Actually , you can make phone calls through your own router , and do not need t-mobiles router . You have to set up wifi on your curve . You do not have to pay $9.99 or whatever it costs if you only connect to your own router . The $9.99 is so that you can connect your phone to any t-mobile hotspot and make calls and use the internet on your phone . It will not work on a laptop .
Set up your wifi on your phone to connect to your router , and make sure you have security set up on your router .
Where i live , i do not get a t-mobile signal in my apt , but i can connect and make phone calls with my wireless router .
It must say UMA , not uma . Yes , the upper case does matter .
This is NOT the same as t-mobile@home , but will work with it .
The thing is , if you do not have the hotspot addon for the $9.99
The minutes you use will come off your t-mobile allotment , unless you are in your night time or weekend minutes .
And as stated other places , do NOT try to connect your phone through someone elses router , it is Illegal and will be prosecuted as Theft of Service or other charges depending on where you live .