1.1 Incoming Call FeaturesFeature Guide 451.1.3.3 Call WaitingDescriptionUsed to inform a busy extension that another incoming call is waiting. The busy extension user can answerthe second call by disconnecting the current call or placing it on hold.The following notification method can be assigned for each extension depending on the call waiting and thetelephone type:a) Call Waiting Tone: Tone from the handset or built-in speakerb) OHCA: Voice from the built-in speakerc) Whisper OHCA: Voice from the handsetd) Off: No notification.This feature is also known as Busy Station Signalling (BSS).Conditions• Automatic Call WaitingThrough system programming, it is possible to select whether a call waiting tone is automatically sentto the extension when receiving trunk calls, doorphone calls, external sensor calls and hold-recall calls.Through system programming, it is also possible to select whether extensions will receive AutomaticCall Waiting from intercom calls.• Call Waiting call for an extension in a VM group (DPT/DTMF) is not available.• Data Line SecuritySetting Data Line Security cancels the Call Waiting setting. (→ 1.11.5 Data Line Security)• Call Waiting ToneA PT user can hear different Call Waiting tones for trunk call and intercom call if "Tone 2" has beenselected through personal programming (Call Waiting Tone Type Selection). If "Tone 1" has beenselected, the same Call Waiting tone will be heard for both trunk call and intercom call.All Call Waiting tone patterns have a default (→ 3.2.1 Tones/Ring Tones).• Caller InformationWith the Call Waiting tone, the caller's information flashes on the display for five seconds, followed bya 10-second pause, then flashes again for five seconds.• Call Waiting from the Telephone CompanyBesides the Call Waiting service within the PBX, the Call Waiting tone offered by an analogue line fromthe telephone company informs the extension user of another incoming trunk call that is waiting. He cananswer the second call by disconnecting the current call or placing it on hold using EFA. For details,consult your telephone company.Call Waiting Caller ID (Visual Caller ID):Call Type Notification MethodDPT IP-PT Other TelephoneIntercom Call Call Waiting tone/OHCA/Whisper OHCA/OffCall Waiting tone/Whisper OHCA/OffCall Waiting tone/OffTrunk Call* Call Waiting tone/Off*: Including a doorphone call, call via an incoming call distribution group, and a trunk call transferred fromanother extension.
