Mobile phone features (2.0), dual line support, infrared, Bluetooth (2.0) and WiFi connectivity, NFC, instant messaging, Internet e-mail and browsing and serving as a wireless modem. The first smartphone was the Nokia 9000 Communicator in 1996 which added PDA functionality to the basic mobile phone at the time. As miniaturization and increased processing power of microchips has enabled ever more features to be added to phones, the concept of the smartphone has evolved, and what was a high-end smartphone five years ago, is a standard phone today. Several phone series have been introduced to address a given market segment, such as the RIM
Postpaid mobile phone a country dominated by postpaid providers including Verizon, AT&T, Sprint, and T-Mobile, although a smaller market has been captured by prepaid providers such as Boost Mobile, Virgin Mobile, MetroPCS, Cricket Wireless, TracFone, and Ting Inc. many of which use postpaid providers networks (e.g. MetroPCS is carried on the T-Mobile network). The alternative billing method is a prepaid mobile phone where a user pays in advance for credit which is then consumed by use of the mobile phone service. Postpaid mobile phone The postpaid mobile phone is a mobile phone for which service is provided by a prior arrangement with a