Discretionary call forwarding
Patent 4723273 Issued on February 2, 1988. Estimated Expiration Date: 
September 25, 2005. 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 25, 2005. 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 ReferencesIncoming call identification arrangement Call coverage arrangement Intercept information display for a private automatic branch exchange telephone system Patent #: 4529841 InventorsApplicationNo. 06/779863 filed on 09/25/1985US Classes:379/211.02, Call forwarding379/142.01, RECEPTION OF CALLING INFORMATION AT SUBSTATION IN WIRELINE COMMUNICATIONS SYSTEM379/207.05, Busy signal (e.g., off hook)379/207.08, No answer (e.g., ringing signal, on-hook, idle)379/909ALTERNATIVESExaminersPrimary: Dwyer, James L.Attorney, Agent or FirmInternational ClassesH04Q 11/04 (20060101)H04M 3/42 (20060101) H04M 3/54 (20060101) H04M 3/436 (20060101) AbstractA call forwarding method that allows the called party to selectively forward individual alerting calls based, for example, on the calling party identity or on how busy the called party is at any given time, but without requiring the called party to first answer the calls. The called party can effect the transfer even though engaged in conversation with someone else.Other References
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