JP2000196706A - Telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically make a call between plural parties and to improve operability by providing a means detecting a response signal showing that a third party makes a response and a control means making the call between plural parties with an original caller based on the response signal. SOLUTION: A control part 1 controls a hook control part 5, off-hooks a line L1 and initializes a caller information reception flag. A call is made by using the line L1. When an incoming call arrives at the line L1 from a third party after the call starts, the control part 1 sets the caller information reception flag in an inner register if caller information of an opposite party is received. A caller depresses a FLASH key from an operation part 2 and switches the line to the third party. For making the call with the third party, a third party call key in the operation part 2 is depressed. When a response detection part 10 detects a response signal that the third party makes a response, the control part 1 controls a channel switch part 6 and makes the call with the third party by using the lines L1 and L2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone set to which a plurality of telephone lines can be connected, and to a telephone set which enables a call between a plurality of parties.

[0002]

2. Description of the Related Art In recent years, various telephones such as stationary telephones have become multifunctional, and various services have been provided by telephone companies.

A service provided to a telephone company includes a service that can receive a telephone number from a caller when a call is received during a call.

[0004] For example, there is a telephone which can be connected to two telephone lines by one telephone, and has a function of enabling a three-party call using the two lines.

[0005] In such a telephone, when a call is received from a third party during a call on one telephone line, a three-party call is carried out between the other party and the other party. If you want to do so, you have to manually call a third party using the other telephone line and then manually enter the three-party call.

[0006]

However, when a three-way telephone call is manually made as in the past, a wrong telephone call,
There is a problem that it takes time to find out the telephone number, it takes time to enter into a three-party call, and the operability is poor.

That is, when a call is received from a third party during a call on one telephone line, a flash operation (hooking: a short on-hook operation) is performed in order to first switch the line to the called party. I do. When making a three-party call, first tell the other party that you want to make a three-party call and have the line disconnected. After confirming that the line was disconnected, the flash operation was performed again to return to the line with the original caller, and then another line was used to make a call to the third party. All of these operations were performed manually.

Therefore, the present invention provides a service that can receive a telephone number from a caller when a call is received from a third party during a call and a call between the three parties is required. Providing an easy-to-operate telephone that tells you to make a call between parties, asks a third party to go on-hook, and simply presses the three-party call button, and the three-party call is automatically established. The purpose is to do.

[0009]

In order to solve the above problems, a telephone according to the present invention is connectable to a plurality of telephone lines and receives a caller telephone number transmitted by a caller telephone number transmission service. A switching means for switching a line to a third party when a call is received from a third party during a telephone call, and a means for automatically switching to the original party when the third party goes on-hook Means for deciding to make a call between a plurality of parties, means for making a call to the third party using an available line after the third party goes on-hook, and a response indicating that the third party has answered A signal detecting means is provided, and a control means is provided for enabling a plurality of parties to communicate with the original party based on the response signal.

Further, the means for automatically switching to the original caller is configured to detect a busy tone signal output when the third party goes on-hook, and to perform an operation.

Further, the means for transmitting to the third party using the free line is configured to automatically transmit the caller's telephone number received upon receiving a call from the third party.

[0012] Further, the telephone is configured to release the means for deciding to make a call between the parties after the call between the parties is completed.

[0013]

FIG. 1 is a block diagram showing a configuration of a telephone according to an embodiment of the present invention. This phone is
It is assumed that a plurality of lines L1 and L2 are connected to an exchange of a telephone office (not shown), and a service is provided which can receive a telephone number from a caller when there is an incoming call during a call.

As shown in FIG. 1, the telephone set includes a hook control unit 5 for controlling the incoming / outgoing call state of each of a plurality of lines, a telephone line switching unit 6 for switching lines, and information such as a caller number. A data receiving unit 3 for receiving, a busy tone detecting unit 4 for detecting a busy tone, and a response detecting unit 1 for detecting a response of the other party
0, a control unit 1 containing a microcomputer, and an operation unit 2 having numeric keys (numerical keys) and other keys
And an amplifying unit 7 for amplifying an audio signal during a call after off-hook, a handset unit 8 including a speaker for converting a user's voice into an audio signal, and a display unit 11 including an LCD panel or the like. And

When a call is made between a plurality of parties, the control unit 1 controls the hook control unit 5 based on signals and data from the busy sound detection unit 4, the response detection unit 10, and the data reception unit 3 to transmit a call. Then, the communication path switching unit 6 switches the line. Therefore, the control unit 1 has a sender information reception flag in an internal register. Here, the caller information reception flag is a flag indicating whether or not caller information has been received from a third party when there is an incoming call from a third party during a call.

Next, FIG. 2 shows a flowchart in the case of making a call between a plurality of parties.

The control unit 1 controls the hook control unit 5 and
L1 is off-hook and the caller information reception flag is initialized (cleared) (steps 1 to 3). Make a call using line L1 (step 4) and start talking (step 5)
Thereafter, when an incoming call is received from a third party on the line L1 (step 6), when the caller information of the other party is received, the controller 1 sets a caller information reception flag in an internal register (steps 7 to 7). 8).

The caller presses the FLASH key on the operation unit 2 (step 9) to switch the line to a third party. When a three-way call is to be made, the fact is notified to the other party, an on-hook request is made, and the three-way call button on the operation unit 2 is pressed (step 10).

If the busy tone detector 4 detects a busy tone (step 11), it automatically sends out a FLASH signal,
The call is returned to the original talker (step 12).

Next, when the three-way talk button is pressed and a three-way talk is performed (step 13: YES), the control section 1 controls the hook control section 5 to off-hook the line L2 (step 14). .

If the caller information reception flag is set (step 15: YES), off-hook is automatically performed using the line L2 based on the caller information of the third party obtained in step 7, and A call is sent to the person (step 16).
When a response signal indicating that the third party has responded is detected by the response detection unit 10 (step 17), the control unit 1 controls the communication path switching unit 6 (step 18) and uses the lines L1 and L2 to perform three-way communication. Make a two-way call.

If the caller information flag has not been set (step 15: NO), that is, step 7
If the caller information has not been received in step, a message is displayed on the display unit 11 prompting the user to make a call to a third party manually. (Step 19) The caller manually inputs the telephone number of the third party from the operation unit 2 using the line L2 and makes a call to the third party (Step 20). When a response is detected by the response detection unit 10 (step 17), the control unit 1 controls the communication path switching unit 6 (step 18) to perform a three-way communication using the lines L1 and L2.

In this embodiment, an example in which a call is started on the line L1 and a busy call is received on the line L1 has been described. However, a call is started on the line L2 and a busy call is received on the line L2. It can be applied even when there is.

A call is started on the line L1 and a call is received on the line L2, or a call is started on the line L2 and
When an incoming call is received, the caller presses a three-way call button from the operation unit 2, and the control unit 1 controls the call path switching unit 6 to perform a three-way call using the lines L1 and L2. be able to.

In the embodiment, the case of two lines is used.
The present invention can be applied to a telephone having more lines. If there are three or more lines, it is necessary to select an empty line in step 14 of the embodiment. The selection method may be the order of the empty line numbers or a random line may be selected at random.

[0026]

The telephone according to the present invention can be connected to a plurality of telephone lines and receives a caller telephone number transmitted by a caller telephone number transmission service. Switching means for switching the line to a third party when there is an incoming call, means for automatically switching to the original talker when the third party goes on-hook, and making a call between multiple parties Means for determining the response signal, means for transmitting to the third party using an empty line after the third party goes on-hook, means for detecting a response signal indicating that the third party has responded, And control means for enabling communication between a plurality of parties with the original party based on the Therefore, the user can automatically make a call between a plurality of persons, which had to be manually performed conventionally, thereby improving operability and eliminating waste of time due to an operation error.

[0027] The means for automatically switching to the original caller detects the busy tone signal output when the third party goes on-hook, and performs the operation. Can make a call.

The means for transmitting a call to the third party using the free line is configured to automatically transmit a caller's telephone number received when a call is received from the third party, thereby improving operability. There is.

The telephone has a structure in which the means for deciding to make a call between the plurality of persons is automatically released after the call between the plurality of persons is completed, so that the operability is further simplified. .

[Brief description of the drawings]

FIG. 1 is a block diagram of a telephone according to an embodiment of the present invention.

FIG. 2 is a flowchart illustrating a process for making a three-way call according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Control part 2 Operation part 3 Data receiving part 4 Busy sound detection part 5, 9 Hook control part 6 Talk-line switching part 7 Amplification part 8 Handset part 10 Response detection part 11 Display part

Claims (4)

[Claims] 1. A telephone which can be connected to a plurality of telephone lines and receives a caller telephone number transmitted by a caller telephone number transmission service. Switching means for switching to a third party, means for automatically switching to the original caller when the third party goes on-hook, means for deciding to make a call between multiple parties, Means for transmitting to the third party using an empty line after the third party goes on-hook, means for detecting a response signal indicating that the third party has responded, and a call based on the response signal. And a control means for enabling a call between the plurality of parties. 2. The apparatus according to claim 1, wherein the means for automatically switching to the original caller performs an operation by detecting a busy tone signal output when the third party goes on-hook. Phone. 3. The telephone according to claim 1, wherein the means for making a call to the third party using the free line automatically makes a call to a caller's telephone number received upon receiving an incoming call from the third party. . 4. The telephone according to claim 1, wherein the telephone automatically cancels the means for determining that the communication between the parties is to be performed after the communication between the parties is completed.