A cordless telephone or portable telephone has a portable telephone handset that connects by radio to a base station connected to the public telephone network. The operational range is limited, usually to the same building or within some short distance from the base station.
Two cordless telephones
3 VTech cordless landline phones
Base station is – according to the International Telecommunication Union's (ITU) Radio Regulations (RR) – a "land station in the land mobile service."
A 1980s consumer-grade citizens' band radio (CB) base station
A cell tower near Thicketty, South Carolina.
A cell tower near Thicketty, South Carolina.
Two GSM mobile phone base station towers disguised as trees in Dublin, Ireland.