| 摘要 |
PURPOSE:To secure the answer for the repeated attendant board in case the operator's call under incoming is transferred to other attendant board, by securing the connection between the line-side terminal of the repeated attendant board and the inter-attendant board transfer trunk terminal of the operator's call trunk via the main link. CONSTITUTION:In case the operator of attendant board ATT.A answers the operator's call and then transfers the call to other attendant board ATT.B, the transfer command is sent via the button operation. Thus the fact that ATT.B has the transfer request given from other part is displayed via the lamp or the like. After the operator of ATT.B had the operation for the fact that the botton operation was given in accordance with the transfer reception, button operation is given in correspondence to trunk ATT.B under the idle state. Thus AT.B is caught, and the loop is formed at the line side in the route of (2) to start marker M. Marker M identifies that the incoming class is switched to the transfer of the operator's call by the originating from the line side of AT.B as well as through the button operation by the operator of ATT.B, gives the answer in the route of (3). |
