When you use a mobile data service, what you’re actually doing is connecting to the mobile provider’s network and requesting a data packet, whether that’s for an email, a video file or the latest social media update. The size of each of those files may vary considerably, but it’s not the case that what you’re charged in data terms is absolutely identical to the size of the files you’re downloading.
That’s because all mobile network providers use a system whereby there’s a minimum data packet size that’s counted, and it’s these increments that are included as whole or partial counts against your data usage.
AlphaCall counts each session in kilobytes. This means you get more usage out of your total data plan each month than if we counted in megabytes.