It worked for me in caribbeans and Mexico. I have unlimited calls and texting so it's free for me.

Like the poster mentioned above, only MMS doesn't work.

To clarify, wifi calling actually does NOT count against your minutes if you have the *current* wifi calling feature on your account. The feature that was out when wifi calling first showed up on android did use your minutes. Call T-Mobile customer care and have them update the feature if it is using your minutes - might take a couple attempts to get a rep that knows what they are doing, but it is possible. And free

I have been able to add it to customers' grandfathered plans (at a retail store) btw. Just kind of a pain to get processed correctly.

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Originally Posted by zhab

To clarify, wifi calling actually does NOT count against your minutes if you have the *current* wifi calling feature on your account. The feature that was out when wifi calling first showed up on android did use your minutes. Call T-Mobile customer care and have them update the feature if it is using your minutes - might take a couple attempts to get a rep that knows what they are doing, but it is possible. And free

I have been able to add it to customers' grandfathered plans (at a retail store) btw. Just kind of a pain to get processed correctly.

Sent from my SGH-T959 using XDA App

Exactly

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Originally Posted by bbm21

Oh.. well it worked

Anyway been waiting for this for a while thanks allot!

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Hey so is this conformed working on JPJ? I am trying to use this on Simply Galaxy 2.2.1?

Originally Posted by rakeshchn

Hey so is this conformed working on JPJ? I am trying to use this on Simply Galaxy 2.2.1?

No sorry I thought gingerclone was jpj buts its actually zsjpk

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Originally Posted by zhab

To clarify, wifi calling actually does NOT count against your minutes if you have the *current* wifi calling feature on your account. The feature that was out when wifi calling first showed up on android did use your minutes. Call T-Mobile customer care and have them update the feature if it is using your minutes - might take a couple attempts to get a rep that knows what they are doing, but it is possible. And free

I have been able to add it to customers' grandfathered plans (at a retail store) btw. Just kind of a pain to get processed correctly.

Sent from my SGH-T959 using XDA App

Just to clear things up a little, I took the liberty of looking this up again to provide a link for everyone. Anyone using wifi calling should read this: FIXED LINK

http://www.tmonews.com/2011/05/t-mob...-calling-back/

Wifi calling is now working great for me on Bi-Winning v3. Thanks Segnaro! This is one of the major reasons I hadn't moved to a 2.2.1 rom yet (even though I desperately wanted to get rid of the softkey backlights when just reading on my phone), so I'm very glad I could make that update.

THANKS!!! Now i can upgrade to 2.2.1 or GB!!! Wifi calling is the only way to go when you work overseas or offshore!

EDIT: Oops. Meant to post on the 2.3.4 thread and hit the 2.2.1 thread. Grr...

Hey y'all, well wifi calling is working on my new bi-winning 3.0... To a point. sms is perfect and it makes calls i just can't hear anything... Did i do something wrong?