COMMUNICATION SYSTEM

摘要

AS-B (810) measures a telephone call time from a time point when a telephone call, which is audio-originated by UE (100), starts. When a time obtained by subtracting the telephone call time from a time for which the UE (100) can telephone-call becomes a predetermined time, the AS-B (810) issues a multiplex instruction to FAP (200). When having received the multiplex instruction, the FAP (200) multiplexes a sound, which is based on a sound source file stored in advance, with audio data to be transmitted to the UE (100), and transmits the audio data, with which the sound has been multiplexed, to the UE (100).

主权项

1. A communication system in an IMS (IP Multimedia Subsystem) network, comprising:
an application providing unit, a SIP server, a femto-cell base station, and a communication terminal held by a prepaid user, wherein the application providing unit starts measuring a calltime at a time when the communication terminal starts a voice transmitting call, and issues a multiplexing instruction to the femto-cell base station in the case that a time, which is acquired by subtracting the calltime from an available calltime of the communication terminal, reaches a predetermined time, and wherein when receiving the multiplexing instruction, the femto-cell base station sends a tone, which is based on a tone source file stored in advance, multiplexed with voice data which are sent to the communication terminal, to the communication terminal.