Method and apparatus for cost-saving telephone service

摘要

The present invention provides a method for a cost-saving telephone service, comprising: receiving a request for telephoning a third party client device from a communication resources using device, wherein the communication resources using device and the third party client device are connected to a first and a second telephone service networks respectively; selecting a communication resources providing device from a plurality of client devices registered to the cost-saving telephone service and connected to the second telephone service network; and having the communication resources providing device telephone the third party client device through the second telephone service network such that the communication resources using device communicates with the third party client device via the communication resources providing device.