Customizing the VC120 Video Conferencing System753. Press or to scroll to Call Protocol, and then press .4. Select desired type or Auto from the pull-down list of Call Protocol.5. Press (Save soft key) to accept the change.Call protocol is configurable via web user interface at the path Setting->Call Features->CallProtocol.Bandwidth SettingsBy default, the system automatically detects the available bandwidth and uses this connectionspeed. The VC120 supports connecting to other devices with different bandwidth. If a devicewith lower bandwidth joins a call, the video quality will stay the same or will not reduce a lot.You can specify the uplink and downlink bandwidths for the system to achieve the best result.The uplink bandwidth refers to the max bandwidth of outgoing calls. The downlink bandwidthrefers to the max bandwidth of incoming calls.Available bandwidths for the system are: Auto, 256kb/s, 384kb/s, 512 kb/s, 640 kb/s, 768 kb/s,1024kb/s, 1280kb/s, 1500kb/s, 2000kb/s, 3000kb/s, 4000kb/s, 5000kb/s, 6000kb/s.You can configure the uplink and downlink bandwidth of the system via the remote control orweb user interface.NoteTo configure the uplink and downlink bandwidth via the remote control:1. Press (Menu soft key) to enter main menu.2. Press or to select the Call Features menu.The actual bandwidth depends on the performance of the remote system, and is affected by thequality of the communication channel.
