Call waiting connecting system

Abstract

Abstract PURPOSE:To simplify the hardware constitution of a call waiting circuit, by supplying tone via a network from the outside of a call waiting circuit and switching the channels with the call waiting circuit. CONSTITUTION:This connecting system provides the 1st control pattern 30a in which the 1st, 2nd, and 3rd, 4th terminals are respectively internally connected and the 2nd control pattern 30b in which the 1st, 4th, and 2nd, 3rd terminals are respectively internally connected. Further, when call out is made from a subscriber C to A during the communication of A and B, the 1st and 2nd modes 32, 31, in which the subscribers A, B and a call waiting tone are connected to the 2nd, 3rd and 4th terminals of the control patterns 30a, 30b, are alternately repeated, incoming call indication tone is delivered to the subscriber A while the subscribers A and B are during communication, and call-out tone is delivered to the subscriber C. With this state, connection is made with an arbitrary pattern with the hooking of the subscriber A.

Inventors

• 👤 Yoshiharu Horiba
• 👤 Takuto Kojima
• 👤 Yoshihiro Kaneko

Bibliographic Details