| 摘要 |
<p>A method for handing over an alerting phase session with customized alerting tone is disclosed. The method includes: when the handover occurs in an alerting phase session with a customized alerting tone in the way of early session, a mobile switching center initiating a handover of a normal media negotiation dialog and the MSC or customized alerting tones application server initiating a handover of customized alerting tone session. A system for handing over an alerting phase session with customized alerting tone is also disclosed, and the system includes a mobile switching center and a customized alerting tones application server. In the present method and system, even the handover from PS network to CS network occurs, the service experience of the calling user on the customized alerting tone session will not change, thus the normal call request is not affected and there is no need to modify the exiting IMS architecture.</p> |
