SoftSIM是一个聪明的，基于VoIP的虚拟电话号码的应用
SoftSIM is a smart, VoIP based Virtual phone number application. It allows users to use advanced SIP/VoIP technology to make and receive calls through the internet or to trigger our web-based technology to make 'normal' calls between various network operators.
The benefits include being able to receive calls from anywhere in the world over the internet and also saving on your airtime bills!
Go on, give it a try!