1.7 Busy Line/Busy Party FeaturesFeature Guide 971.7.4 Second Call Notification to Busy Extension1.7.4.1 Second Call Notification to Busy Extension—SUMMARYDescriptionWhen attempting to call a busy extension (ringing or having a conversation), an extension usercan send call waiting indication to the busy extension (Call Waiting). The notification receivingmethod depends on the called extension’s personal setting and the telephone type:Conditions• Each extension user can choose to receive Call Waiting tone, OHCA, Whisper OHCA, ornone of these.• OHCA and Whisper OHCA are enabled or disabled by the COS of the calling extension.• OHCA and Whisper OHCA do not work for some telephone types. In such cases, the CallWaiting tone will be sent to the called extension.• The notification receiving methods (Call Waiting tone, OHCA, and Whisper OHCA) areavailable when the called extension is having a conversation with other party. If not, thecalling extension will be kept waiting until the called extension becomes available toreceive the notification. Even while waiting, the calling extension will hear a ringback tone.• If none of these notification receiving methods, Call Waiting tone, OHCA, or WhisperOHCA is set at the called party, the caller will hear reorder tone.NotificationReceiving MethodDescription Details inCall Waiting Tone Sends the Call Waiting tone to the busyextension.• 1.7.4.2 CallWaiting ToneOff-hook CallAnnouncement(OHCA)Talk with the busy extension using the built-inspeaker and microphone of the called extensionwhile the existing call is made using the handset.• 1.7.4.3 Off-hook CallAnnouncement(OHCA)Whisper OHCA Give a message to the busy extension throughthe handset.• 1.7.4.4Whisper OHCACallingExtension’sOHCA COSModeCalled Extension’s Call Waiting ModeOFF ONCancel Call Waiting Tone OHCA Whisper OHCADisable Call WaitingdisabledCall Waiting tone Call WaitingtoneCall Waiting toneEnable Call WaitingdisabledCall Waiting tone OHCA(or Call Waitingtone)Whisper OHCA(or Call Waitingtone)
