T-mobile , a VOip service provider is planning to expand their service by providing a Wi-Fi network at home network and make calls using the internet rather than spending money by using the wired network. This service is getting popular among the people and is coming up as a major competitor for Vonage. A tool has been designed for this purpose which is named as Wireless G Broadband Router with 2 Phone Ports. This device supports two GSM sim cards and two separate phone lines.