1.8.4.4 Whisper OHCADescriptionAn extension user can send a spoken message to a busy extension that will be heard directly by only the calledextension user, through the handset, without interrupting the ongoing conversation. The caller cannot hear theongoing conversation or the called extension user’s reply, unless the called extension user puts the currentparty on hold and switches to the waiting caller.Conditions• COS programming determines which extensions can use this feature.• This feature is available when the calling and called extension use one of the following telephones:– KX-DT300 series– KX-T7600 series– IP-PT• If the Whisper OHCA feature cannot be used due to COS or telephone type, the Call Waiting tone will besent to the called extension. (® 1.8.4.2 Call Waiting Tone)• If the called extension does not use a KX-DT300 or KX-T7600 series telephone or an IP-PT, but forcesWhisper OHCA, the announcement may be heard by the other party.• It is possible to enable Whisper OHCA on any telephone. However, it may not work properly. (e.g., Thevoice may be heard by the other party.)• While an extension is receiving Whisper OHCA, if the extension user places the current trunk call on holdor transfers the current intercom call or trunk call, Whisper OHCA will become disabled and the callingextension will start to hear a ringback tone.• While an extension is receiving Whisper OHCA, if the extension user places the current intercom call onhold, the called extension can talk to the calling extension through the handset.Feature Guide References2.2.1 Class of Service (COS)User Manual References1.8.3 Receiving Call Waiting (Call Waiting/Off-hook Call Announcement [OHCA]/Whisper OHCA)Feature Guide 1131.8.4 Second Call Notification to Busy Extension
