How do I fix notification problems on my Samsung? Follow

This can vary slightly between Samsung devices but in general, here are complete instructions:

Go to Settings / Sounds and Vibration / Volume

• Make sure Notifications volume is at least half way

Go to Settings / Device Maintenance / battery

• set Power saving mode
  • Off
     or
  • MID
    • customize
    • Background Network Usage: On/Allowed
• under App Power Monitor
  • edit Unmonitored Apps
    • +Add apps
    • Make sure Telmediq is ticked and tap DONE
• open up Battery Usage
  • tap the ☰ menu in top right and choose ‘Optimize battery usage’
  • change ‘Apps not optimized’ to ‘All apps’
  • find Telmediq and turn it off

Go to Settings / Apps / Telmediq

• Usage info,
  Mobile data
  • Allow background data usage
• App settings,
  Notifications
  • Allow Notifications
  • Bypass DND / Set as Priority Enable
  • If there are Categories, make sure that for each one, Sound is not 'None' or 'Silent'
    
    • this occasionally changes after updating from 7 (Nougat) to 8 (Oreo) or 9 (Pie)
• Permissions
  • Camera (to attach photos of face sheets, etc)
  • Microphone (to take or place VoIP calls/callbacks from within the app)
  • Phone (to trigger regular calls/callbacks from within the app, with or without Call ID blocking)
  • Storage (to attach documents or Gallery images)