2. EDGE: Enhanced Data Rates for GSM Evolution or EGPRS connection is a technology that has the highest rate of data transfer over GPRS. If the EDGE network is available in some places, there is no GPRS service is used as a substitute for EDGE.
3. Wi-Fi: Wireless Fidelity is a technology which uses wireless communication to transmit data, previously used Wi-Fi only with laptops and handhelds, but now a days it is also used in modern mobile phones that have Wi-Fi services. The advantage of using Wi-Fi is the transmission rate, and it can support up to 100 Mbps.
4. Bluetooth: Bluetooth is a technology used to transmit data between devices within a small range of 100 meters. The network formed from Bluetooth devices known as piconet. Bluetooth technology can be used to create connections between multiple devices resulting in machine to machine communication. At one point, seven devices can communicate via Bluetooth.
5. GSM: Global System for Mobile Communications technology is a technology of digital cellular network used in the second generation, but later 3G was achieved by increasing the speed circuit-switched network. GSM operates on different frequencies for 2G and 3G.
• 2G Network GSM operating in 850 MHz or 1900 MHz.
• 3G GSM network operating frequency of 2100MHz
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