Here you will learn about gsm network technology introduction, cellular operators, cdma, voice mail, sim cards, dual band, quad band, communication channel, wireless communication and gprs overview. GSM was first introduced in the Finland in the year of 1991. GSM mobile phones operate on the TDMA systems. In the TDMA (time division multiple access system), multiple users can access single radio frequency without any interference. GSM is now the de facto standard for the mobile communication in the world.

The GSM (Global System for Mobile Communications) is a hugely successful wireless technology in the world. GSM has become the world’s largest growing communication technology and it has been expand in more than 214 countries of the world. The TDMA technology provides the individual time slot within a specific channel for each user.

GSM leads the world as the fastest growing mobile/wireless digital technology that is most reliable and is available in the marketplace today. GSM provides the integrated high-speed data, fax, voice mail, paging and short messages services features. GSM offers the secure communication, privacy and fraud prevention.

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

1900Mhz is used in the North America and 1800 MHz is for the other locations. Different mobile phone networks around the world operate at different frequencies. If you wish to use your mobile phones outside of your GSM frequency range then you should use a mobile/handset that support multiple frequencies. Before buying a mobile phone, make sure that it is compatible with the different bands of the GSM.

Dual-band – A dual band phone operates at different spectrum like 900 MHz and 1800 MHz. Dual-band GSM works in Europe, Asia, Africa, Australia and Sound America.
Tri-band – A tri band phone operates on the three different frequency levels like 900 MHz, 1800 MHz and 1900 MHz. This means that you can use your mobile phone in Europe, Asia, Australia, Africa and North America.

Quad-band – A quad band GSM capable phone allows you to roam almost everywhere in the world. It covers the different frequency ranges like 850 MHz, 900 MHz, 1800 MHz and 1900 MHz. 99% countries in the world use the GSM standard and it seems that GSM will eventually be the only cell phone standard in the mobile communication world. GSM provides the best voice quality and standard.

Today, there are more than 720 GSM mobile networks across the more than 214 countries. According to the recent statistics, there are more than 2 billion users of the GSM in the world. Major GSM using countries includes China, Russia, United States and India. A mobile phone can be a bewildering affair for a traveler. It is mostly incompatibility with the network of your visiting country, since every country in the world has different frequency band of operation. With a GSM enable mobile phone you can access more than 214 countries around the globe.

GSM is a state of the art technology offering voice, data, fax and SMS capabilities. Most of the mobile phone operators now offers email to SMS service by which you can receive the important news, flight status and other useful information on your mobile phone. Many operators give access to the ISDN services by which fast data transmission is possible. Many other offers GPRS (Global Packet Radio Service) with this service you can connect to the high speed data communication channel like 9600 bps. The two major GSM service providers in the US are the T-mobile and Cingular.

How Tos

In this section you will learn about computer network how to, troubleshooting tips, configurations, IT help, basic configurations help, wireless access point, hardware components and cables. Data commmunication is an important thing to share the data and resources and if you want to share the one internet connection with the other PCs, share your server's hard drive with the client computers, share printer, fax, scanner, DVD writer then this information will help you make the right choice. Before starting the installation and configurations you should be aware of all the hardware, software, cables, drivers and all the necessary other things.

Basic Introduction

• STEP 1: Router: A router relays the data between your computers and your internet connection.
• STEP 2: Network Adapter: A Network Adapter or NIC card is connected to each computer and it is used to send the data to each every computer and the router.
STEP 3: IP Address (Internet Protocol) is your computer’s unique identification on the computer network and over the internet. In your home network and a small network of a company all the computers share the same IP address over the internet.
• STEP 4: Print Server A print server is a specialized network adapter that is used to connect the printer machine to a network and with the print server several computers in a network share the same printer or print device.

How to Choose a Right Network Type

• STEP 1: Connecting your computer wirelessly over the radio waves is carried out by a specialized router called an access point. One access point is enough for networking an averaged sized home. The trade name of this technology is Wi-Fi or 802.11b. One important thing is that all the Wi-Fi products should be compatible with each other. Wireless communication is important for the people who go from room to room with their wireless laptops or they want to use their laptops in airports, hotels, cafes and other places where wireless service is available.

• STEP 2: Next you use your home’s wiring to connect the router to each computer with a powerline network. HomePlug is the trade name of this technology. It is seen that HomePlug networks are more secure than the Wi-Fi. But as compared to the Wi-Fi it is a new technology and is more expensive than Wi-Fi technology.

Buying Equipment Instructions

• STEP 1: First of all get one router and if you want to go wireless this router will called an access point.

• STEP 2: Next get compatible NIC cards for each computer and plug them into the computer’s universal serial bus (USB

• STEP 3: If you are using a wired network the purchased extra long CAT 5 Ethernet cables.

One important thing to note is that all the hardware should be compatible with each other.
Setup Instructions

• STEP 1: First of all read the manuals of the devices and start experimenting. Many products have good manuals and online support. You can easily get answers of the basic and advance questions. Many manufacturers provide online help and advice so there is no need to worry about any kind of technical support. Good technical support can save your lot of time and efforts. So before starting make a thorough plan to work on it.

• STEP 2: If you are planning to install a wired Ethernet, then run the cables to your home theaters or stereo. Now many new digital home products like digital video recorders and game systems are having the internet capability.

General Tips

In summary you should look for these things for installing a home network such as Router or access point, Ethernet cables, NIC adapter, Print Server and the technical support from the vendor or a useful website or forum on the internet. Hybrid networks have many advantages and so they are very popular. For example, you can have Ethernet going to a desktop computer and printer in your home office and additionally wireless router or access point for a roaming laptop and desktop computer in your bedroom.

Some cordless phones and the microwave ovens can interfere with a wireless communication. If you have any interference problems then move the access point and router and place them at some different positions.

It is very important that when you setup your router for the first time at your home, change its password because every hacker on the internet can know the default password of a router. Additionally, while making the wireless connectivity you must enalbe the WEP to keep the information private and secure from the hackers.

Additionally, install some anti spyware, good anti virus software on your server and client machines in your computer network and regulary update Windows operating sytem through the Microsoft's website.