Enhanced call waiting
October 20, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3784721 Method and apparatus for automating special service call handling Conversational telephone call distributor Device to automatically screen incoming telephone calls, determine the identity of the caller and process the call accordingly Method and apparatus for screening telephone calls Method of providing person locator service Method for completing the connection between a telephone exchange and the phone subscriber's line in response to the reception, at the exchange, of a pre-established code Telecommunications systems Automated telephone voice service system Telephone paging system and method InventorsAssigneeApplicationNo. 210347 filed on 03/18/1994US Classes:379/215.01, Call Waiting379/88.19, Call source identification379/197, Central office379/202.01, Conferencing379/207.13, Party identification or validation (e.g., personal identification number (PIN))379/211.02, Call forwarding379/214.01, Secretarial or answering service379/246Of line or trunkExaminersPrimary: Hong, Harry S.Attorney, Agent or FirmForeign Patent References
International ClassesH04M 003/42H04M 001/57 H04M 003/50 H04M 003/58 93.26 202 203 204 205 206 212 AbstractA method of and apparatus for providing telecommunication services to a user. When the user is engaged in a first telephone call via a telephone switch with a first party and a second party attempts to place a second telephone call to the user via the switch, the method and apparatus advise the second caller that the user is engaged in a telephone conversation and allow the second caller to determine whether to interrupt the user or choose another alternative. The user can then decide whether to accept the call from the second caller, putting the first caller on hold, or to refuse the second call. Alternative embodiments are disclosed where the user is advised of the identity of the second caller (or wherein the user has previously authorized certain callers to interrupt a current call with a new call), and then the user can decide whether to accept the call from the second party (placing the first party on hold) or to deny the second party (in which case the second party is transferred to a message center).Other References
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