The Sony Ericsson T637 plays the first second of the ringtone at a much lower volume. This inspired me to rework the Nokia persuasion ringtone for the Sony Ericsson T637. It plays the longer tune for the first second, and then starts the regular persuasion ringtone after 1sec. Works for me. I used MidiSwing to edit the original.
Download Now: Persuasion2.mid Also try Beep2.mid - variation on the single beep. Makes one beep at low volume, and a louder beep after 1sec.