Telecommunications – Radiotelephone system – Special service
Reexamination Certificate
2006-07-31
2010-10-05
Harper, Vincent P (Department: 2617)
Telecommunications
Radiotelephone system
Special service
C455S433000, C379S207160
Reexamination Certificate
active
07809362
ABSTRACT:
The present invention relates to method and apparatus for providing an arbitrary sound chosen by a called subscriber instead of ringback tone to a calling subscriber. In this present invention, if a call is received, a terminating exchanger requests a trunk connection to a sound db server based on the first information on whether or not to replace a ringback tone and the second information on a route to the sound db server that are received from a home location register (HLR), and provides a called subscriber identification for the sound server. Then, the sound db server searches its db for a sound specified by the called, and provides the found sound for the caller instead of a conventional ringback tone via the terminating exchanger connected through a trunk. Through this sequential procedure of network elements, a caller can hear a sound specified by a called instead of a dry ringback tone.
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International Search Report for PCT/KR03/00368 issued Jun. 19, 2003.
Hahm Hee Hyeok
Kim Ki Mun
Lee Sang Yun
No Yeong Tae
Balaoing Ariel
Harper Vincent P
Lowe Hauptman & Ham & Berner, LLP
SK Telecom Co. Ltd.
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