Patent ID: 6526132
Filing Date: 2003-02-25
Classification: H04M

Abstract:
A bi-directional Calling Identity Delivery (CID) system, comprising:a first CID unit of a destination phone set that receives, displays, and stores first CID data of a call, and displays, stores, and transmits second CID data of a prior call; a call-originating terminal that receives the corresponding second CID data in response to a CID data request signal; and a second CID unit of a destination exchange that transmits a CID data transmission control signal to the first CID unit, receives the corresponding second CID data from the first CID unit, and transmits the corresponding second CID data to the call-originating terminal, wherein the first CID unit transmits the corresponding second CID data to the second CID unit in response to receiving the CID data transmission control signal, and the second CID unit transmits the CID data transmission control signal in response to receiving the CID data request signal initiated by the call-originating terminal, the second CID unit including a CID service information managing unit that searches CID service data and generates the second corresponding CID data.