In order to access the 2 way audio function you need to go to the Events tab. That is the tab where you normally watch your live and stored videos from a particular camera. In order to go to the Events tab from from anywhere in the app:
1. Click on the main menu icon on the top left form anywhere in the app.
2. The main application menu will be displayed. Click on "My Cameras" to get a list of your cameras.
3. A list of cameras will be displayed. Click on the camera that you want to watch.
4. You will be directed to the Events tab.
On the top part of the screen you will see live video streamed from the camera. If you click on live video, you will see panels coming up from the left and the right. From the right panel you will be able to use the 2-way audio feature by clicking on "Hold To Talk" button.
You need to click and hold the button to send your voice across to the camera. Your voice will be sent to the camera as long as you keep holding the button. When you lift your finger, the audio will be interrupted. Co-centric circles will emanate from the button as long as you hold it as an indicator that your voice is being transferred to the camera.