Configuration/settings/enable auto schedule
$c->enable_auto_schedule = true;
default: true (from 0.9.9.7)
If you want to turn off scheduling functions you can set this to 'false' and DAViCal will not advertise the ability to schedule, and will not automatically schedule meetings among attendees on the same server (as identified by configured e-mail addresses).
In an office environment you should normally leave this unset (defaulting to on). If DAViCal is being used in an environment where people do not schedule meetings then you should set it to false.
Available from DAViCal version: 0.9.9 and later