| 摘要 |
PURPOSE:To attain simultaneously incoming transfer of plural calls by setting and discriminating an incoming transfer executing flag of a key number master or a key number slave subscriber at the incoming of a call. CONSTITUTION:The incoming tansfer executing flag (EXE flag) of the key number master subscriber PLTP or the key number slave subscriber NPLTP0 is discriminated and set at the incoming of a call in an electronic exchange of stored program control. For example, when the 1st call is incoming to the key number group from a subscriber SUBX1, (1) is set to the flag EXEp of the key number master subscriber and this call is subjected to incoming transfer. When the 2nd call is incoming from a subscriber SUBX2 before the end of the 1st call, since the flag EXEp is already at (1), (1) is set to a flag EXEp-o of the key number slave subscriber and the 2nd call is also subjected to incoming transfer. When the 3rd call is incoming to this key number group, since both the flags EXEp and EXEp-o are at (1), the 3rd call is processed as being busy subscriber. Thus, the incoming transfer of plural calls is attained at the same time. |
