ABSENCE TRANSFER SYSTEM

PURPOSE:To transfer only an incoming call from a specific extension telephone set by dialing a special number and an extension number after an absence transfer service registration. CONSTITUTION:When an extension subscriber off-hooks an extension telephone set 1, dials an absence transfer service set special number and the extension number of a transfer destination extension telephone set 4 and executes an on-hook, the extension telephone set 1 is made into an absence transfer service registration condition, and thereafter, until the absence transfer service set condition is released, the incoming call from all extension telephone sets including extension telephone sets 2 and 3 to the extension telephone set 1 is transferred to the transfer destination extension telephone set 4.