Patent ID: 8929947
Filing Date: 2015-01-06
Classification: H04M,H04W

Abstract:
1. A method for implementing local exchange for a local call, comprising: a calling side mobile switch center (MSC) receiving a call setup request from a calling user, and the calling side MSC transferring a local reference to a calling side base station system (BSS) and a called side MSC, and transferring a calling access location information to the called side MSC; and the called side MSC receiving the local reference and transferring the local reference to a called side BSS; and the called side MSC determining that a call is a local call according to the calling access information, and notifying the called side BSS to execute a local exchange; wherein, the step of the called side MSC determining that the call is a local call according to the calling access information, and notifying the called side BSS to execute the local exchange further comprises: the called side MSC judging whether the calling and the called are in a same BSS according to the calling access location information; if yes, and both the calling side MSC and the called side MSC meet the local exchange condition, the MSC notifying the BSS to execute the local exchange, the notification message including the local reference; and the called side BSS receiving a command of executing the local exchange, associating a calling call branch and a called call branch according to the local reference in the command, the association being successful and executing the local exchange, and feeding back the association and execution result to the calling side MSC and the called side MSC.