| 摘要 |
<p>A method, an apparatus and a system for implementing call control between different systems are disclosed. The method includes: receiving a first paging message sent by a Mobile Switching Center (MSC) and sending a second paging message to a called terminal via a data network; receiving a first paging response returned by the called terminal after receiving the second paging message and sending a second paging response to the MSC; after receiving a resource Assignment Request message sent by the MSC after receiving the second paging response, returning a resource Assignment Complete message to the MSC; and returning a call answer/rejection message to the MSC according to the selection of the called user. With the method, the apparatus and the system disclosed, it is avoided that the MSC makes the wrong decision of being not in a service area due to not receiving the paging response in time, the communication efficiency is improved, and the caller is enabled to hear a ringback tone normally so as to improve the user experience.</p> |
