JPS63185146A - Telephone connecting system - Google Patents

Abstract

PURPOSE:To attain a conference speech without a constraint from a caller side and from an incoming side by connecting plural telephone sets to an exchange by plural lines or channels and connecting other line during a speech through one line or channel or another remote party through other channel. CONSTITUTION:When the speech is not ended, if the operator of the telephone set 103 depresses the 'conference' key of an instruction input part 59, switch circuits 39, 51 are opened to hold the speech with the telephone set 101 using the A channel, close switches 45, 53 and connect the communication line of the B channel 25 to a speech circuit part 37. Namely, a signal inputted from the B channel 25 is fed to a handset 55 via a network interface part 23, a B channel receiving part 29, the switch circuit 53, an addition circuit 49 and the speech circuit part 37. A voice signal inputted from the handset 55 can be fed to the B channel 25 through the speech circuit part 37, the switch circuit 45, the addition circuit 43, a B channel transmitting part 31 and the network interface part 23.

Description

Detailed Description of the Invention (Objective of the Invention) (Industrial Application Field) The present invention relates to a telephone set connected to a digital communication line having two or more digital communication lines or two or more information channels. This relates to a method for simultaneously connecting to the other party and holding a conference call.

(Prior Art) When a telephone connected to a conventional analog public line receives an incoming call during a call, an audible signal is sent from the exchange. Then, by performing a predetermined input operation from the telephone side, a response signal is sent to the exchange, and the exchange puts the previous party on hold and allows a connection call with the newly incoming party, which is a conference call service between three parties. has not been carried out. Furthermore, conference call services are not provided on the telephone side using two analog public telephone lines.

Further, FIG. 8 shows a one-channel digital communication network, in which a telephone 3.5.7 is connected to the AC 1 Iktil. In such a one-channel digital communication network, if a call is already being made between telephone 3 and telephone f15, exchange
Sends the call to telephone 115 at exchange Ia1, calls 13 from telephone 13 to third party telephone 117, and calls telephone 3.
After the telephone 7 makes a call, a conference call between three parties becomes possible by performing a predetermined input operation.

(Problem to be Solved by the Invention) As described above, in analog communication networks, it is not possible to conduct conference calls between three parties, and in digital communication networks, only the caller of the first call can make a call to a third party. Calls and transfers to conference calls are not possible.

The present invention has been made in consideration of these problems, and its purpose is to provide a telephone connection system that allows conference calls to be made without restrictions from both the calling and called parties.

[Structure of the invention]

(Means for Solving the Problems) In order to achieve the above object, the present invention connects a plurality of telephones to an exchange through a plurality of lines or channels, and during a call through one line or channel, the telephone is connected to another line or channel. It is characterized by providing means for connecting to another party via another channel.

(Operation) Even if you are talking to one party using one channel or line, you can talk to another party using another channel or line.

(Example) An example of the present invention will be described in detail below based on the drawings. FIG. 1 is a block diagram of the configuration of a telephone according to this embodiment. In the figure, a network interface section 11 performs an interface with an A channel 13 of a digital communication network. A
The 'f-Yanel transmitting/receiving section 15 consists of an A channel receiving section 17 and an A channel transmitting section 19. Telephone number buffer section 2
1 is the 1fl A channel receiving unit 17 that received the call on the A channel.
The telephone number of the calling party detected by the caller and the telephone number of the other party at the time of making the call are primarily stored. Network interface section 2
3 interfaces with eight channels 25 of the digital network. The B channel transmitter/receiver 27 is the B channel receiver 2
9 and a B channel transmitter 31. When the telephone number buffer section 33 receives a call on the B channel, the telephone number buffer section 33 transfers the call to the B channel receiving section 29.
The telephone number of the calling party detected by the caller is primarily stored. The adding circuit 35 adds the transmission signal of the communication circuit section 37 and the reception signal of the B channel reception section 29. Switch circuit 39°4
1 disconnects or connects the two signals from the front cylinder circuit 35. The addition circuit 43 adds the transmission signal of the communication circuit section 37 and the reception signal of the A channel reception section 17. Switch circuits 45 and 47 disconnect or connect the two signals from the adder circuit 43. The adder circuit 49 connects the A channel receiver 17 and the B channel 1? The signals received by the channel receiving section 29 are added together. Switch circuits 51 and 53 disconnect or connect the two signals. A display unit 57 to which a handset 55 is connected to the telephone call circuit 37 displays the telephone number of the other party during a telephone call or when a call is received or made. Instruction input section 5
9 inputs an instruction using the soft key. The control section 61 controls each element, and as shown in FIG.
, a display control means 65 for controlling the display section 57 , a communication control means 67 , and a communication mode control means 69 .

Next, the operation of this embodiment will be explained. FIG. 4 is a flowchart showing the operation of this embodiment. For example, FIG.
), three telephones 101, 103, and 105 are not connected via exchange 107, and a call is made from telephone 1101 to telephone 1103, and a call is currently being made using the A'Pv channel ( Step 401). now phone 10
On the display section 57 of No. 3, the telephone number of telephone n101 is displayed as shown in FIG. Telephone II! Suppose that the user wants to make a call from the telephone 1103 to the telephone 105 while continuing the conversation with the telephone 101. Switch 3 in telephone 103
9 and switch 51 are closed and the other switches are listening. That is, in this state, the A channel 13. Network interface section 11. Information input via the A channel receiving section 17 is sent to the switch circuit 51, the addition circuit 490, and the communication circuit section 37.
It is output as voice from the handset 55 via. Also, the voice input to the hand center 55 is transmitted to the communication circuit section 3.
7. Switch circuit 39. Addition circuit 35. Telephone 111 via A channel transmitting section 19 and network interface section 11
Sent to 01. When the conversation between telephone n101 and telephone 103 ends (step 402), the call ends immediately (step 403).

When the call is not over, when the operator of the telephone I1103 presses the V''' key shown in FIG. The call with n101 is put on hold, and switches 45 and 53 are closed, and the communication line of B''f-Yanel 25 and the call circuit section 37 are connected. That is, the signal input from the B channel 25 is sent to the network interface section 23.
B channel receiving section 29. Switch circuit 53. Addition circuit 4
The signal is sent to the handset 55k11 via the 9° communication circuit section 37. Also, the audio signal input from the handset 55 is transmitted to the communication circuit section 37. Switch circuit 45. Adding circuit 43, B channel transmitter 31. B via the network interface section 23
channel 25.

When the operator of the telephone 103 dials the telephone 105, this dial signal is sent to the telephone communication circuit section 37. Switch circuit 45. Addition times 2f143. B channel transmitter 31
．． It is output via the network interface section 23, and a call is made to the telephone 1050 via the B channel (step 4).
06). When the operator of the telephone 105 responds to this, step 407) the operator of the telephone 1103 presses the 1 key again (step 408), all the switch circuits are closed, and the addition circuits 35, 43, and 49 switch between the A channel, the B channel, and The telephone call circuit units 37 are connected to each other, allowing three parties to make a telephone call (step 409).

And as shown in Figure 6, telephone 11101 and telephone IF 110
5 are displayed on display 57 of telephone 1103. When one of the three parties goes on-hook (step 410), the process returns to step 401.

Next, regarding the example shown in FIG. 3(b), a case will be explained using the telephone n103 as an example, in which an incoming call occurs to the telephone IR103 from the telephone 1j1109 while the telephone 101 is making a call to the telephone 11103 and talking. do. When the telephone 103 receives a call from the telephone 109 to the B channel, the incoming call ringtone sounds and as shown in FIG.
09 telephone number is also displayed (step 405). The operator of the telephone 103 can select whether to perform a call waiting call or a three-party conference call by looking at the telephone number of the incoming call.

When making a conference call for three people, when the 1 key is pressed from the instruction input section 59 (step 411), the switch circuits 39 and 51 open and the switch circuits 45 and 53 close, and the telephone 101 using the A channel is opened. The call is put on hold and a response is made to the operator of telephone 109 (step 4).
12).

By pressing the key 1 key again (step 408), all the switches are closed, and a conference call is held between the three parties (step 409).

If the call waiting key is not pressed in step 411 but the call waiting key is pressed (step 413), each time the call waiting key is pressed, the states of switch circuits 39.51 and 45.53 are switched to switch between hold and call. call waiting is performed (step 413).

If the telephone 109 receives a call on the A channel, the telephone 109 detects that the call is busy and automatically calls the B channel.

Also, when calling from telephone l11101 to telephone 105, which is the third person, as shown in FIG. 3(C), the procedure can be exactly the same as in the example of FIG. 3(a). Furthermore, when a call is received from the telephone 109 to the telephone 101 as shown in FIG. 3(d), the same procedure as shown in FIG. 3(b) can be followed.

Therefore, the telephone according to this embodiment can make a call to an FFLA party or accept a call from a third party, regardless of whether it is the calling party or the called party, and can perform a three-party conference call.

Furthermore, this embodiment is very convenient because the operator can look at the telephone number of the other party and decide whether to make a three-way conference call or make a call-waiting call, or ignore the telephone number if necessary.

Further, in this embodiment, by keeping the switch circuits 51 and 53 closed, it is also possible to use the telephone as a forwarding telephone.

Note that the present invention is not limited to the above embodiments. In this embodiment, when a call arrives on a busy channel, the calling party's telephone automatically re-calls another unused channel, but it is also possible to switch automatically on the exchange side. In the following, the communication channel is shown for each telephone with a 2-channel communication channel, but multiple lines of 3-channel or more may be used, and each telephone is used for a three-way conference and a conference call is performed at a communication speed of 4 Å or higher. Also good. Further, in this embodiment, the call is put on hold once before starting the call between three parties, but it may be possible to put the call on hold without putting it on hold.

Further, in this embodiment, a telephone call has been described, but data communication may also be concerned.

In addition, the control procedure, configuration, instruction input means, display means, etc. can be implemented in various ways without departing from the gist of the present invention.

〔Effect of the invention〕

As described in detail above, according to the present invention, it is possible to make a call to a third party and respond to an incoming call from a third party while continuing the conversation, regardless of whether it is the called party or the calling party. Therefore, since a call can be made from the called party's telephone to a third party, the burden of charges on the calling party during a three-party conference call can be shared with the called party. Furthermore, when telephones with two or more information communication channels become widespread in the future, two channels can be used simultaneously, allowing effective use of communication lines.

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a block diagram of the configuration of a telephone according to an embodiment of the present invention, Fig. 2 is a functional block diagram of the control section 61, and Fig. 3 shows how to connect the present embodiment. 4 is a flowchart showing the operation of this embodiment, and FIGS. 5 to 7 show the display section 57.
FIG. 8 is a diagram showing a telephone connection system. 13... A channel, 15... A channel transmitting/receiving section, 25... B channel, 27... B channel transmitting/receiving section, 39.41, 45.47, 51.53... Switch circuit, 57 ...Display section, 59... Instruction input section, 6
1...Control unit Fig. 1 Fig. 5 Fig. 6 Fig. 7 Fig. 8

Claims (1)

[Claims] Means for connecting a plurality of telephones to an exchange through a plurality of lines or channels, and connecting to another party via another line or channel during a call via one line or channel. A telephone connection method characterized by providing.