作者: Shuichi Mitsubishi Denki Kabushiki Kaisha Seki
DOI:
关键词: Rotary dial 、 Telephone exchange 、 Telecommunications 、 Class 5 telephone switch 、 Telephone line 、 Telephone network 、 Mobile radio telephone 、 Telephone switchboard 、 Class 4 telephone switch 、 Engineering
摘要: In a related art mobile telephone system, the generation of an RBT (ring back tone) and busy tone is realized by transmitting data registered in network system to calling telephone. according this invention, like are previously called telephone, when originates call corresponding operating state transmitted Accordingly, can be easily changed with user's original melody or like, whereby it possible improve service for user.