For a little $1 iPhone app, Line2 sure has the potential to shake up an entire industry. It can save you money. It can make calls where AT&T’s signal is weak, like indoors. It can turn an iPod Touch ...

Line2 represents a solid VoIP solution, but the lack of collaboration options may make it unsuitable for many firms. Why you can trust TechRadar We spend hours testing every product or service we ...