JPH0272055U

JPH0272055U -

Info

Publication number: JPH0272055U
Application number: JP15075788U
Authority: JP
Priority date: 1988-11-21
Filing date: 1988-11-21
Publication date: 1990-06-01

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例を示すブロツク図
、第２図は、第１図の動作を時系列に示した図で
ある。図中、１０は発呼者の電話機、１１は電話局の
交換機、１２は入局線、２０は転送先の電話機、
２１は電話局の交換機、２２は出局線、３０は転
送電話装置、３１，３２は接続端子、３３は着呼
検出回路、３４は局線ループ回路、３５はメツセ
ージ再生回路、３６は音声混合回路、３７は双方
向増幅器、３８はスイツチ回路、３９は通話時間
計測回路、４０は切断予告音発生回路である。 FIG. 1 is a block diagram showing an embodiment of this invention, and FIG. 2 is a diagram showing the operation of FIG. 1 in chronological order. In the figure, 10 is the caller's telephone, 11 is the telephone exchange, 12 is the incoming line, 20 is the forwarding destination's telephone,
21 is a telephone exchange, 22 is an outgoing line, 30 is a transfer telephone device, 31 and 32 are connection terminals, 33 is an incoming call detection circuit, 34 is a central office line loop circuit, 35 is a message playback circuit, and 36 is a voice mixing circuit. , 37 is a bidirectional amplifier, 38 is a switch circuit, 39 is a call time measuring circuit, and 40 is a disconnection warning sound generating circuit.

Claims

[Scope of utility model registration request]

A transfer telephone device that can transfer a call received on an incoming line to another telephone device via an outgoing line,
means for sending a message to the calling side of the incoming call line; connecting means for connecting the incoming line to the outgoing line after sending the message; and the connecting unit after a certain period of time has elapsed after the outgoing line starts responding. A transfer telephone device characterized in that it has means for disconnecting the connection.