Perfect if your idea of "hot" is nostalgic 8-bit video game themes. MicroSIP Audio Requirements
Navigate to your downloaded "hot" ringtone and hit Open . Save: Click Save at the bottom of the settings menu. Why Use Custom Ringtones?
Click the downward arrow in the top right corner and select Settings .
MicroSIP is a popular open-source VoIP softphone for Windows known for being lightweight and highly customizable. If you are looking to spice up your incoming calls, changing your ringtone is one of the easiest ways to personalize your experience. Top Sources for Hot Ringtones
Look for the "Ringtone" field near the bottom of the window.