METHOD AND SYSTEM FOR PLAYBACK OF CALL CONFIRMATION SIGNAL, HOME SUBSCRIBER REGISTER AND MOBILE COMMUNICATION SWITCHING CENTRE

摘要

FIELD: information technology. ^ SUBSTANCE: method is realised by enabling the calling party at a mobile communication switching centre to instruct a playback device to playback a call confirmation signal for the calling terminal in accordance with the service identifier of the call confirmation signal when the home subscriber register of the called party receives a message on lack of a response from the called terminal, and the called terminal sets up the call confirmation signal service. ^ EFFECT: improved call confirmation signal service and reduced load on the communication system. ^ 17 cl, 4 dwg