Sharing a Video Display Between Telephony and Computing Devices

An apparatus and method are disclosed that enable the sharing, between a telephone and a computer, of input peripherals such as a keyboard and mouse and of output peripherals such as a video display. Historically, a telephone and a computer have possessed different interfaces with their user and with peripheral devices. Therefore, except where the telephone functionality is in the form of a softphone implemented on a computer, the telephone in the prior art is often incapable of sharing certain peripherals with a physically-adjacent computer. The telephone device of the illustrative embodiment enables sharing between the telephone and a computer, in contrast to sharing peripherals between computers in the prior art. The telephone device is able to determine which user inputs from a shared keyboard or mouse are intended for which data-processing device (i.e., the telephone device itself or the computer), and to transmit displayable signals from both the telephone device and computer to a shared video display device.