To start ISL Connection Tester, please open the following link: https://www.islonline.net/start/ConnectionTester
Note: As of ISL Tester 4.1.0, ISL Tester will now offer a signed DMG package rather than an unsigned ZIP file to Mac users.
Server licence users: If you wish to use ISL Connection Tester from a specific ISL Conference Proxy server, use the following link: http://serveraddress:7615/start/ConnectionTester (replace serveraddress with the appropriate server IP/DNS name)