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Caller-controller barge-in telephone service
| Details |
Inventors: Harrison, Colin George; Dunn, James M.; Stern, Edith Helen; Willner, Barry Edward;
Assignee: International Business Machines Corporation (Armonk, NY)
Primary Examiner: Hong; Harry S.
Assistant Examiner:
Attorney, Agent or Firm: Lieber; Robert, Tomlin; Richard A.
A caller-controlled barge-in telephone service, managed by telephone systems, intercepts telephone calls directed to instantly busy telephone lines predesignated as objects of this service, and: 1) verifies that the called line is a respectively predesignated object of this service and that the caller is entitled to invoke the service relative to that line; and 2) forms a bridging connection between the caller and parties to a telephone call instantly busying the called line. Verification that a caller is entitled to the service can be implemented by playing a voice announcement requesting the caller to speak or key in an authorization code. If the caller fails to respond or returns an invalid code, the caller is either disconnected or transferred to a voice mail service. Disconnection of the caller may be preceded by a voice announcement (e.g. a spoken "goodbye"). If the called site has call waiting service, that service is applied for a predetermined time to allow the party currently using the called line to voluntarily respond to the associated call waiting signals. If the call waiting signals are not acted upon within the predetermined time, functions associated with barge-in are invoked to forcibly join an authorized caller to the busy connection at the called line. Use of the invention in various network environments is described, including use in the PSTN, in public data networks such as the Internet, and in private data networks. Limited use by a guest of an authorized subscriber is also described. |
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DETAILED DESCRIPTION In accordance with our invention, telephone systems (either existing or yet to be developed) would be adapted to provide and support an automated barge-in service or feature that is controlled directly by a subscriber to that service or by a party pre-designated by a subscriber as authorized to use the service.
In a preferred embodiment, when a subscriber or authorized party calls a specific telephone number entitled to automated barge-in service (e.
g.
a home or office number), and that number is busy, the call is automatically routed to or intercepted by telephone system apparatus adapted to: (a) verify that the caller is authorized to use automated barge-in; (b) that the number called is both that associated with the respective caller and currently busy; and (c) establish a conference connection between the authorized caller and the associated called number if conditions (a) and (b) are confirmed; the conference connection enabling the caller to speak directly with people currently using the called number.
In this embodiment, if the called site is subscribed to Call Waiting service, the routing to or interception by the apparatus handling automated barge-in is delayed until a predetermined number of call waiting tones or clicks have been applied to and apparently ignored at that site.
The process for confirming conditions (a) and (b) above, as presently contemplated, involves presentation of a recorded or synthesized announcement requiring the caller to speak or key in a password or other identification function uniquely associated with their authority to use automated barge-service in respect to the called number.
If the caller fails to respond, or responds with an incorrect identification, barge-in action would not be provided.
In such instances, if the called site has voice mail service, the call would be routed automatically to the facility managing the voice mail service, allowing the caller to leave a recorded voice message.
If the called site does not have voice mail service, the apparatus handling the automated barge-in function would present the caller with a recorded announcement indicating that the caller is being disconnected--e
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Ring Tones 
