User Guide for the VC120 Video Conferencing System
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If the call history is more than one page, you can press or to turn pages.
4. Press (Add to Contact soft key).
5. Enter contact name in the Name field.
You can add more than one number for the local contact. For more information, refer to
Adding Local Contacts on page 59.
6. Press (Save soft key) to save the contact.
Call history management feature is configurable via web user interface at the path
Directory->History.
Call Protocol
The VC120 video conferencing system supports SIP and H.323 call protocols. H.323 is commonly
used to communicate to other video conferencing systems. SIP is commonly used to
communicate with other VoIP devices. You can configure which protocol is to be used when the
system is making calls. When the Auto call protocol is used, the system preferentially uses the
H.323 protocol to place calls. If there is no available H.323 account on the system, the system
will switch to the SIP protocol. You can also specify the desired protocol for the system to place
calls via the remote control or web user interface.
Note
To configure the call protocol via the remote control:
1. Press (Menu soft key) to enter main menu.
2. Press or to select the Call Features menu.
Before configuring call protocol, ensure the remote system supports the call protocol too. For
more information, contact your system administrator.
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