Remote control facsimile apparatus with remotely set operation mode

Claim 1

A remote-controlled facsimile apparatus in which a predetermined operation mode corresponding to number information received from an external calling unit via a telephone line is executed only when said facsimile apparatus is set in a predetermined condition, said facsimile apparatus comprising: memory means for storing various service codes corresponding to the number information being received from the calling unit via the telephone line; first control means for controlling connection of said facsimile apparatus to the telephone line, said first control means including a DTMF signal detection circuit for detecting the reception of a DTMF signal transmitted from the calling unit via the telephone line; second control means, coupled to said first control means and said memory means, for controlling the overall operations of said facsimile apparatus, said second control means executing a predetermined operation mode corresponding to the number information being received from the calling unit via the telephone line only when aid facsimile apparatus is set in the predetermined condition; and a modem unit, coupled to said first and second control means, for modulating a carrier signal and for demodulating a modulated carrier signal, said modem unit including a tone output circuit for outputting various procedure signals used by said first control means, and for outputting various signal sounds to the calling unit via the telephone line in response to the number information received from the calling unit, wherein said tone output circuit outputs an acknowledgment signal sound to the calling unit via the telephone line when an image transference request is specified by a DTMF signal received by said first control means and an image data to be transferred is stored in an image memory provided in said facsimilie apparatus, wherein said tone output circuit outputs a non-acknowledgment signal sound to the calling unit via the telephone line when said acknowledgment signal sound has been output by said tone output circuit and a telephone number of a facsimile unit to which the image data stored in the image memory is to be transferred is not correctly specified by a DTMF signal received by said first control means, wherein said tone output circuit outputs an inexecutability signal sound to the calling unit via the telephone line when the image transference request is specified by the DTMF signal received by said first control means and no image data to be transferred is stored in the image memory, said inexecutability signal sound being different from said non-acknowledgement signal sound and being recognizable to an operator at the calling unit for indicating that the facsimile apparatus has not been set in the predetermined condition, and wherein said tone output circuit outputs an executability signal sound to the calling unit via the telephone line when said telephone number of said facsimile unit to which the image data stored in the image memory is to be transferred is correctly specified by the DTMF signal received by said first control means, said executability signal sound being different from said acknowledgement signal sound and being recognizable to an operator at the calling unit for indicating that said facsimile apparatus has been set in the predetermined condition.