Customers who’ve bought goods and services by adding the charge to their mobile phone bill tend to make further mobile purchases, according to a new study by payment provider mopay.

The company analysed information from 300 of its clients, accounting for more than four million mobile transactions in over 80 countries during the past three years.

Mobile payments company mopay has forecast 'major momentum and movement' in the global mobile payments industry this year.

It’s identified a number of trends to watch for during the next 11 months, including massive growth of the mobile payment market in North America, increased consolidation and lower transaction costs.

Mobile payment company mopay is introducing a new service called mopay call. It'll give online shops the option of letting customers pay by making a conventional telephone call from a fixed-line phone.