You can enable the discovery scan to search for H.323 systems that have auto-answer turned on. If you enable the H.323 scan option, the discovery scan runs the H.323 scanner module, which identifies any video conferencing systems in the target range. Access to a video conferencing system enables you to remotely control the camera to monitor the surrounding areas. For example, after you obtain access to an H.323 system, you can listen to any meetings that take place near the system or use the camera to zoom in on any nearby paperwork.