Features447System functions and features as of R3.0syd-0367/1.3 – R3.0 – 03.2013Note:Only one announcement to one group can be active at any one time.Answering with *89 is therefore unambiguous.System configurationTab. 240 Announcement: System configurationReference to Other Features9. 6. 8 IntercomDuplex mode is a special of announcement whereby the called system phone B im-mediately transform A’s announcement into an internal call.Fig. 210 Duplex modeDetailed DescriptionTab. 241 Duplex modeParameter Parameter value RemarksAnnouncements Yes User configurationMessage and announcement group Features:• "Intercom", page 447Interface Operating sequence / signalling on the ter-minal ScopeA Activates announcement Requirement:• A is authorized to make announcementsB The announcement is signalled by a warningtone (3 short signal tones). The call connectionis then switched through (loudspeaker andmicrophone active).Possible interfaces:Internal only:• UserRequirement:• The system phone supports the auto-matic announcement facility (Office 35,Office 45, Aastra 5370, Aastra 5380)• Automatic handsfree is activated on thesystem phone.
