Patent ID: RE39959

Claim:
A communication terminal apparatus comprising: a body; transmitting and receiving means arranged in said body; selection operation means arranged on said body operable by a user in a first direction along a surface of said body and in a second direction substantially perpendicular to the first direction; operation detection means for detecting an operation of said selection operation means in said first direction and in said second direction; storage means for storing data of a plurality of communicates; display means for displaying said plurality of communicatees read out of said storage means; and control means for controlling said display means so that one of said plurality of communicatees is selected on said display means in response to a detection result of said operation detection means when said selection operation means is operated in said first direction, and for controlling said transmitting and receiving means to originate a call to said plurality of communicatees selected on said display means in response to a detection result of said operation detection means when said selection operation means is operated in said second direction, and perform a mute operation in response to operating said selection operation means in said second direction, wherein said control means controls said transmitting and receiving means to adjust a reception sound volume in response to operating said selection operation means in said first direction during a communication operation, and wherein said control means controls said transmitting and receiving means to perform a mute operation in response to operating said selection operation means in said second direction.