JPH06121043A - Communication system - Google Patents

Abstract

PURPOSE:To provide the communication system which considerably improves the use efficiency by preventing a user from continuously hearing meaningless sounds of a ringing tone signal or a busy tone signal to waste his time at the time of the use of the communication system. CONSTITUTION:When the call originating operation is performed on a calling telephone set 3t to transmit a dial signal to a calling-side exchange station it, this station it transmits a called telephone set discrimination signal to a called-side exchange station 1r and sends the ringing tone signal to the calling telephone set 3t. At this time, various public reports, commercial advertisements of private enterprises, or product advertisements are sent instead of the ringing tone signal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication system in which a plurality of telephones are connected to a switching center via a line network and communicate with each other such as a telephone call.

[0002]

2. Description of the Related Art When attempting to make a call between telephones via a public line network, when the handset of the calling telephone is pulled up from the telephone body, an off-hook signal is generated from the telephone and exchanged via a subscriber line. Sent to the station. The exchange sends a dial tone signal in response to this, and waits for a dial signal in the case of a dial type telephone and a push button signal (generally referred to as a dial signal) in the case of a push button type telephone. When the dial signal is transmitted from the calling side telephone, the calling side switching center transmits identification data of the called side telephone to the called side switching center via a relay station or the like.

If the called telephone is not busy, the called exchange sends a ringing tone signal to the called telephone and a control signal indicating a ringing state to the calling exchange. The calling exchange transmits a ringing tone signal to the calling telephone. When the handset of the called telephone is picked up, a call line is formed between them and a call is made. On the other hand, if the called telephone is busy, the called exchange sends control data indicating the busy state to the calling exchange, and the calling exchange sends a busy tone signal. Send to the local phone.

[0004]

In such a conventional communication system, the caller continues to hear the ringing tone until the handset of the called telephone is picked up. The ringing tone is a single frequency sound of 400 Hz and it is useless to simply keep listening to this sound. When the called telephone is busy, the busy tone signal is transmitted to the calling telephone by the procedure described above.
There may be a case where the busy tone signal, which is an intermittent signal of Hz, is continuously heard, and in such a case, there is waste.

An object of the present invention is to solve the above-mentioned technical problems and prevent a situation in which useless time elapses while listening to meaningless sound such as a ringing tone signal and a busy tone signal when the communication system is used. In addition, it is to provide a communication system with markedly improved use efficiency.

[0006]

SUMMARY OF THE INVENTION The present invention provides communication between a calling side terminal and a called side terminal connected to the calling side terminal via a calling side switching center and a called side switching center. In the system for performing the call, the calling side switching center stores in advance at least one of a ringing tone signal and a busy tone signal transmitted from the calling side switching center to the calling side terminal during a calling operation by the calling side terminal. The communication system is characterized in that the transmitted audio signal is transmitted.

[0007]

In the communication system according to the present invention, when a calling operation is performed by the calling terminal, it is transmitted from the calling exchange to the calling terminal during the period when the called terminal is being called. When the ring tone signal or the called telephone is busy,
Also, instead of at least one of the busy tone signals transmitted from the calling side switching center, a voice signal stored in advance in the calling side switching center is transmitted. This audio signal is
For example, official announcement content such as announcement of election day,
It can be any kind of audio signal, such as a private company advertisement. Therefore, instead of spending unnecessary time listening to meaningless signal sounds such as the ringing tone signal and busy tone signal, the caller is scheduled to hold a public event or a new product of a private company. Since useful information such as information can be heard, the use efficiency of the communication system is significantly improved.

[0008]

1 is a block diagram showing a configuration related to a switching center 1 in a communication system according to an embodiment of the present invention.
FIG. 2 is a block diagram showing the configuration of the communication system 2.
The communication system 2 is composed of a plurality of telephones 3 connected to each other via a switching center 1 and a line network 5. Exchange 1
When the telephone 3 is the calling side, the reference numerals 1 and 3 are shown with a suffix t, and when the telephone 3 is the called side, the reference numerals 1 and 3 are shown with a suffix r.

The exchange 1 includes an off-hook detecting section 5 for detecting an off-hook signal of each telephone 3 and a dial signal detecting section 6 for detecting the above-mentioned dial signal from the telephone 3. The line control unit 7 controls opening / closing of a telephone line with the line network 4 and each telephone 3, and the network control unit 8 controls transmission / reception of signals with the line network 4.

On the other hand, the exchange 1 has a dial tone signal generator 9, a busy tone signal generator 10 and a ring tone signal generator which generate the dial tone, the busy tone and the ring tone, respectively. 11 is provided. Separately from these, for example, a voice recording for recording a voice as described later on a recording medium such as a RAM (random access memory), a ROM (read only memory), an EEPROM (a writable / erasable ROM) or a magnetic tape. Section 12 is used. Any one of these is selected by the switching unit 13 based on an operation state of the exchange 1 to be described later, and the corresponding sound is transmitted to the telephone 3.

FIG. 3 is a perspective view of the telephone 3, and FIG. 4 is a block diagram showing an electrical configuration of the telephone 3. Phone 3
Is provided with a dial circuit 14 for transmitting the dial signal to the exchange 1, and a call circuit 15.
The audio signal output from the speaker 1 of the handset 16
The voice signal from the microphone 18 of the handset 16 is sent to the exchange 1 via the call circuit 15. The telephone 3 is also provided with a storage unit 19 for storing a ring back tone to be reproduced based on a ring back tone signal from the exchange 1 as will be described later, and the acoustic data stored in the storage unit 19 is stored in the CPU ( Under the control of the central processing circuit) 20, it is read by the reproduction control section 21 and reproduced from the speaker 22.

As shown in FIG. 3, such a telephone 3 has
It includes a telephone body 23 and the handset 16. Numeric buttons such as “0”, “1”, ..., “9” for inputting a telephone number or the like are provided on the operation surface 24 of the telephone body 23.
Operation button group 25 including character buttons such as "*" and "#"
Also, various function button groups 26 are arranged.

FIG. 5 is a diagram for explaining the operation of the communication system 2. Please also refer to FIG. 1 to FIG. Figure 5 (1)
Indicates a case where a call is made subsequent to the calling operation. When the handset 16 is picked up from the telephone main body 23 in the calling side telephone 3t, an off-hook signal S1 is transmitted to the exchange 1, and the off-hook detecting section 5 of the calling side exchange 1t switches when the off-hook signal S1 is detected. The dial tone signal S2 from the dial tone signal generation unit 9 is controlled by controlling the unit 13.
It is transmitted to the calling side telephone 3t. At this stage, the calling side switching center 1t is ready to accept the dial signal from the calling side telephone 3t.

Next, the dialing signal S is sent from the calling side telephone 3t.
3 is transmitted, the calling side switching center 1t detects this by the dial signal detecting section 6, and the line control section 7 and the network control section 8 are detected.
The callee identification signal S5 is transmitted to the called exchange 1r via the. The called exchange 1r receives the called machine identification signal S5.
It is detected whether or not the called telephone 3r designated by is busy. If not called, the called telephone 3r
The ringing tone signal S6 is sent to. In the called telephone 3r,
A ringing tone is generated from the speaker 22.

On the other hand, the calling exchange 1t controls the switching unit 13 at the stage of receiving the dial signal S3 and transmitting the called machine identification signal S5 to the called exchange 1r to make a ringing tone. The ringing tone signal S4 from the signal generator 11 or the voice signal AS from the voice recorder 12 is transmitted.

Here, the audio signal recorded in the audio recording unit 12 is, for example, a notification of the election date of the national election, the head of a prefecture, a municipality, or the election of a member of the municipality concerned,
Notifications such as various public event schedules may be used, or notifications or instructions of various information corresponding to an emergency such as a disaster may be provided corresponding to the area where the calling exchange 1t is installed. Notification or the like may be used. Further, it goes without saying that a corporate advertisement of a private company or a new product advertisement may be used.

When such a voice signal is, for example, various types of advertisement of a private company, a plurality of types of advertisement may be continuously flowed using, for example, an endless tape. Further, when the ringing tone signal S4 is changed to the voice signal AS such as an advertisement of a private company, the calling side telephone 3t is based on a special contract with the owner of the calling side telephone 3t. It is also possible to carry out a billing process for reducing call charges to the.

When the called telephone 3r is in a calling state and the handset 16 is picked up by the called telephone 3r, an off-hook signal S7 is transmitted to the called exchange 1r, and the called exchange 1r sends the off-hook signal S7. Receiving and calling exchange 1t
A call path formation request signal S8 is sent to the. In response to this, the calling side switching center 1t establishes a call path between the calling side telephone 3t and the called side switching center 1r, so that the calling side telephone 3t and the called side telephone 3r talk. S9 can be sent and received.

FIG. 5B shows the case where the called telephone 3r is busy. After the calling side telephone 3t goes off-hook, the dial signal S3 is transmitted to the calling side exchange 1t,
The procedure until the calling side switching center 1t transmits the called machine identification signal S5 to the called side switching center 1r is the same as the description in FIG. 5 (1). As described above, the called exchange 1r detects whether the called telephone 3r is busy and, if busy, transmits the busy state signal S10 to the calling exchange 1t. . In response to this, the calling side switching center 1t controls the switching unit 13, and the busy tone signal S11 from the busy tone signal generating unit 10 is received.
To the calling side telephone 3p. As a result, the calling side telephone 3t hears the busy tone.

In the present invention, the voice signal AS as described above can be used instead of the busy tone signal S11. In this case, since it is necessary to distinguish it from the voice signal AS replaced by the ringing tone signal S4, for example, in the interval between the various notification texts or advertisements, the fact that the calling state is present or the called telephone 3r is busy. You may make it repeat the message that it is.

As described above, in the present embodiment, the telephone 3
When trying to make a telephone call using a telephone, it is possible to avoid a situation in which a meaningless ringing tone signal is continuously heard while the called telephone 3r is being called, and various public announcements, corporate advertisements of private companies, or new products are avoided. You can listen to useful information such as advertisements. As a result, it is possible to achieve a communication system whose use efficiency is significantly improved.

[0022]

As described above, according to the present invention, when the call origination operation is performed by the call origination terminal, the call origination switching center switches from the call origination terminal to the call origination terminal while the callee terminal is being called. When the ringing tone signal being transmitted or the called telephone is busy, at least one of the busy tone signal also transmitted from the calling exchange is replaced by the calling exchange. The stored voice signal is transmitted. This audio signal can be, for example, an official notification content such as notification of election day, or an audio signal of any type such as advertisement of a private company. Therefore, instead of spending wasted time by continuing to hear meaningless signal sounds such as the ringing tone signal and busy tone signal, the caller is scheduled to hold a public event or a new product of a private company. Since useful information such as information can be heard, the use efficiency of the communication system is significantly improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration related to a switching center 1 according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a communication system 2.

FIG. 3 is a perspective view of the telephone 3.

FIG. 4 is a block diagram showing an electrical configuration of the telephone 3.

FIG. 5 is a diagram illustrating an operating state of the communication system 2.

[Explanation of symbols]

 1 switching center 1t calling side switching center 1r called side switching center 2 communication system 3 telephone 3t calling side telephone 3r called side telephone 10 busy tone signal generating section 11 ringing tone signal generating section 12 voice recording section 13 switching section

Claims (1)

[Claims] 1. A system for performing communication between a calling side terminal and a called side terminal connected to the calling side terminal through a calling side switching center and a called side switching center. At the time of a calling operation by the terminal, a voice signal stored in advance in the calling side switching center is transmitted as at least one of a ringing tone signal and a busy tone signal transmitted from the calling side switching center to the calling side terminal. A communication system characterized in that