The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 15, 2008
Filed:
Aug. 22, 2003
Hee Hyeok Hahm, Seoul, KR;
Ki Mun Kim, Incheon-si, KR;
Sang Yun Lee, Seongnam, KR;
Yeong Tae NO, Seoul, KR;
Jae Young Park, Sungnam-si, KR;
Hee Hyeok Hahm, Seoul, KR;
Ki Mun Kim, Incheon-si, KR;
Sang Yun Lee, Seongnam, KR;
Yeong Tae No, Seoul, KR;
Jae Young Park, Sungnam-si, KR;
SK Telecom Co., Ltd., Seoul, KR;
Abstract
In a method of providing a caller with a pre-stored sound chosen by a called subscriber instead of a standard RBT (RingBack Tone), an HLR (Home Location Register), when a location request message is received from a call-originating exchanger, furnishes either the call-originating exchanger or a call-terminating exchanger with information on whether or not an RBT is to be replaced for the called terminal. The call-originating exchanger or the call-terminating exchanger then searches, while a trunk connection is established between the exchangers, for a sound code assigned to the called terminal based on the information furnished by the HLR, and provides the caller with a pre-stored RBT-replacing sound associated with the found sound code as an RBT.