User Guide for Yealink VC110 Video Conferencing Endpoint66If 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 contact. For more information, refer toAdding Contacts on page 52.6. Press (Save soft key) to save the contact.Call history management feature is configurable via the web user interface at the pathDirectory->History.The VC110 video conferencing endpoint supports SIP and H.323 call types. H.323 iscommonly used to communicate to other video conferencing endpoints. SIP iscommonly used to communicate with other VoIP devices. You can configure which typeis to be used when the endpoint is making calls. When the Auto call type is used, theendpoint preferentially uses the H.323 protocol to place calls. If there is no availableH.323 account on the endpoint, the endpoint will switch to the SIP protocol. You can alsospecify the desired protocol for the endpoint to place calls via the remote control or webuser interface.Note Before configuring call type, ensure the remote endpoint supports the call type too. Formore information, contact your system administrator.