System and method of restricting incoming calls by comparing the forwarded-from directory number to a directory number stored within the network
July 31, 2016. 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 ReferencesCommunication system selective call screening arrangement Discretionary call forwarding Call routing in mobile telephone systems Personal communication service with mobility manager Personal communications service using wireline/wireless integration Blocked call notification system Method and apparatus for selectively blocking incoming telephone calls Selective screening of incoming calls for cellular telephone systems Control of call forwarding by a target telephone Apparatus and method for forwarding incoming calls InventorsAssigneeApplicationNo. 690121 filed on 07/31/1996US Classes:455/417, Call diversion379/196, At switching center379/211.02Call forwardingExaminersPrimary: Hudspeth, DavidAssistant: Sofocleous, M. David Attorney, Agent or FirmInternational ClassH41M 011/00AbstractThe present invention provides a method and apparatus for selectively restricting only forwarded calls. Upon realizing that an incoming call was incorrectly forwarded, the terminal receiving the incoming call transmits to a telecommunications exchange an indication requesting activation of a subscriber feature that will restrict only forwarded calls from the terminal forwarding the call. The directory number for the terminal forwarding the call is retrieved from a register. That retrieved directory number is correlated with the directory number representing the terminal incorrectly receiving the forwarded call and the correlated data is stored at a database. Upon the receipt of the next incoming call, the telecommunications exchange determines that the call is forwarded. Then, the directory number associated with the forwarding party is compared against the data previously correlated and stored in the database. If the directory number associated with the forwarding party matches the directory number stored in the database, the call is rejected.Other References
Field of SearchIncluding personal numbering system (i.e., intelligent network for subscriber tracking or follow-me subscriber feature)Home location registration (HLR) or visitor location registration (VLR) detail Call routing (e.g., to prevent backhaul, routing efficiency, least cost, or alternate routing) Call diversion | |
