| 摘要 |
The present disclosure discloses a method and a system for implementing a call by a media gateway, comprising: setting a master control network element in a media gateway cluster, and establishing a mapping relationship between a user number and the media gateway in the master control network element (100); when the media gateway determines that an uplink protocol interface corresponding to a calling party is interrupted, the media gateway transmits a dialing tone to the calling party and acquires the called party number, and requests the master control network element to determine a media gateway to which the called party belongs; the master control network element determines the media gateway to which the called party belongs according to the mapping relationship stored therein, and informs the media gateway initiating the request; the call between the media gateway as a calling gateway that initiates the request and the determined media gateway to which the called party belongs is completed (103). In the method of the present disclosure, under the help of the master is control network element, normal conversation services of the users of the media gateway can be guaranteed even if the protocol service interface between the media gateway and the core network equipment is interrupted through the interactions among the media gateways in the media gateway cluster.
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