AUTOMATIC CALL FORWARDING METHOD

摘要

The method transfers the arrival of ring signal to the phoen outside the private branch exchange by rigistering the outside phoen number on the inner line transfering unit. The method comprises steps: (A) checking the hook-off of the inner line subscribers and the relay; (B) chekcing that the input dial digits are the external transfer man machine communication identification (MMC ID) when there is no hook off of the subscribers and the relay; (C) returning to the step (A) when the input digits are not external transfer MMC ID and in other case inputting the external phone number by receiving the phone number from the relay to which the ring signal is transfered when the external phone number is input by the relay; (D) inputting the external phone number when the external phone number is input by the inner line subscriber; and (E) checking the last input digit is the end of the MMC ID input and setting the external transfer mode.