Sequentially displays full screen images, one camera after another typically at 3 to 5 seconds intervals. While the image source from one camera is displayed on screen the other camera sources are not being recorded. VLAN - Webcam - Generally, a digital camera designed to take digital photographs and transmit them over the internet. Most webcams require additional PC software to operate. Traditionally, these inexpensive lower-end cameras are for home use only. Businesses considering a webcam presence should opt for a more robust and reliable network camera option such as ORCA.