what billmonitor assumes

bill analysis assumptions

  • It calculates non-geographical and premium numbers (e.g. 0845, 0870 and 0871) at one cost whereas different networks charge them differently.
  • It calculates calls by the second but some networks bill international calls by the minute so the cost of those calls may be rounded up.

calculator assumptions

  • It assumes you make the same amount of peak and off-peak calls.
  • It assumes 32% of your calls are to landlines, the rest to other mobiles.
  • It assumes mobile calls are made to each network in proportion to their relative customer base.
  • It assumes calls made have a varying length, with an average length that increases as the amount of minutes used per month increases. For example, the average call length is about 2.5 minutes for 500 minutes per month.
  • It assumes, when you roam, half of calls are made to the country you’re in, the other half back to the UK.
  • When you pick a region for international or roaming, it picks 5 popular countries in that region, and spreads the usage evenly among them. It takes care to pick countries that represent the costs of the region fairly so you won’t get surprised.
  • For roaming usage, it multiplies (the number of trips specified) times (the minutes and texts per trip) to determine an annual usage level, with usage spread evenly through the year.
  • Roaming services might not be available in all countries for all operators.
  • It calculates calls by the second but some networks bill international calls by the minute so the cost of those calls may be rounded up.

Save £ be :) with billmonitor

Founded by mathematicians in oxford, billmonitor is an independent and impartial service that helps mobile phone users save money with its unique bill analysis and mobile price comparison calculator approved by Ofcom since 2009

Featured on the MoneySavingExpert, The Gadget Show, BBC2 and The Independent as well as highlighted by Consumer Focus, billmonitor has been heralded as a much-needed service for mobile phone consumers