Patent ID: 6836545
Filing Date: 2004-12-28
Classification: H04M

Abstract:
A communication system comprising:an exchange; and a plurality of telephones accommodated in said exchange, wherein each of said telephones includes: transfer instruction accept means for accepting a transfer instruction from an operator, a plurality of common hold operation means for accepting a hold instruction and a hold release instruction from said operator, and a plurality of display means each provided in association with each of said plurality of common hold operation means, each of which accepts the hold instruction and performs display showing a â€œhold stateâ€  when a corresponding common hold operation means is operated, and accepts the hold release instruction and performs display showing a â€œno hold stateâ€  when said communication common hold operation means is operated during the display showing the â€œhold stateâ€  thereof, wherein said exchange includes: transfer control means for holding a communication partner of one of said telephones under communication and allowing the one of said telephones to request for connection with a first forwarding address telephone, in accordance with the transfer instruction accepted by said transfer instruction accept means in the one of said telephones, hold control means for holding the first forwarding address telephone under communication with the one of said telephones whose communication partner is held by said transfer control means, to associated with a first common hold operation means as one of said plurality of common hold operation means in the one of said telephone, whose corresponding display means performs the display showing the â€œno hold stateâ€ , making said corresponding display means corresponding to said first common hold operation means in the one of said telephones perform the display showing the â€œhold stateâ€  and allowing the one of said telephones to request for connection with a second forwarding address telephone, in accordance with the hold instruction accepted by said first common hold operation means, and hold release means for releasing the first forwarding address telephone held in association with said first common hold operation means, connecting the first forwarding address telephone thus released with the one of said telephones, and making said corresponding display means corresponding to said first common hold operation means in the one of said telephones perform the display showing the â€œno hold stateâ€  in accordance with the release instruction accepted by said first common hold operation means.