Now T-Mobile’s WiFi-calling is also possible on the Nexus One! WiFi-calling is surely a nice feature, so Rsotbiemrptson, a member over at XDA-developers, has recently extracted the function into this Google phone.

Here’s his short guide to install the hack yourself, and if you’re interested, you might want to check out further information in the forum thread. Take note that this only works on T-Mobile’s Nexus One. Happy hacking!

Instructions:

1.Download CyanogenMod 6.1.0 rom and copy to SD-Card (Not included)
2.Download the app from the first post or this one and copy to SD-Card
3.Download WiFi_Calling.zip and extract the contents to you SD-Card
4.Flash CyanogenMod 6.1.0 (Gapps is optional, It is included in my mod)
5.Go through the initial setup and sign in, then reboot to recovery
6.Flash WiFi Calling Kernel.zip, reboot then reboot to recovery (It’s IntersectRaven’s kernel but can’t remember which date, fairly new though, that I have added kineto_gan.ko to)
7.Flash WiFi Calling Libs.zip, reboot (Includes libs from Evil’s Mytouch4G v.0.6 Rom, and a modded build.prop from a stock 2.2.1 rom)
8.Install MS-HTCVISION-KNT20-02.apk
9.Connect to WiFi
10.Open App and enable
11.Enjoy

Rsotbiemrptson

If you’re a T-Mobile Nexus One owner and have tried out this hack, feel free to tell us your experience!

Source