Overriding the silent mode switch to bypassing the silent or mute mode of a smartphone makes absolute sense in case of critical alarms. SIGNL4 offers multiple options in this regard.
Push notifications on iPhones
SIGNL4 supports Apple's "critical alert" allowing to bypass the hardware mute switch. Here are the details: https://www.signl4.com/blog/october-2020-update-iphone-critical-alerts/
It is possible to set up an emergency bypass that allows calls from certain users. This allows to use the SIGNL4 voice call feature as a workaround. However, if the hardware mute is on, the phone will only vibrate. We think that Apple should definitely make improvements here. Here is a description of how to set up the emergency bypass: https://lifehacker.com/ios-10s-emergency-bypass-feature-forces-calls-and-texts-1786722365
Push notifications on Android
Android does not have this hardware mute switch but a "Do not disturb" mode. We have described how to allow exceptions for Push notifications and Calls here. Please note that this can differ for each Android version: https://www.signl4.com/blog/true-smart-mobile-pager-app/
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