Zoiper-free-3.15-setup.exe ((top))

: Ensure Windows Defender or third-party antivirus suites are not blocking port 5060 (UDP/TCP) for Zoiper.

Upon opening the application, you will be prompted to enter your credentials: zoiper-free-3.15-setup.exe

This specific file represents an older release of the software (major version 3.15). While functional, it lacks several security updates, protocol improvements, and UI enhancements found in modern Zoiper 5.x builds. : Ensure Windows Defender or third-party antivirus suites