O2 offer outstanding UK coverage (over 99% of the UK is covered), free International Traveller Service offering discounts of up to 80% when roaming and are the only UK network to offer three months rolled over minutes.

• Free itemised billing.
• Free voicemail (when within the UK)
• Free International Traveller Service.
• Three months rollover of unused minutes.
• Discount of 20% on up to FIVE nominated land or mobile numbers.
• Online bill analyser.
• UK based customer services with over 1000 advisors.
• Free ITS (International Traveller Service) on 250 plans and above giving up to 80% discount on International
• £10 bolt on free calls to everybody on O2 and specific landlines up to 6
• 3 Months Rollover
• Only network to include text on minute packages
• Free unlimited evening and weekend calls
• UK-based dedicated Business Customer Services 24/7
• Global footprint of almost 400 networks in over 175 countries
• Group Conferencing for up to 20