FIX ANDROID VIDEO CALL APP (LINPHONE SDK)

Hi guys,

I have a video calling app that runs on LINPHONE CLIENT.

play.google.com/store/apps/details?id=com.schonell&gl=SG

The only function of the app is to receive video calls.
Its mostly working for most users.

However, it has several bugs rergarding calls that need fixing such as:

1. app calls sometimes no call window pop up
2. app calls no sound on some devices

Goal is to ensure all calls work 100% on all android phones from android 10 and up.

Applicants WILL NEED to have experience in linphone SDK libraries in order to complete this assignment.
Applicants WITHOUT LINPHONE experience WILL NOT BE ABLE TO COMPLETE THIS TASK.
NO FIX= NO PAY
Thank you for your time!