As for this invention, the service provider, for example, the VoIP service provider, mother language or the language which preference of the user is done offering the ability to register to the service of the network base to the user, all network notifications, network prompt, and network service huichiya, that tries can try it is possible to be offered with the mother language of the user. It is possible to be inserted in signal message every especially or the call where this the parameter which is stipulated is input by network with default, is housed.
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