How to make high fidelity ringtones for the T509
From HowardForums Wiki
Assuming you can send files via bluetooth to your phone, and can run the unix tool "ffmpeg", try this:
ffmpeg -i yourtone.mp3 -ac 1 -ab 36 -acodec aac yourtone.3gp
That creates a one-channel (mono), 36kbit/sec AAC 3GP file, which the T509 will allow you to set as a ringtone.
For a list of free ringtones try www.phreakyphonez.net
A good tutorial for compiling ffmpeg is available at here.
