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:
Jan. 24, 2012
Filed:
Jun. 28, 2005
Seongsoo Park, Seoul, KR;
Sangshin Lee, Seoul, KR;
Daesic Woo, Seoul, KR;
Donghahk Lee, Seongnam-si, KR;
Wonsuk Chung, Seoul, KR;
Joosik Lee, Seoul, KR;
Myungsung Lee, Seoul, KR;
Seongsoo Park, Seoul, KR;
Sangshin Lee, Seoul, KR;
Daesic Woo, Seoul, KR;
Donghahk Lee, Seongnam-si, KR;
Wonsuk Chung, Seoul, KR;
Joosik Lee, Seoul, KR;
Myungsung Lee, Seoul, KR;
SK Telecom Co., Ltd., Seoul, KR;
Abstract
Disclosed is a method for providing a multimedia Ring Back Tone (RBT) service by using a receiver-side switching center, which comprising the steps of: (a) receiving an ISDN User Part (ISUP) call connection request message including information (multimedia codec information) regarding a multimedia codec from a caller-side switching center when the originating terminal attempts a call connection to a terminating terminal; (b) transmitting the ISUP call connection request message including the multimedia codec information to a sound source-providing server; (c) requesting the caller-side switching center to set the multimedia codec, thereby activating a routing path for the RBT service; and (d) receiving a RBT sound source selected using the multimedia codec information from the sound source-providing server and transmitting the RBT sound source to the caller-side switching center.