Downloading it now. I'll give it a shot and see what I can find... I'm looking for a way to restart the app if it closes on it own without a f/c.
Okay short update... I've been using wi-fi calling app all day on OnceICS without it dropping my call. I have had to reconnect only once in an 8 hour period, however it doesn't seem to want to do the initial connection without disabling and re-enabling the app. I'm about off of work now and will try someone with the app when I get home, I'm installing R/CMix v2.1 to try to it when I get home then I will move onto the others.