Allows you to react to a call being screened. In other words, this event will trigger when Tasker is set as your Caller ID & spam app in Android settings and you get a call.
Import an example project that will accept calls if a caller is on your contact list and will reject them otherwise here.
This event will trigger before the phone starts to ring.
After this triggers you have a few seconds to use the Call Screening action in your task to decide what you want to do with the call (reject, accept, etc).
If specified, Caller must match the incoming call (see Pattern Matching in the Userguide).
Possible values for call capabilities and properties are available here. Capabilites start with CAPABILITY_ and properties start with PROPERTY_