There is no sound in the two-way intercom of Qingguo camera.

There may be something wrong with the camera, or there may be restrictions.

First of all, if you can't hear the sound when watching the live video, you can check whether the "Parameter Settings-Camera Microphone" option in the camera settings is turned on. If this option is turned off, you will not hear the sound on your phone.

Secondly, please verify whether the left corner of the video surveillance page of the destination client and the mobile phone device itself are turned on mute.