iPhone/iPad Settings >> Volume: Make sure the ringer is not set on silent mode.
iPhone/iPad Settings >> iPlum app: Enable the Permissions for Microphone, Camera, Contacts & Notifications (All).
iPlum Settings : Check that “Do Not Disturb” options for calls or messages are not mistakenly enabled by you.
Android Settings >> Sounds & notifications >> Sound >> Make sure the Ringtones & Notifications is not in silent mode.
Android Settings >> Sounds & notifications >> Scroll to Notifications >> Application notifications >> iPlum >> Allow notifications.
Android Settings >> Application manager >> iPlum >> Permissions >> Enable Microphone, Contacts, Camera, Location.
Make sure the iPlum app is running & not “Force Stop”. Force Stopped condition will not receive any ringtones or notifications to the iPlum app.
(Android version 5.x and below) Android Settings >> Data usage >> More >> Restrict background data (Enable).
(Android version 6.0 and above)”Doze mode”: White-list iPlum app. Click Device Settings >> Battery >> Top right choose “Battery Optimization”. Toggle from “Not Optimized” to “All Apps”. Scroll to iPlum and then choose “Don’t Optimize” and click “Done”.
iPlum App Settings: Check “Do Not Disturb” options for calls or messages are not mistakenly enabled by you.