Bosch NBC-265-P Installation And Operation Manual page 93

IP Camera 200 Series
All connected users receive audio signals sent from the camera
but only the user who first pressed the F12 key can send audio
signals; others must wait for the first user to release the key.
Bosch Security Systems Installation and Operation Manual
Operation via the browser | en
AR18-10-B012 | v1.5 | 2011.01
93