CNET CIC-930W - Manual (Page 23)

Sharpness Select the desired option for the sharpness. You can select a
Sharpness value between -3 and 3.
Options
Microphone Enable audio by checking this checkbox. Using Audio will increase
the bandwidth requirements slightly.
Speaker Enable speaker sound by checking this checkbox.
Time Stamp If enabled, the current time will be displayed on the Video image.
Text Display Enable this setting if you want text to be displayed on the Video
image, and enter the desired text - up to 20 characters. This feature
is often used to identify each camera when multiple cameras are
installed.
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