Telephoning74Normal callWhen you are called, the caller’s call number is displayed (if transmitted). If this callnumber is also recorded in your phone book, you will see the person’s name instead.External calls from unknown call numberWhen you receive an external call where the caller is displaying a different call numberthan the one actually technically being transmitted (CLIP no screening), a “?” appearsnext to the call number on the display. If the call number indicated on the display issaved to a phone book entry, the name is displayed as usual along with a questionmark. Note: Display of the “?” can be deactivated by the system administrator.Call for a virtual call number (Tele Secretary)Call numbers not assigned to any telephone or user (virtual call numbers) can be con-figured on the Aastra 800 / OpenCom 100. The system administrator can divert avirtual call number to another internal call number, e.g. the call number of your tele-phone. This kind of diverted call is signalled on your telephone just like a normal call.VIP callsVIP calls from authorised users are signalled to you even when call protection, callwaiting protection are activated or call forwarding is programmed. You hear themelody (please refer to the “Melody” section on page 110 also) and see the entry VIPcall along with the caller’s call number on the display. Accept the call just like a normalcall.Multiple trunk keysIf your telephone has multiple trunk keys configured on it (please refer to page 55),the display shows which call number the call is for, e.g. For:20.Calls During a ConversationWhile you are making a call, any incoming calls are signalled acoustically as well as vis-ually on the display (“Call Waiting”). Call waiting protection must be deactivated forthis to happen (see page 124).You are making a call, hear the call waiting tone and see the text Callwaiting as well as the name or call number of the subscriber waitingon the display.Press the end key to end the current call. The call waiting call is nowsignalled to you just like a normal call.
