Method and system for terminal codec setup of multimedia ring back tone service

• Main Authors: LEE MYUNGSUNG, PARK SEONGSOO, KIM SEONGKEUN, CHUNG WONSUK, OH SEHYUN, LEE DONGHAHK, HAHM HEEHYEOK
• Format: Patent
• Language: Chinese; English
• Published: 26.01.2011
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; WIRELESS COMMUNICATIONS NETWORKS

Disclosed is a method for terminal codec setup for a multimedia Ring Back Tone (RBT) service, which allows RBT sound sources previously set in a sound source-providing server by a called subscriber to be reproduced to an originating terminal by means of a Home Location Register (HLR) and the sound source-providing server for storing the RBT sound sources when a calling subscriber telephones the called subscriber, the HLR storing profile information including whether the subscriber has joined the RBT service. The method includes the steps of: (a) receiving a first codec setup message includinginformation (multimedia codec information) regarding a multimedia codec from the called subscriber, after transmitting an ISDN User Part (ISUP) call connection request message including the multimedia codec information to the called subscriber; (b) when the first codec setup message is received, transmitting a second codec setup message for requesting setup of the multimedia codec to a call-side Base Transceiver Station (