JPH01196997A - Pushbutton signal sending system in private branch exchange - Google Patents

Abstract

PURPOSE:To attain the transmission of a pushbutton signal with a proper consecutive time for dialing from a terminal equipment and at end-to-end signaling by revising the consecutive time of the pushbutton signal sent from a tone generating circuit to the line based on the designation from the input means. CONSTITUTION:A tone generation circuit 6 generates a dial tone signal and a pushbutton signal and a central control circuit 7 controls a private branch exchange. Then either of a selection signal sending from terminal sets 1-1-1-n and end-to-end signaling is designated by the input means, then the consecutive time of the pushbutton signal sent from the tone generating circuit 6 to the lines 4-1-4-n is revised. Thus, the pushbutton signal is sent for a proper consecutive time for both the dialing from the terminal sets 1-1-1-n and the end-to-end signaling.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a push button signal sending system in a private branch exchange.

(Prior Art) As is well known, some private branch exchanges are equipped with a tone generation circuit that generates a push button signal, and when a terminal connected to the private branch exchange presses a desired dial button, a tone signal is generated. In response, a tone generating circuit of the private branch exchange generates a pushbutton signal corresponding to the dial button, and this pushbutton signal is transmitted to the line.

For example, when a user presses a dial button corresponding to the dialed number of the called party on a terminal when making a call, in response, the tone generation circuit of the private branch exchange sends a push button signal indicating the dialed number to the line. . Furthermore, when a dial button is pressed on the terminal during a call, in response, a tone generating circuit of the private branch exchange sends a push button signal corresponding to the dial button to the line.

Here, the transmission and reception of push button signals between terminals of both terminals during a call is generally called end-to-end signaling, and this is used, for example, when transmitting and receiving data between terminals of both terminals.

However, in conventional private branch exchanges, the duration of the pushbutton signal sent from the tone generation circuit is fixed. For example, if the duration of the pushbutton signal is set appropriately assuming that the call is made from a terminal, This caused the inconvenience that this duration was not appropriate for an end-to-end signal.In this way, in conventional private branch exchanges, the duration of the push button signal sent from the tone generation circuit was fixed, so it was difficult to send the selection signal from the terminal. There was a problem in that it was not possible to send a push button signal to the line with a suitable duration both during time and end-to-end signaling.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a push-button signal sending method in a private branch exchange that is capable of sending push-button signals with an appropriate duration both when making a call from a terminal and during end-to-end signaling. shall be.

Equipped with a tone generation circuit that generates push button signals,
When a terminal transmits a selection signal and end-to-end signaling, the terminal transmits a push-button signal from the tone generation circuit to the line in response to the operation of the terminal. an input means for specifying which one of the tone generation circuits and the push button signal to be sent to the line from the tone generation circuit based on the specification from the input means; and a control means for changing the duration of the push button signal sent from the tone generation circuit to the line based on the specification from the input means. It is characterized by having the following.

(Operation) According to the present invention, when either the selection signal transmission from the terminal or the end-to-end signaling is specified in the input means, the push button signal is transmitted from the tone generation circuit to the line. The duration of is changed.

(Example) Hereinafter, an example will be described in detail with reference to the accompanying drawings. FIG. 1 is a block diagram showing a private branch exchange to which an embodiment of the push button signal sending system of the present invention is applied. This private branch exchange connects the multifunction telephones 1-1 to l-n to the multifunction telephone medical line cards 2-1 to 2-n, and
Connect the central office line interface cards 3-1 to 3-n to the central office line 4-1.
-=4-n, and the line cards 2-1 to 2-n and the office line interface cards 3-1 to 3-m are exchange-connected via the digital switch circuit 5. A tone generating circuit 6 generates dial tone signals and push button signals. A central control circuit 7 controls the private branch exchange.

Now, for example, if you turn on the hook switch by lifting the handset of the multifunction telephone 1M11-1 or pressing a predetermined button, the multifunction telephone 1M11-1
An outgoing signal is sent out.

This transmission signal is transmitted via the line card 2-1 and further via the input data highway 8 to the central control circuit 7. This causes the central control circuit 7 to control the multifunction telephone t11.
1-1 is determined, and when this determination is made, a dial tone signal generated by the tone generation circuit 6 is sent from the digital switch circuit 5 to the line card 2-1. This dial tone signal is transmitted to telephone 1-1 via line card 2-1, thereby causing telephone 1-1 to
You can hear the dial tone.

Thereafter, this private branch exchange operates according to the flowchart shown in FIG. First, a predetermined office line access code for making a call to the office line is input to the telephone 1-1. Here, if the central office line access code is, for example, "PA0", press the dial button of II O11 (step 101).
From 1, a dial signal indicating '0' is sent.

This dial signal indicating 0" is transmitted to the central control circuit 7 via the line card 2-1 and the input data highway 8. The central control circuit 7 receives the 0" from the telephone 1-1.
When the dial signal is input, it is determined that the telephone 1-1 will make a call to the central office (step 102). That is, in this step 102, it is determined that end-to-end signaling is not performed because the telephone 1i-i makes a call to the central office line.

Next, when the central control circuit 7 determines that the telephone 1-1 makes a call to the central office line, the central control circuit 7 transmits the central office line interface card 3
-1 to 3-m, select one that is vacant. Then, the central control circuit 7 connects, for example, the vacant interface card 3-1 and the line card 2-1 via the digital switch circuit 5, and thereby the telephone
-1 to the central office line 4-1. Furthermore, the central control circuit 7 reads out the duration time t1 of the push button signal at the time of making a central office line call from the storage area a shown in FIG. 3 of the memory installed in the central control circuit 7 (step 103).
). Note that the memory stores in advance the duration time t1 in the first byte as storage area a, and the duration time t2 of the push button signal during end-to-end signaling in the second byte as storage area b. is memorized in advance.

Here, when the dial number of the called party is input in sequence by pressing the dial button of telephone 1-1, telephone 1
11-1 sequentially sends out dial signals corresponding to the pressed dial buttons.

This dial signal is transmitted to the central control circuit 7 via the line card 2-1 and the input data highway 8. The central control circuit 7 sends a push button signal corresponding to this dial signal from the tone generating circuit 6 for the duration t1.
This push button signal is transmitted to the office line interface card 3-1 via the digital switch circuit 5. This push button signal is sent to the office line 4-1 via the office line interface card 3-1 (step 105). Therefore, each time a dial button is pressed to input the telephone number of the called party on the telephone m1-1, a push button signal corresponding to the pressed dial button is sent to the central office line 4-1 for only the duration t1. be done.

In this way, push button signals indicating the called party's telephone number are sequentially sent out to the central office line 4-1 and further transmitted to the public network 10.

Thereby, when the called party is called and the called party responds to the incoming call, a conversation can be made between the telephone 11-1 and the called party.

Now, during a telephone conversation between the telephone t11-1 and the called party, a predetermined access code for end-to-end signaling is input on the telephone 1-1. Here, if this access code is, for example, 1", the dial button of 111 Pl is pressed (step 101). As a result, the telephone 1-1 transmits 1".
A dial signal indicating this is sent out. This dial signal indicating ``1'' is transmitted to the central control circuit 7 via the line card 2-1 and the input data highway 8.The central control circuit 7 inputs the 1'' dial signal from the telephone 1-1. Then, it is determined that end-to-end signaling is performed by telephone 111-1 (step 102).
). When the central control circuit 7 makes this determination, the M! step 104) of reading out the duration t2.

Here, when a desired dial button on telephone 1-1 is pressed to perform end-to-end signaling, a call is made! 11-1 outputs a dial signal corresponding to the pressed dial button, and this dial signal is transmitted to the central control circuit 7 via the line card 2-1 and the input data highway 8. The central control circuit 7 causes the tone generating circuit 6 to send out a push button signal corresponding to this dial signal for the duration t2, and transmits this push button signal to the central office line interface card 3-1 via the digital switch circuit 5. let

This push button signal is sent to the central office line interface card 3.
-1 to the central office line 4-1 (step 105).
, and is further received by the called party through the public telephone network 10.

Therefore, when a dial button is pressed on the telephone 1-1, a push button signal corresponding to the pressed dial button is sent to the central office line 4-1 for a duration t2, and this push button signal is further received by the called side. be done. In this way, for example, data can be transmitted from the telephone set 1-1 to the called party.

In this way, a push button signal with a duration of t1 can be sent to the office line when making a call to the office line, and a push button signal with a duration of t2 during end-to-end signaling can be sent to the office line.

FIG. 4 is a flow chart of another embodiment of the push button sending system according to the present invention, and this embodiment is applied to the private branch exchange shown in FIG.

Here, in the same way as described above, for example, the hook switch of the multifunction telephone n1-1 is turned on, and the tone generating circuit 6 is turned on.
You can hear the dial tone from the telephone t11-1.

After that, when you press the dial button for the central office line access code "'0" (step 201), the telephone number 811-1
A dial signal indicating ``0'' is sent from .

When the central control circuit 7 inputs a dial signal indicating '0'', it determines that a central office line call is to be made by the telephone 1-1 (step 202), and determines the prescribed duration of the push button signal sent when making a central line call (step 202). Set t1.

Here, when the dial signals of the called side are sequentially input by pressing the dial buttons for each telephone 1-1, the dial signals corresponding to the pressed dial buttons are sequentially sent out from the telephone 1-1.

When the central control circuit 7 receives this dial signal, it causes the tone generating circuit 6 to send out a push button signal corresponding to the dial signal for the specified duration t1. Further, this push button signal is transmitted from the digital switch circuit 5 to the office line interface card 3-1 and sent out to the office line 4-1 (step 203). Therefore, each time the dial button is pressed to enter the telephone number of the called party on the telephone 1-1, the push button signal corresponding to the pressed dial number is transmitted to the central office line 4-1 for a specified duration t1. sent to. In this way, the telephone number of the called party is transmitted, the called party is thereby called, and when the called party answers the incoming call, a conversation can be made between the telephone set 1-1 and the called party.

Note that if the office line is a line that supports dial pulse signals, the central control circuit 7 is connected to the output side data highway 1.
1 to control the central office line interface card 3-1;
A dial pulse signal indicating the telephone number of the called party is sent to the central office line 4-1 from a dial pulse generating circuit installed in the interface card 3-1.

Now, when a call is being made between the telephone 1jll-1 and the called party, the dial button for the access code "1" for performing end-to-end signaling on the telephone 1-1 is pressed (step 201). , telephone tM 1 1
A dial signal is sent out indicating "1".

When the central control circuit 7 receives a dial signal indicating "1", it determines that end-to-end signaling is performed by the telephone [11-1] (step 202).

Here, when a desired dial button of the telephone l11-1 is pressed, a dial signal corresponding to this dial button is sent out. When the central control circuit 7 receives this dial signal, it causes the tone generating circuit 6 to send out a push button signal corresponding to the dial signal (step 204).
. At this time, the central control circuit 7, based on the end-to-end signaling determination made in step 202,
While the dial signal from the telephone 11-1 is being input, the tone generating circuit 6 continues to send out the push button signal (step 205). That is, while the dial button on the telephone unit 1-1 continues to be pressed, a push button signal corresponding to this dial button is outputted from the tone generating circuit 6. This push button signal is sent from the digital switch circuit 5 to the office line 4-1 via the office line interface circuit 3-1, and is roughly received by the called side.

In this way, a push button signal with a prescribed duration t1 can be sent out to the office line when making a call to the office line, and a push button signal can be sent out to the office line while the dial button is pressed during end-to-end signaling.

[Effects of the Invention] As explained above, according to the present invention, the present invention can be used appropriately both at the time of transmission from a terminal and at the time of end-to-end signaling. It is possible to provide a push-button signal sending method in a private branch exchange that is capable of sending a U-continued push-button signal.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a private branch exchange to which an embodiment of the push-button signal sending method according to the present invention is applied, FIG. 2 is a flowchart used to explain one embodiment of the present invention, and FIG. FIG. 4, which is a diagram showing a memory storage mode in one embodiment of the present invention, is a flowchart 1 used to explain another embodiment of the present invention. 1-1 to 1-n...Multi-function telephone, 2-1 to 2-n.
・・Line card for multi-function telephone, 3-1~3-m・・
- Office line interface card, 4-1 to 4-n... Office line, 5... Digital switch circuit, 6... What-on generation circuit, 7... Central control circuit, 8... Input side data highway, 9...output side data highway, 10.
...Public network, 11... Output side data highway.

Claims (1)

[Claims] (1) A premises that is equipped with a tone generation circuit that generates a push-button signal, and that transmits a push-button signal from the tone generation circuit to the line in response to the operation of the terminal when the terminal transmits a selection signal and performs end-to-end signaling. In sending a push button signal in an exchange, input means for specifying either selection signal sending or end-to-end signaling on the terminal side; 1. A push-button signal sending system in a private branch exchange, comprising: control means for changing the duration of a push-button signal sent to a line.