RING

Ringtone
File type: Audio and sound file
Files with ring file extension might be found as older ring tones for IP phones.
What is ring file?
File type category:
Audio and sound file
Date updated: May 7, 2019
The ring file extension is generally used for ringtones used in several IP Phones, such as those produced by GrandStream Networks.
Usually some sort of simple WAV file.
Most likely some old format without support. No further information could be found.