ToneDef is a small, but powerful tone dialer application featuring DTMF, bluebox, and redbox tone generation. Use the keypad, enter a predefined sequence, or select an entry from your contact list.
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.
(NOTE: The READ_CONTACTS permission is only used for 'dial from contact' feature. INTERNET and ACCESS_NETWORK_STATE are used for a small ad on the front page. Don't hate me.)