NEC 128 Multi-PointConference Control, Maintenance, Camera Control, Multi-PointConference Modes

Specifications 5-9

Multi-Point Conference Control

Multi-Point Conference Modes:

•Audio Switch

•Chairman mode (Video selection, local room transmission, multiple address, remote camera control, pointer control, still picture transmission, remote camera switch)

•Selective Receive (Video selection, local room transmission)

Multi-point conference control protocol.

•ITU-T Recommendation H.243 (International Standard Method using LSD)

•NEC own method (NEC's own method using MLP)

Camera Control

Switching modes:

•VisuaLink Remote Control (Local/remote camera control (camera switch, pan/tilt/zoom/preset)

•PC software (sold separately) can control a local camera (near end) and remote camera (far end).

•Speaker detecting. It detects a speaker from the connected microphones (one of three) and automatically switches to the stored preset for that speaker.

Selection for camera type:

•VC-C1

•EVI-D30

Remote camera protocol selection:

•ITU-T Recommendation H.281 (International Standard Method using LSD)

•NEC own method (NEC's own method using MLP)

Maintenance

VisuaLink employs the following maintenance modes:

•VisuaLink firmware can be manually or automatically downloaded from NEC.

•Loopback diagnosis capability

•Communication log (start date, complete date, duration, fee, reason for the disconnection) can be recorded and used by a PC.

VisuaLink 128/384 General Description