Once the user has dialed an international number, the services recognizes it and places the call on the Truphone VoIP network, rather than using a cellular network. That means the caller is simply paying to call a local landline, plus a small fee to Truphone for the call.
In a statement, Truphone chief executive Geraldine Wilson said:
"The launch of Truphone Business follows demand for a business solution from our existing customer base. Companies are keen to cut costs but find that an increasingly mobile and global workforce need to make international calls from mobile devices as a part of day-to-day business."
The service is available through the BlackBerry Enterprise server or via resellers, with different tariffs. The company offers cheap global calling for other smartphones.