| 摘要 |
PURPOSE:To prevent trouble to a called subscriber due to malfunction by sending out talkie information on a called-subscriber's number and name to a calling subscriber during the transmission of a calling signal. CONSTITUTION:When common controller CM connects called subscriber SUB-B to calling subscriber SUB-A, information actuating memory unit DRUM stored with the called-subscriber's number and name is sent out to incoming trunk ICT, which transmits talkie information in DRUM to SUB-A. Consequently, SUB-A can make sure of called subscriber SUB-B. |
