Users could create their own monophonic ringtones directly on the device. Vibration Alert: Combined with any ringtone.
can sometimes play very basic WAV tones, though this is difficult to configure properly. If you are trying to revive your own SL55, let me know: Are you trying to get the back? Siemens Sl55 Ringtones
Ensure files are in MIDI format, as the phone does not support modern MP3 ringtones. Keep it Small: Users could create their own monophonic ringtones directly
The phone primarily supports MIDI (.mid) files for ringtones. Siemens Sl55 Ringtones
While the phone has 1.6MB of total storage for all media (images, games, sounds), ringtones needed to be small to fit. Iconic Default SL55 Tones
Although defunct, the original method involved WAP download links. Tips for Custom Tones