User Guide for the VC800 Video Conferencing System845. Add number for the local contact.6. Tap to accept the change or to cancel.Call history management feature is configurable via web user interface at the pathDirectory->History.Call ProtocolThe VC800 video conferencing system supports SIP and H.323 call protocols. H.323 is commonlyused to communicate to other video conferencing systems. SIP is commonly used tocommunicate with other VoIP devices. You can configure which protocol is to be used when thesystem is making calls. When the Auto call protocol is used, the system preferentially uses theH.323 protocol to place calls. If there is no available H.323 account on the system, the systemwill switch to the SIP protocol. You can also specify the desired protocol for the system to placecalls via the remote control or web user interface.NoteTo configure the call protocol via the remote control:1. Select (More menu).2. Press or to scroll to Setting and then press to expand the menu.3. Press or to scroll to Call Features and then press to enter submenu.4. Press or to scroll to Call Protocol and then press .5. Select desired type or Auto from the pull-down list of Call Protocol.6. Press or to select Save and then press to accept the change.Before configuring call protocol, ensure the remote system supports the call protocol too. Formore information, contact your system administrator.
