Truphone has unveiled its plans for a single-SIM, multi-country mobile service that will enable users to make calls in supported countries at local rates.
The mobile communications company says a key aim of the Local Anywhere service is to eliminate the hassle of switching SIM cards or the expense of often-exorbitant roaming charges when callers use their handsets on foreign trips.

DeFi Mobile has launched a new service that aims to reduce international mobile roaming charges by substituting wifi VoIP for cellular calls whenever possible.
DeFi Global Access lets customers use their dual-mode cellular/wifi handsets to make calls through international wifi hotspots.