METHOD OF IMPLEMENTING LOCAL EXCHANGE, MOBILE SWITCHING CENTRE AND COMMUNICATION SYSTEM Russian patent published in 2013 - IPC H04W76/02 

FIELD: radio engineering, communication.

SUBSTANCE: when both callers are located in a first MSC and a second MSC respectively, the first MSC, in whose zone the first caller is located, obtains the local exchange information of the second caller transferred by the second MSC, then processes the local exchange according to the local exchange information of the first caller and the local exchange information of the second caller, wherein the local exchange information of the first caller or the local exchange information of the second caller includes information about the base station controller (BSC) in whose zone the first caller or the second caller is located. According to the method, in MSC POOL network conditions, even if the caller or called subscriber is located in the zone of different MSC, respectively, the caller or the called subscriber can also know the BSC in whose zone the peer call subscriber is locate and judge whether to start the local exchange in order to process the local exchange in.

EFFECT: providing local exchange.

22 cl, 11 dwg