O2 (UK) O2 (UK) Telefónica UK Limited (trading as O2 – stylised as O) is a telecommunications services provider in the United Kingdom, owned by the Spanish multinational Telefónica, and is headquartered in Slough. With 25 million subscribers (as of December 2017), O2 is the second-largest mobile network operator in the United Kingdom after EE, with Vodafone in third place. O2 was formed in 1985 as Cellnet, a 60:40 joint venture between BT Group and Securicor. In 1999, BT Group acquired Securicor's share of Cellnet and the company was later rebranded as BT Cellnet. In June 2000, BT Cellnet launched the world's
Raindance Communications Raindance Communications Raindance Communications, Inc. was a US company that provides online meeting, web conferencing and teleconferencing services. Its products include "Raindance Seminar Edition", "Raindance Meeting Edition", "Raindance Web Conferencing Pro", "Raindance Reservationless Conferencing", and others. The company is typically referred to as simply "Raindance." Raindance was founded in April 1997. Originally called Vstream, the company specialized in the emerging field of internet streaming media. In 1999 the firm diversified into the web conferencing space by hosting and webcasting audio conferences using its existing streaming technology. In 2000, Vstream changed its name to Evoke Communications and offered its IPO. In