«Unable to validate your license key» and «Unable to validate trial period» messages

You see «Unable to validate your license key» or «Unable to validate trial period» message if Softphone.Pro is unable to access the licensing server https://license.softphone.pro

Softphone.Pro validates license key every time on start and periodically when the program is running.

1. Check that you have an Internet access on your computer.

2. Update your firewall or anti-virus software to grant access for this URL https://license.softphone.pro