Once MicroSIP opens, go to Menu > Settings > Audio Devices .
The search for is a search for speed, simplicity, and reliability. While you cannot run the Windows .exe natively on your Mac without performance penalties, the spirit of MicroSIP lives on in fantastic native applications. microsip macos
MicroSIP is an open-source SIP softphone based on the PJSIP stack. On Windows, it is legendary for being a tiny, portable executable. The macOS version (typically distributed as a .dmg or via brew ) carries the same philosophy: it is lightweight, fast, and ruthlessly efficient. Once MicroSIP opens, go to Menu > Settings