| 摘要 |
PURPOSE:To change a transfer destination telephone number of an incoming transfer telephone set from an optional telephone set by receiving the incoming transfer telephone set and the transfer destination telephone number transmitted succeedingly to a prescribed operation from an optional telephone set and registering the telephone numbers. CONSTITUTION:When the transfer destination telephone number Nb is registered to an incoming transfer telephone set A, the number Nb is stored in an incoming transfer storage section TDa in a storage device MEM and further when effective information E is set in logical ''1'', a prescribed special number is dialed from a telephone set B, a central controller CC connects the telephone set B to an incoming transfer number change device TRE. The TRE transmits a guidance GDS and returns it to the telephone set B. When the incoming transfer telephone number Na is transmitted from the telephone set B, after the TRE stores it, the TRE transmits the GDS to the telephone set B. When the telephone set B transmits an incoming transfer number Nc, the TRE transfers the numbers Na and Nc to the device CC. The device CC starts an incoming transfer number setting section TR', the TR' changes the number Nb stored in the storage section TDa to the Nc and the notice of change is returned to the telephone set B via the TRE. |
