ZMODO ZP-IBH13-P 720P HD H.264 PoE IP Infrared Weatherproof Camera with QR Code Smartphone Setup - Manual of How to Access IP Camera - Manual (Page 95)

Chapter 4 Access to IP Camera on Internet Explorer
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4.3 Two –way Audio (Only for Device Which Supports this Function)
1. Under real-time video, hover your mouse cursor over the Play Window, “Voice” and “Talkback” icon
will appear at the bottom of the Play Window, remove the mouse cursor, the icons will disappear (As
Figure 18).
Figure 18
2. With two headsets (one in PC, the other in IP Camera), now click [ ] to enable voice function, the
voice icon will change to [ ]; click [ ] to enable talkback function, the talkback icon will change to
[ ]. Now you can speak and hear through the IP camera using a PC (As Figure 19).
Figure 19