This was in the forums in 2008 and recently resurfaced. The ability to place an international call thru 3cx, but while on our mobile phone, and not use the Data Plan. So, within the softphone, dial a number and say "Call me back on my mobile to make this call". 3cx receives the instruction. Cell Phone rings, Outgoing call is placed via 3cx to the international location. Data plan is only used to send the instruction to 3cx.