| 摘要 |
<p>The present invention relates to method and apparatus for providing sounds for substituting ringback tones. The present invention provides method and apparatus for providing sounds for substituting ringback tones comprising: receiving a first call connection request signal requested from the calling terminal in the calling switching center to the called terminal; transmitting a call signal to the called terminal by corresponding to the first call connection request; judging whether the calling terminal is registered on the service for providing the sounds for substituting ringback tones; when the calling terminal is registered on the service for providing the sounds for substituting ringback tones as a result of the judgment, transmitting a second call connection request signal to the home switching center, and receiving a second call answer signal generated by corresponding to the first call connection answer signal that the home switching center receives from the generator for generating the sounds for substituting ringback tones, and transmitting a third call connection answer signal corresponding thereto to the calling switching center, wherein the generator for generating the sounds for substituting ringback tones extracts the sounds for substituting ringback tones corresponding to the calling terminal by corresponding to the third call connection request signal, and transmits the extracted sounds for substituting ringback tones to the calling terminal, through the calling switching center, using a speech path established between the calling terminal by means of the first, second, and third call connection request signals and answer signals.</p> |
