| 摘要 |
PURPOSE:To attain the connection to the next caller in the off-hook state by storing in advance plural called party numbers in a storage device to depress a specific button at each end of talking with a called party. CONSTITUTION:In applying dial operation continuously, plural called party numbers are stored in a storage device M. When the control circuit CONT decides that the registration of the called party number is finished at a prescribed timing, the called party number (SUBA) stored at first is read and sent to a PB signal sending circuit PBOR. When the talking is finished, the line between the caller and the called party SUBA is released. The caller operates a specific button BT to make talking with the next called party SUBB. The control circuit CONT sends a disconnection signal to an exchange SWE. Then the controller CONT reads the content of the next called party number SUBB stored in the storage device M and sends it to a PB signal sending circuit PBOR.
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