GSM Technology Concepts

The basic knowledge on GSM technology, cellular operators, CDMA, voicemail, SIM cards, dual band, quad band communication channel, and GPRS wireless communication view. GSM was first introduced in Finland in the Year 1991. GSM phones that operate in TDMA systems. In TDMA (Time Division Multiple Access System), users can access to the internal radio frequencies without interference. GSM is now the de facto standard for mobile communications in the world.

GSM (Global System for Mobile Communications) is a highly successful wireless technology in the world. GSM has become the largest in the world of increasing technology, communication, and has been expanding to more than 214 countries worldwide. TDMA technology enables each interval within a specific channel for each user.

GSM is the world leader in the fastest growing mobile / wireless digital technology is more reliable and available on the market today. GSM provides integrated high-speed data, fax, voice mail, paging and short messaging service features. GSM offers secure communication, privacy and fraud prevention.

After subscription to the GSM service, you can use your phone in your home, office, across the continent or around the world, with country-specific SIM cards. GSM operates on different levels, frequency of 900 MHz, 1800 MHz or 1900 MHz

1900 MHz used in North America and 1800 MHz for other locations. Different mobile phone networks around the world operate on different frequencies. If you wish to use their phones outside their GSM frequencies, so you should use a mobile phone / phone supports multiple frequencies. Before you buy a cell phone that is compatible with the various GSM bands.

Dual-band - A dual-band phone operating on different frequencies as the 900 MHz and 1800 MHz GSM Dual-work in Europe, Asia, Africa, Australia and Latin sounds.

Tri-band - A tri-band phone operates at three different levels, such as frequency of 900 MHz, 1800 MHz and 1900 MHz, this means that you can use your cell phone in Europe, Asia, Australia, Africa and North America.

Quad-band - A quad-band GSM phone with roaming capability allows you to almost anywhere in the world. Cover different frequency band 850 MHz, 900 MHz, 1800 MHz and 1900 MHz, 99% of countries in the world use GSM standard, GSM, and finally seems to be the only cell phone standard in the world of mobile communications. GSM provides the best sound quality and standard.

Today there are more than 720 GSM mobile network through more than 214 countries. According to recent statistics, more than 2 billion users of GSM networks in the world. Main countries that use GSM comprises China, Russia, USA and India. A mobile phone can be a confusing for a traveler. It is mostly inconsistent with the networks of his country to visit, since each country in the world has a different frequency band of operation. With a GSM mobile phone can provide access to more than 214 countries worldwide.

GSM is a state of the art technology that provides voice, data, fax and SMS. Most mobile operators now offer email service to SMS where you can receive important news, flight status and other useful information on your mobile. Many operators provide access to ISDN services, as fast data transfer is possible. Many other offers for GPRS (Global Packet Radio Service), with this service you can connect to the communication channel data at high speeds, such as 9600 bps. The two largest providers of GSM services in the U.S. are T-Mobile and Singular.