or greatest advantage of the system is one can use this type of mobile anywhere in the world.

Competing standards (global system for mobile communications versus code division multiple access), fragmented systems, and lack of variety in calling plans are all cited as reasons for the lower per capita use of

First Generation(1G): First generation of mobile communication developed in 1980 's and completed in early 1990 's based on analog system.1G systems are based on AMPS(Advanced Mobile Phone Service ) technology.1G network only supports voice communication and no data service is provided by this.

The Global System for Mobile Communications (GSM) is the most popular standard for mobile phones in the world. GSM service is used by over 2 billion people across more than 212 countries and

Most of the top telecommunication companies use Ericsson’s GSM network including Vodafone Delhi. GSM R9 network, a multi service network has the ability to accommodate a variety of networks. For the operator, continuity of services, end client application portfolios and significant cost reductions in transmission, operation and support are the implications of GSM R9. GSM is an advanced TDMA framework upgraded for full duplex voice telephony.