What I noticed is the speaker is really weak. One has to speak loudly into the remote mic just to hear a faint sound coming out of the camera.
I cannot get anything. I got it to work once using either imou or EasyViewer Lite (just to test since BI wasn't working) and my wife loved it. She said it was the best sounding camera of all the ones we have. Once I closed that app it never worked again in any app. The camera is for a baby room so the talk feature is important for her.