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O2

O2 is the UK’s second biggest mobile phone network provider. (The brand name is "O2" - not "02"). O2 offers ‘joined up’ business communications, with business mobiles, email, mobile broadband, and business landline services, on a single bill
O2 has more UK Smartphone users than any other mobile network
Outside the mobile phone industry O2 also sponsors the School for Startups - offering free business training to businesses, social enterprises and individual entrepreneurs
Through its Think Big initiative, O2 aims to address important social and environmental issues such as climate change, as well as helping support and protect children and young people
O2 was the first provider to secure the Carbon Trust Standard certification for reducing carbon emissions
O2 is a subsidiary of Telefónica, a European mobile, broadband and telecoms provider - the third largest provider in the world
O2 is an active sponsor of sport and entertainment and is perhaps best known for The O2 (formerly the Millennium Dome) in London

Business customers receive unlimited calls to all business and personal O2 mobile phones
Customers on certain O2 Pay Monthly tariffs can also choose any 10 UK landline numbers to call free of charge
O2 business customers automatically receive unlimited access to The Cloud - the UK’s largest network of Wi-Fi hotspots, with no impact on monthly data allowance
O2’s network covers 99% of the UK population, with 84% 3G (3rd Generation mobile phone network) coverage for customers that are active online
O2 customer support for all O2 business services is provided by a team based here in the UK. Support is available free of charge, 8am to 9pm, 7 days a week
Out of hours technical support is available to O2 business customers by telephone and a visit to your UK office can be booked if you need it
O2 business tariff customers qualify for registration to Blueroom for Business. Customers benefit from offers and discounts from partners
O2 business customers can entertain their clients and treat their staff, with special offers and priority tickets for a large number of major O2 venues and events