Method for providing a subscriber-based ringback tone sound...

Details Method for providing a subscriber-based ringback tone sound... Method for providing a subscriber-based ringback tone sound...

2008-07-15

2008-07-15

Eng, George (Department: 2617)

Telecommunications

Radiotelephone system

Special service

C455S567000, C455S433000, C455S432300, C379S373030, C379S207160

Reexamination Certificate

active

07400882

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.

REFERENCES:
patent: 5926537 (1999-07-01), Birze
patent: 6427076 (2002-07-01), Skog
patent: 7242756 (2007-07-01), Hahm et al.
patent: 2004/0204146 (2004-10-01), Deeds
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patent: 2000-42763 (2000-08-01), None
International Search Report dated Mar. 22, 2004 for PCT/KR2003/001703.

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