There are other tone generators on the market, but when I really needed one...well... I was left with the urge to write my own. Hopefully this one works out for you, too. ;)
Feel free to suggest anything that might make this a better application, and let me know if anything is broken.
(PERMISSIONS NOTE: The READ_CONTACTS permission is only used for 'dial from contact' feature. INTERNET and ACCESS_NETWORK_STATE are only used for advertisements.)
此版本中的新功能：* Rewrote a good chunk of the backend (again). As a result, dialing strings are now available in the BlueBox!