A two-way communication apparatus used for two-way speech. In the two-way
communication apparatus, a plurality of microphones radially arranged in
a horizontal direction are located at equal distances from a receiving
and reproduction speaker. The plurality of microphones are located in
pairs from the center of the receiving and reproduction speaker. Surface
of a sound reflection plate facing the side surfaces of a speaker housing
are curved to a flared shape and diffuse the sound output from an upper
sound output opening in all orientations in the horizontal direction by
cooperating with the sound reflection surface. A DSP receives as input
sound pickup signals of one pair of the microphones, selects the
microphone for which the highest sound is detected, and transmits the
sound pickup signal to the two-way communication apparatus of the other
party via a telephone line.