| 摘要 |
<p>PURPOSE:To enable transfer information service through a paytelephone, by transmitting information in words to a terminal at alloted time by using a timer method. CONSTITUTION:Through the dialing of PB telephone set 1, the channel of trunk 4 is formed and normal audio response service starts between controller 5 and telephone set 1. On an automatic calling system, autmatic calling part 8 acquires idle trunk 4 at the alloted time of timer part 6, and transmits a dial signal from control part 5 to switchboard 2 via trunk 4 to call telephone set 1, so that audio response to telephone set 1 will be made by control part 5 through the formed channel.</p> |
