Alternatively, use wget in the terminal:
While there are native Linux SIP clients like Linphone or Jami , many users prefer MicroSIP because it is incredibly "clean"—it consumes almost no RAM, stays out of the way in the system tray, and is famous for its high-quality voice codecs. How To Install Microsip On Linux
Compile and install Microsip:
Go to the official website: https://www.microsip.org/download Download the (ZIP file) — not the installer. Alternatively, use wget in the terminal: While there