| 摘要 |
PURPOSE:To accommodate a facsimile in the market as it is without improving the facsimile completely and to automatically receive an incoming to the facsimile by utilizing a trunk line for a facsimile calling to a calling of other extensions of the telephone as well, without occupying one line of the trunk line completely for the facsimile. CONSTITUTION:The trunk line 1 is a general trunk line. A trunk line 2 is a trunk line for the incomings of the facsimile and the general trunk line. When the facsimile 7 is used in the other trunk line 1, if there is a incoming to the trunk line 2 not used, and the facsimile 7 of a slave telephone set 6 for the facsimile is used, an extension 11 can not be used. At this time, further when a master telephone set 4 is used by the trunk line 1, etc., the trunk line 2 is connected to an automatic answering telephone set 8, it is informed to the other party by a recorded tape that the facsimile 7 being used. When the master telephone set 4 is not used, a main equipment 3 rings the calling tone ringer of the master telephone set 4. When somebody takes up a receiver of the master telephone set 4 and responds to it, the main equipment 3 connects the master telephone set 4 to the trunk line 2 to make the master telephone set 4 communicate. |
