AUDIO from the 1103 series in VDG Sense
VDG Sense uses the audio decoding type, G.711ulaw.
You have to select this audio codec in the camera of the 1103 series.
Also the Video Type must be switched from default, 'Video', to 'Video&Audio'
See below the screen shot of the web page, Video/Audio of 1103 series camera:
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Additionaly in VDG Sense, the Audio must be checked to ON in the Advanced Device settings.
In the live view, next to the red dot for REC, a blue icon of a speaker will appear.