The file format must be:
- Constant bitrate 128 kbps
- Sampling rate 8000 Khz
- Channels 1 (mono)
Test performed with the following website: - Online Audio Converter - Сonvert audio files to MP3, WAV, MP4, M4A, OGG or iPhone Ringtones (online-audio-converter.com)
Save the file on your computer
Select via Safire Control Center
Then select the settings button on the monitor.
At the top you will see the ringtone options to open and select your new loaded ringtone.