iOS 11 satisfied one of our feature requests: a function which mutes and automatically replies to incoming messages while you’re driving. Some 781 million miles of driving data seems to support the contention that it helps to reduce distracted driving.

A new Apple patent application describes what may be the next step in the development of this feature …

The patent application, published today, describes how a similar approach could be used to mute incoming calls. It is written in the usual dense language of these things.

But the core idea is that Siri could answer the call and let the caller know that you are driving.

Although many cars support hands-free calls, there is a lot of evidence to suggest that the distraction of holding a phone conversation while driving still represents a significant risk. Some studies suggest it is as dangerous as drunk driving. It’s quite different from talking with a passenger in the car, who can see when you shouldn’t be distracted.

As with all Apple patents, there’s no telling whether they will ever make it into a product, but this one does seem to be a likely next step.

If you want to customize the existing automatic text settings, check out our guide on how to do so.

Via Patently Apple