PBX Intercept and caller interactive attendant bypass system
Patent 4696028 Issued on September 22, 1987. Estimated Expiration Date: 
September 22, 2004. 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.
September 22, 2004. 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 3111561 3347988 3482057 3510598 3614328 3859473 3867582 Universal answer arrangement for a PABX Optional telephone answering system Remote data line monitor InventorsAssigneeApplicationNo. 06/593526 filed on 03/26/1984US Classes:379/88.24, By generated tone379/212.01, Call transfer379/213.01, Intercept (e.g., dead or changed number)379/214.01, Secretarial or answering service379/233, Direct inward dialing379/88.22Message managementExaminersPrimary: Brown, Thomas W.Attorney, Agent or FirmInternational ClassesH04Q 3/62 (20060101)H04M 3/527 (20060101) H04M 3/50 (20060101) AbstractDisclosed is an intercept system for integrating the personalized services of switchboard attendants associated with on-premises PBX switching systems with the capabilities of the intercept system for allowing calling parties the opportunity to complete their own calls to the on-premises switching systems when the telephone extension numbers of the called parties are known to the calling parties. Depending on the mode of system operation selected, the intercept system either presents all incoming calls directly to the switchboard attendants, or intercepts all incoming calls and presents the caller the opportunity to complete the call, or a combination in which incoming calls are first offered to the switchboard attendants for assistance and then after a time wherein attendant assistance is not gained, the call is intercepted and the caller is given an opportunity to complete the call. When a call is intercepted a bidirectional communication path is established between the caller and the intercept system, wherein a digital announcement circuit transmits an instructional message to the caller soliciting the dialing of the desired on-premises switching system telephone extension number, and a DTMF receiver collects the dialed extension number digits. The digits are then outpulsed to the on-premises switching system and the call to the desired party is completed without the intervention of a switchboard attendant.Other References
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