Making calls over wi-fi but using my sim phone #

[aquadoll]

Is there an app which would use wi-fi to make outbound (and possibly inbound too, but not necessary) calls from my android phone?

I am already aware of Groove IP and the SIP options and their integration with Google Voice, but that is *not* what I am asking. I want to make wi-fi calls when I am near wi-fi but still use my t-mo phone number (just to save the mins). I am OK with receiving calls on the t-mo network.

I have seen something like this in a Samsung t409 feature phone I used to have. It used to call using wi-fi when I am wi-fi connected, and not use the cell minutes.

 

[Carolina Media]

Most of the current T-Mobile phones already have the Free WiFi calling feature included. I don't think there is anyway to get it if its not.preinstalled on your device.

 

[aquadoll]

Thanks for replying. Would you please be kind enough to point to me which setting you are talking about? I am using Gingerbread 2.3.7 (CM7).

Most of the current T-Mobile phones already have the Free WiFi calling feature included. I don't think there is anyway to get it if its not.preinstalled on your device.

 

[zuben el genub]

Looks like TMO might have added wifi calling to a new SIM recently. I would like to find out more about this to see if it works in any TMO phone.

My Samsung Galaxy S had built in wifi calling. It was actually more like an app. You could put it on the screen like other apps. Phone was rooted, but never installed a custom ROM, so Wifi kept working.