Establish calls from iOS / Android for panic button

[fw_developer]

Hello everyone,

We're looking to develop a prototype of a very simple panic button. The device should automatically pair with iOS / Android, and establish a call to a given emergency number if the button is pressed. We don't need audio stream, just send the command for the phone to establish the call.

We have developed several projects with NRF52832 and NRF52840, so we would feel comfortable with both platforms.

Does anyone have experience establishing calls from an NRF device? Any similar examples?

Thanks in advance.

[Kenneth]

This is not something we have tried or have any experience with. There is an API to make phone calls on iOS, so it could be possible to pair the phone and nRF, and upon receiving a notification/indication (press of a button) it could trigger the call. However, there are many if's here, such as would iOS allow this without pairing and running the app, would the iOS wakeup and allow this even if the phone's screen is off etc. So even if it may seem possible, I think it would be difficult to know how stable it would be.