在www.mutualphone.com看到一个IP电话软件， 说是“In Messengers of MSN and Yahoo, you can make free PC2PC call. but you have to pay when you make a PC2Phone call, and they don't have Phone2PC and Phone2Phone call function. with mutualphone, YOU CAN MAKE FREE PC2PC, PC2Phone, Phone2PC call.

Mutualphone can also transfer all the incoming PC2PC call to a predefined telephone when you leave the computer. So no matter where you go, your worldwide buddy can reach you free by your computer. Mutualphone give you ultimate freedom in voice call by internet."
如果真是这样， 我们多伦多的朋友装上几十个这样的软件， 似乎我们国内的朋友就可以通过这个网络免费拨打多伦多的电话。（通过PC2Phone的方式）。