When T-Mobile introduced its HotSpot @Home service last year, we praised it for finally freeing us from the tyranny of the landline. The service lets you make and receive calls via Wi-Fi (as long as you have a compatible cell phone) in addition to the regular cell phone network. Therefore, you could just make calls for "free" (there's a monthly fee) as long as you're within range of a Wi-Fi signal.
But T-Mobile received complaints that people still were not ready to give up their landlines. The idea of one central home telephone is still a strong one, and using a cell phone when chatting at home is not something a lot of people wanted to adopt. With that, T-Mobile developed a VoIP solution aptly called T-Mobile @Home. All you need is a special router from T-Mobile, a broadband connection, and a regular touch-tone phone. Put it all together, and you're done. Of course, you can also use this router for the HotSpot @Home service mentioned earlier. The router is priced at $149.99, but you can get it for $49.99 with a two-year service agreement. The @Home service will cost you $10 a month on top of your existing wireless plan.
The router we tested was a Linksys router specially configured for T-Mobile. It has four Ethernet jacks and two RJ-11 phone jacks on the back, plus an array of green and blue LEDs on the front. Setting it up is the same as setting up any other wireless router, save for one difference: You need to install a SIM card. Open up a compartment in the back, and you'll find two SIM card slots--this means the router can support up to two separate phone lines. The SIM card slot marked Line 1 corresponds to the Phone 1 jack, and the Line 2 slot corresponds to the Phone 2 jack. So if you insert a SIM card in Line 1, you should connect your home phone to the Phone 1 jack.