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Wireless centrex call screen    
United States Patent6606505   
Link to this pagehttp://www.wikipatents.com/6606505.html
Inventor(s)Chow; Albert (Hillsdale, NJ); Kim; Jinman (Chatham, NJ); Walker; Hopeton (Haledon, NJ); Wang; Spencer (Parsippany, NJ); Ying; Wenchu (Cedar Knolls, NJ)
AbstractThe instant invention discloses a method and system for providing a novel wireless centrex service that untethers subscribers from the immobility associated with traditional desktop telephones. Essentially, the present invention extends the benefits of wireless voice and data services to subscribers having a need to move within a plurality of localities such as business and hospital campuses. In accordance with the invention, a wireless telephone subscriber can use a standard cellular/PCS telephone as a wireless extension of their desktop phone, while in the proximity of a miniature radio base station capable of communicating with the PCS/cellular telephone. The advantage of such a system is that a subscriber can use the same cellular/PCS telephone that provides service in the public network in the wireless centrex environment. Additionally, the wireless centrex system provides services and features which are similar to those offered to regular centrex telephone subscribers. Exemplary features include, caller ID, call waiting, call hold, call transfer, call forwarding and voice messaging.
   














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Drawing from US Patent 6606505
Wireless centrex call screen - US Patent 6606505 Drawing
Wireless centrex call screen
Inventor     Chow; Albert (Hillsdale, NJ); Kim; Jinman (Chatham, NJ); Walker; Hopeton (Haledon, NJ); Wang; Spencer (Parsippany, NJ); Ying; Wenchu (Cedar Knolls, NJ)
Owner/Assignee     AT&T Corp. (New York, NY)
Patent assignment
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Publication Date     August 12, 2003
Application Number     09/460,383
PAIR File History     Application Data   Transaction History
Image File Wrapper   Patent Term   Fees
Litigation
Filing Date     December 13, 1999
US Classification    
Int'l Classification    
Examiner     Bost; Dwayne
Assistant Examiner     Trinh; Sonny
Attorney/Law Firm    
Address
Parent Case     This application is a continuation-in-part of application Ser. Nos. 09/224,272 filed Dec. 31, 1998 and 09/223,567 filed Dec. 31, 1998. This application relates to the provisional application serial No. 60/114,317 filed Dec. 31, 1998. The complete disclosures of these applications are hereby incorporated by reference.
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Patent Tags     wireless centrex call screen
   
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