The first British mobile phone call is made by Michael Harrison to his father Sir Ernest Harrison, chairman of Vodafone.

A mobile phone or cell phone is a portable telephone that allows users to make and receive calls over a radio frequency link while moving within a designated telephone service area, unlike fixed-location phones. This radio frequency link connects to the switching systems of a mobile phone operator, providing access to the public switched telephone network (PSTN). Modern mobile telephony relies on a cellular network architecture, which is why mobile phones are often referred to as 'cell phones' in North America.

Sir Ernest Thomas Harrison was an English businessman. He was best known as chairman of electronics company Racal and the first chairman of its spun-out mobile telephony division, Vodafone. He was also a fan and major shareholder of Arsenal Football Club. In 1997 he was elected an Honorary Fellow of the Royal Academy of Engineering.

Vodafone Group Public Limited Company is a British multinational telecommunications company. Its registered office and global headquarters are in Newbury, Berkshire, England. It predominantly operates services in Asia, Africa, Europe, and Oceania.

January 1 is the first day of the calendar year in the Gregorian Calendar; 364 days remain until the end of the year. This day is also known as New Year's Day since the day marks the beginning of the year.