How does it work?
To report SMS messages and calls, the user must enable an Unwanted Communication extension in the Settings app. They can only enable one Unwanted Communication extension at a time.
In order to report calls, the user swipes left on an item in the Recents list and selects Report. For SMS messages, they press the Report Messages button when it appears in the Messages transcript. Users can also select messages by long-pressing a message and selecting additional messages, then selecting Report Messages.
When the user reports an SMS message or call, the system launches your Unwanted Communication extension. Your extension gathers additional information from the user, before deciding whether to report or block the number, as shown in Figure 1.