* AAC: Some phones like the Sony Ericsson W810i support ring tones in ".m4a" AAC format. The iPhone supports ring tones in ".m4r" AAC format.
* eMelody: Older Ericsson format.
* iMelody: Most new phones that don't do Nokia's Smart Messaging are using this format.
* KWS: Kyocera's ringer format.
* MID / MIDI: Popular sound format.
* Morse code: Text files with a .MORSE extension get converted into morse code songs.
* MOT: An older ringer format for Motorola phones.
* MP3: Some phones support ring tones that are mp3 format.
* Nokia / SCKL / OTT: Nokia Smart Messaging format. Nokia phones can receive ring tones as a text message. Ring tone tools can create these text messages. This allows anyone with a compatible phone to load their own ring tones in without a data cable. There are other phones besides Nokia that use this.
* PDB: Palm database. This is the format used to load ring tones on PDA phones such as the Kyocera 6035 and the Handspring Treo.
* PMD: Format co-created by Qualcomm and Japanese company Faith which can include MIDI, sampled audio, static graphics, animation, text, vibration and LED events
* QCP: File format generated by Qualcomm PureVoice software.
* RTTTL: A popular text format for ring tones.
* RTX: Similar to RTTTL with some advanced features. Also the octaves are different on RTX.
* Samsung1 & Samsung2: Samsung keypress format.
* Siemens Keypress: Can create and read in a Siemens text file format.
* Siemens SEO: Siemens SEO binary format.
* SMAF: Yamaha music format that combines MIDI with instrument sound data (aka Module files). Filenames have the extension "MMF".
