Thank you for the help.
answered Sep 18 '12 at 21:37
While "texting" your cell phone uses the same frequencies that it uses while making or receiving a call. It uses the same 3G or, what is more likely for modern smartphones the 4G standard. If it is a 3G - the frequencies are GSM 850/1900 MHz for United States, Canada and some countries of Latin America, or it may be GSM 900/1800 MHz for Europe and Asia.
The 3G and 4G are totally different. To be branded as a 3G a communication system has to provide at least 200kbit/s data transmission speed. To branded as a 4G the same system has to provide data transfer speed up to 100 mbit/s for mobile users and up to 1 gbit/s for stationary users.
Thanks for your question! I hope I have helped. Good luck in your research!
answered Sep 18 '12 at 05:48