| 摘要 |
PURPOSE:To enable full automatic reincoming for a call registered as an unanswered call owing to an incoming during absence, by discrimiating the possibility of an answer to an incoming call through the hook-on operation of a subscriber. CONSTITUTION:When a calling subscriber 2 calls a called subscriber 3 and an unswering state continues, the subscriber 2 discriminates the unanswering state by receiving a special tone and then dials a special number of automatic re- calling registration. This number is inputted to a common controller 8 and written in a calling subscriber memory and a called subscriber memory. Once the call subscriber 3 performs on-hook operation, data on the calling subscriber is read out of the calling subscriber memory to call the calling subscriber 2. |
