Specific Caller ID Situations 443Bridged ExtensionTelephonesCaller ID information appears in exactly the same way on a bridgedextension telephone as it does on a non-bridged extension telephone.See “Caller ID” on page 441 and “Long Caller ID Character Strings” onpage 441.Calls That AreForwarded MultipleTimesIf a call is forwarded several times, the Caller ID information of theoriginal caller appears on the top line of the display panel of the ringingtelephone and the Caller ID of the telephone that most recentlyforwarded the call appears on the bottom line. A greater than (>)character appears to the left of the original Caller ID on the top line in thetelephone display panel.Example: A places a call to B, who answers the call and forwards it to C,whose telephone is forwarded to D. While telephone D is ringing, the topline in the display panel contains the Caller ID for A and the bottom linecontains the Caller ID for C. After 5 seconds, only the Caller IDinformation for A appears.External Calls The display of Caller ID information for external calls depends on how thecall arrives at the NBX system.External Analog Line Card CallsAn external call arrives at an NBX system on an Analog Line Card portand is routed to A’s telephone.When A transfers the call to B, the Caller ID (if any is provided by thetelephone company) appears in the top line of B’s telephone displaypanel. If no Caller ID information is available, the extension associatedwith the Analog Line Card port appears on the top line. A’s Caller IDinformation appears in the bottom line.Exception: An Analog Line Card port is mapped to an internal extension.The call is not answered and goes to the call coverage point for theextension. If the coverage point is the receptionist’s telephone, forexample, the receptionist sees the Caller ID information only for theexternal call, and not for any telephone on which the mapped AnalogLine Card Port appears.
