Patent ID: 8538441

Claim:
A method for implementing local call local switch, the method comprising: a calling side Mobile Switch Center (MSC) receiving a call setup request from a calling user, the calling side MSC and a called side MSC mutually transferring access information of the calling user and a called user, wherein the access information includes location information of the user when the call is set up; the calling side MSC or the called side MSC judging whether the call is a local call in which the calling user and the called user access the same Base Station System (BSS) according to the access information of opposite end user, and judging whether a local switch for looping voice data in the BSS can be triggered; and when judging that the local switch can be triggered, the calling side MSC or the called side MSC informing (the BSS-) to implement the local switch; wherein the access information further comprises: bearer circuit information or a call identifier of user, wherein, the call identifier refers to an identifier which is for associating a call connection between the calling side MSC and a calling side BSS or between the called side MSC and a called side BSS, and the bearer circuit information is used to identify a bearer physical connection that is distributed by the calling side MSC and the calling side BSS or the called side MSC and the called side BSS for the call; and a support local switch indication of user, wherein, the support local switch indication refers to the calling side MSC and the called side MSC indicating whether the calling user or the called user satisfies a local switch condition.