If you are not sure whether your service includes internet access - sometimes referred to as data charges - please ask your network provider.
But it can also become expensive when incremental data charges are taken into account.
The data charges were themselves designed to replace income lost when a statutory levy was abolished.
Tenants typically get one monthly bill for both the voice and data charges.
They now have a free (opt-in) thing which limits the data charges to £1.50 per day.
This happened as Verizon changed its plans from minutes to include data charges.
Also be aware data charges can also get quite expensive, but often free or cheap wifi is around.
However, if you're planning a lot of rural travel combined with internet use, watch out for Three's roaming data charges.
Please check with your service provider for more details about data charges on your contract.
Alongside caps, high data charges are being used as a deterrent, particularly for the casual internet browser.