Before revision: History 1G and 2G While some analogue mobile phones provided a standard RJ11 telephone socket into which a normal landline modem could be plugged, this only provided slow dial-up connections, usually 2.4 kilobit per second (kbit/s) or less.
After revision: History While soanalogue mobile phones provided a standard RJ11 , RJ14, RJ2connections, usually 2.4 kilobit per second (kbit/s) or less.