Method and system for controlling ringback tone
A ringback tone and ringing technology, applied in the communication field, can solve the problem that the business logic cannot choose to play the ringback tone, etc., and achieve the effect of enriching services
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[0027] The current NGN service opening system does not have the function of service control ring back tone. According to the rich service characteristics of NGN, the upper layer application is required to control the ring back tone. For the service of personalized ring back tone, the application needs to actively play the color ringback tone to the calling party. Ring tone; and in order to maintain the experience of traditional public switched telephone network (PSTN) users, some services need to transparently transmit the ringback tone or prompt tone played by PSTN to the calling party.
[0028] The system structure of NGN open architecture is as follows: figure 1 shown, where:
[0029] The soft switch is used to complete functions such as service triggering, routing and call connection, and interacts with the service capability gateway through SIP signaling. After judging that the call triggers the service, the softswitch forwards the call to the service capability gateway ...
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