Can not hear the sound from the camera speaker during audio talk.
（1）Confirm that both Yoosee APP and camera firmware are the latest versions.
（2）Turn on the microphone access to the Yoosee APP.
Iphone : phone settings — Yoosee — microphone.
Android: phone settings — privacy — microphone — Yoosee — voice.
（3）The permission of “Two way talk” should be opened for the visitors via the device owner.
（4） If the problem still exists, please contact the seller for repair.