To resolve another issue, I upgraded my FreePBX distro to use Asterisk 13.2 from 11 (as suggested in a previous post). It seems to have broken something with the the Parking and Conference PhoneApps when used with Aastra 57i and 6867 phones. After a reboot, everything is fine, but whenever I Apply any config changes via the FreePBX pages, the parking lot and conference lights come on and stay on. The parking lot and conference rooms are empty. Restarting Asterisk doesn’t seem to fix it nor does restarting the REST applications daemon. Doing a complete system reboot seems to solve it until I apply configuration changes again.
REST Phone Applications 12.0.29