Step 1: Open a web browser and enter the IP address of your camera in the address bar (default is 192.168.0.20). If you do not know the IP address of your camera, please refer to the section entitled “How do I find the IP address of my DCS-2136L and access the web-based user interface?” in this FAQ. Press Enter.
Step 2: The username for the administrator account is admin. Enter your administrator password in the password field. If you have not changed this from the default, leave this field blank. Click OK.
Step 3: Click on Setup from the menu at the top of the page.
Step 4: Click Audio and Video from the menu at the left-hand side of the page.
Step 5: To enable the microphone, ensure the Audio in off checkbox is unchecked. To enable the speaker ensure the Audio out off checkbox is unchecked. You can adjust the gain for both the audio in (microphone) and audio out (speaker) using the drop-down menus on the right-hand side of the box.
Click Save Settings to save the current configuration.