Truphone is a global mobile network that operates its service internationally. It has headquarters in London, and offices in Australia, Germany, Hong Kong, Philippines, Poland, Spain, the Netherlands, Portugal, and the United States.Truphone offers three main products:

Truphone, a SIM-based GSM mobile service that offers customers improved voice and data performance, as well as local rates (rather than roaming rates) in 66 countries, in partnership with Air Voice Telecom Group Ltd. In eight (8) of these countries, an area the company calls the Truphone Zone users can purchase additional local mobile phone numbers, so their contacts in these countries are able to reach them with a local call.
Truphone Mobile Recording, which enables businesses to seamlessly record and securely store mobile communications.
The Truphone App, terminated on 20 December 2016, which allowed free VoIP capabilities, in addition to other features, for iOS, Android and BlackBerry devices.