Search Results for: Cellular networks
over a radio frequency link while the user is moving within a telephone service area. the radio frequency link establishes a connection to the switching systems of a mobile phone operator , which provides access to the public switched telephone network (pstn). modern mobile telephone services use a cellular
network architecture, and, therefore, mobile telephones are called cellular telephones or cell phones, in north america. in addition to telephony , s-era mobile phones support a variety of other services , such as text messaging , mms , email , internet access , short-range wireless communications (...
https://en.wikipedia.org/wiki/Cell_phone