A. Ensure that background app refresh is enabled for Avaya Workplace. Go to 'Settings' > 'General' > 'Background App Refresh' and make sure it is turned on for Avaya Workplace. This allows the app to run in the background and receive calls even when not actively in use.
B. Check your iPhone's battery settings. Go to 'Settings' > 'Battery' and ensure that Low Power Mode is turned off, as this can restrict background activity for apps.