We are developing an medical emergency app in which when someone in emergency click on emergency button it should send an push notification to their emergency contacts, on the receiver mobile the push notification should appear along with continuous alarm sound until the user manually stop the alarm by clicking stop alarm button on our app. And also this alarm sound we should get even when the mobile phone is kept on silent mode. We have developed this application using flutter. This required functionality is working as expected in android app but on the ios app the push notification and sound going off after few seconds immediately and on silent mode it’s not ringing alarm. As it is an important and must required feature of our application please help us to resolve this issue.