<img class=" wp-image-770 alignleft" src="https://nanotek.thedev.ca/wp-content/uploads/2015/12/NanoVoice-Banner-image have a peek here.jpg” alt=”NanoVoice Banner image” width=”414″ height=”87″ />1: Door phone entry buzzer integration This feature allows you to integrate an analog door phone so that you can have a two-way call with visitors and then unlock the door from your phone if you deem them worthy. A great way to upgrade the security…