I am running community edition 6.5.21. In accounts when I create a new call/meeting and check the "Popup" boxes 1 min prior neither do anything. I have added php -f cron.php to cron.
I have found the issue. Now it is work.
Problem with user date format. If user select dd/mm/yyyy format at that time did not work.
Also, if you're using message rules and a new message is moved out of the default account Inbox, you might not receive a Desktop Alert notification, or the Desktop Alert notification might not appear for the full duration of time that you configured in the settings for the Desktop Alerts feature.
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