Set unregister on reboot to yes
Disabled DHCP Overrides 42 and 2, these options cause problems with the GRP2615 & DP752 time zone. Disabling these options should be good more often then not.
Added DND and Forward features in a way that will play nice with FusionPBX, as well as work well with the Grandstream Phone. The value of having them as IF statements, is the Features button becomes crowded with all accounts even if only 1 account is enabled.
May consider adding these to other GRP models.
AutomationSingularity