1G: 2.4 kpps voice communication only. Is also an analogue system, stripping?2G: 64 kbps voice clearer communication, greater coverage and is the first of the standard digital system GSM and CDMA in the.3G: 2000 kbps for both voice and data communications, whether it is text, multimedia, and the Internet is regarded as the first era of mobile broadband.4G: 100,000 kbps communication with information, or whether it is connected has Internet voice communication. Use of standard protocols and LTE communication is truly mobile broadband.
การแปล กรุณารอสักครู่..
