JPS6245258A - Dial signal transmission system - Google Patents

Abstract

PURPOSE:To attain the outgoing on a trunk line with same dialing by sending a dial signal string added before a conventional signal string when an external line via other telephone set is acquired and outgoing is made by using an abbreviated dial number. CONSTITUTION:In operating a dial key to make external line outgoing from a telephone set TEL, a dial data is sent from a control circuit CTL, a CPU reads the dial data via a data transmission/reception circuit DTR1 and judges whether or not the dial data corresponds to the abbreviated number. When the number is the abbreviated number, whether an external line selected from the TEL is an external line accommodated directly to a telephone set (e.g., key telephone set) or accommodated via other telephone set (e.g., private branch of exchange) is judged. In case of the latter, an external line outgoing number, e.g., '0' in the other telephone set is added before the dial signal string translated from the abbreviation number and the result is sent.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method for transmitting dialing signals in a telephone device such as a button telephone device, and particularly relates to a method for transmitting a dialing signal in a telephone device such as a button telephone device, and in particular, a method for transmitting dialing signals between a direct external line and an external line via another switching device. This invention relates to a system for transmitting a dial signal from a telephone device in which a number of telephones are mixedly accommodated when making an outside call using an abbreviated number.

[Conventional technology]

For example, when a button telephone device accommodates external lines such as a central office line or private line (hereinafter referred to as a central office line), a direct central office line and another telephone system, such as a private branch exchange, can be accommodated. In some cases, it may be mixed with a central office line.

A relay system diagram (block diagram) of such a system is shown in FIG. □In Figure 3, C0-A is a direct line to the central office, and is connected to the button telephone device K.
It is directly connected to the external trunk COT, A, of the TS, and Co-B1. The CO/bird is a central office line (hereinafter referred to as a non-direct central office line) housed in the private branch exchange PBX and can be selectively acquired from the key telephone device KTS, and is connected to the private branch exchange P.
It is connected to the central office line trunks C0T-B, , C0T-B, of the BX.

In addition, the button telephone device KTS and the private branch exchange device PBX are connected to the outside line trunk COT@A of the button telephone device KTS, and the switch networks SNW and B of the private branch exchange device PBX.
are mutually coupled by being connected to the extension side of.

The button telephone (hereinafter referred to as the telephone) is equipped with a line selection button corresponding to the line, and by operating the outside line selection button corresponding to the outside line trunk COT, A, or COT・A, you can make a call. The rear terminal is connected to the outside line trunk C0T-A or C0T-A via the switch network SNW, A of the button telephone device KTS, thereby making it possible to make a call to the central office line.

In the above central office line call, the telephone postfix is outside line trunk C0T.
-A, it means that the direct office line C0eA has been captured, so all you have to do is dial the telephone number of the destination. However, the telephone postfix is the external trunk COT, A.
, when making a call to the central office line by selecting , the private branch exchange P
Since the call is from BX, the vacant office line trunk C0
The central office line calling identification number (usually #0# dialing) for selectively acquiring T-B or C0T-B must be dialed before dialing the destination telephone number.

[Problems to be Solved by the Invention] According to the above-mentioned prior art, when making a call to a central office line using a telephone backend, there are cases in which an outside line trunk C0T-A corresponding to a direct central office line Co-A is selected, and a non-direct central office Line CO・B, or CO・B,
The dial operation is different from when the corresponding outside line trunk COT fist A2 is selected.

In other words, there are times when the 0# dial, which is the central office line calling identification number in the private branch exchange PBX, is required (for non-direct central office lines) and other times when it is not required (for direct central office lines). When making a call to a central office line, the type of external line trunk selected must always be determined.Also, the central office line display at the back of the telephone should be clearly separated and displayed for the above-mentioned central office line display. There must be.

The present invention is proposed to solve the above problems.
It is an object of the present invention to obtain a dialing signal transmission system that allows a central office line call to be made by the same dialing operation regardless of the type of central office line. , type of central office line (direct central office line,
The distinction between non-direct central office lines) is stored in advance for each outside line trunk, for example, in a trunk memory, and when a central office line call is made, the type of selected and captured outside line trunk is identified by referring to trunk memo 1) above. However, if the external line trunk is one that supports non-direct central office lines (accommodated in the extension of the private branch exchange), the key telephone device must be able to enter the central office line calling identification number (0") in the private branch exchange. This system adds a dial number before the operated dial number and sends it out.By doing this, the stain removal machine can call the other party regardless of whether it is a direct line or a non-direct line. Simply dialing the telephone number is sufficient, and depending on the type of outside line captured (external line directly connected to the central office line or external line accommodated in a private branch exchange, 75 islands, 8+3), you can perform 10" dialing or dialing. You will be freed from the hassle of doing things.

In addition, as a means for identifying whether an outside line call from a key telephone device is an extension call to a private branch exchange device or a central office line call, the present invention uses whether or not the operated dial number is an abbreviated number (usually an abbreviated dial number). The service is provided only for local line calls.) information is used. Therefore, the present invention is limited to making calls to central office lines using abbreviated dialing.

[Configuration of Example]

FIG. 1 is a block diagram showing an embodiment in which the present invention is implemented in a button telephone device.
m m, PBXill internal exchange! Co equipment.

CO, ~ is a central office line.

The main device ME includes a switch network SNW that provides an exchange connection between a telephone back station and an outside line (central office line CO1 or extension line IO of a private branch exchange PBX), and an outside line trunk COT that is an interface for the outside line.

COT heavy ~, outside line trunk C0T1. COT, a sender SDR that sends a dial signal to the central office line CO1 or the circular line IO of the private branch exchange PBX via ~, a data transmitter/receiver that is provided for telephone post-installation and that transmits and receives control data to and from the relevant telephone device. Circuits DTR, , DTR, ~, storage area for data that translates abbreviated numbers into regular dial numbers, trunk data, regarding the parts related to the present invention, external line trunks COT, , C0Tt ~ are directly connected to Hj line example tbacOtK Random access memory IJRAM, which has a storage area (trunk memory) for information on whether it is connected to the extension IO of the private branch exchange device PBX, etc., and a central processing unit that collectively controls the main device ME according to a predetermined program. CPU.

It consists of a read-only memory ROM etc. that stores processing programs etc. of the central processing unit CPU, and the control systems of these parts are connected to the central processing unit CPU by a bus.

The telephone rear end includes a telephone receiver, a telephone communication circuit NW including a sidetone prevention circuit, a balance circuit, etc., a transmission circuit for dialing information and various key data, a data transmission/reception circuit for transmitting and receiving control data with the main device ME, and a telephone set. It consists of a control circuit CTL, etc. including a central processing unit and various memories, etc., for performing overall control at once.

The switch network SNW of the main device ME includes a communication circuit NW installed after each telephone, and a data transmission/reception circuit D of the main device ME.
TR, DTR, -1c are each connected to the control circuit CTL of each telephone rear end, so that each telephone rear end is accommodated in the main device ME.

Furthermore, in the embodiment, the external lines accommodated in the button telephone device KTS and the private branch exchange device PBXK are both central office lines, but these external lines may be dedicated lines, for example, and are generally connected to the button telephone device KTS or the private branch exchange device PBX. The present invention can be implemented for lines going out from the network.

[Effect of the embodiment]

FIG. 2 is a 70-chart showing the control of an embodiment of the present invention.

When making a call to an outside line from the telephone backend, lift the handset and press the outside line selection button first. As a result, external line □ selection data is sent from the control circuit CTL of the Simi talking device.
In the main device ME, the central processing unit 11CPU reads the external line selection data through the data transmitting/receiving circuit DTR, and selects and captures the corresponding external line trunk COT or COT.

Here, the operator of the telephone backend operates the dial button to make an outside call. As a result, dial data is sent from the control circuit CTL, and the central processing unit C of the main device ME
The PU reads the dial data via the data transmitting/receiving circuit DTR1 and determines whether the dial data corresponds to an abbreviated number. The above judgment can be easily made because the first digit of the abbreviated number usually consists of data corresponding to the function button on the dial. In the present invention, the abbreviated number is set to K so that it can be set only for calling from a central office line.

When it is determined that the dial data is not compatible with the abbreviated number, that is, when the direct dialing line C01 (external line trunk COT is captured), a central office line call is made by normal dialing, a non-direct central office line CO, (When the external line trunk COT is captured), a central office line call is made by normal dialing (in this case, the private branch exchange PB
When making a call to the extension number of the private branch exchange PBX, the central processing unit CPU of the main device ME sends the sender S
The DR is activated and the dial signal corresponding to the received dial data is sent to the central office line C0 via the outside line trunk C0T1.
1 or to the extension IO of the private branch exchange PBX via the external line trunk COT, and the dial signal sending control is completed.

In addition, when it is determined that the dial data corresponds to an abbreviated number in the above judgment, the central processing unit CPU further determines whether the outside line picked up by the telephone device is a direct line or a non-direct line. K decides to refer to the trunk memory section of the memory RAM. When this judgment determines that it is a direct central office line, that is, when the external line trunk COT to which the central office line CO8 is directly connected is selected and captured, the memory RAM
Dial information compatible with dial data (abbreviated number) from
(translated from the abbreviated number to the original dialing information), activates the sender SDR, sends a dialing signal string corresponding to the dialing information to the office line C01 via the external trunk COT, and controls the dialing signal transmission. finish.

In addition, when the above judgment determines that the line is a non-direct line, that is,
When K selects and captures the external line trunk COT to which the extension IO of the private branch exchange PBX is connected, the central processing unit CPU first activates the sender SDR and transfers it to the private branch exchange PBX.
The central office line outgoing dial signal “O#” at X is sent to the above extension IO
, and leave a timing of 3 seconds. During this timing, the private branch exchange PBX received a dial signal''
Office line origination connection control is performed based on O#, and extension line IO and office line CO1 are connected. As a result, the outside line trunk COT is connected to the central office line CO, Ic.

When the above timing ends, the translated dialing signal string corresponding to the abbreviated number is sent from the sender SDR to the central office line CO3 via the external trunk COT and the private branch exchange PBX in the same way as in the case of the direct central office line, and dial End signal sending control.

Incidentally, the registration of the abbreviated number itself in the key telephone device KTS is performed by conventional operations and controls.

〔Effect of the invention〕

As described above in detail, the present invention allows the outside line selected from the telephone to be transferred to the telephone device (
For example, the outside line is directly accommodated in the telephone (for example, a button telephone device), or the outside line is accommodated via another telephone device (for example, the private branch exchange 1). This system adds an identification number (for example, #0#) for outgoing calls on a telephone device to the front of the dialing signal string translated from the abbreviated number and sends it out. Those who wish to make an outside line are not limited by the type of outside line, and only need to dial in the same format (dialing only abbreviated numbers), which simplifies the operation of making an outside line and eliminates the possibility of making incorrect dials. The present invention has extremely significant effects.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a flowchart showing its operation, and FIG. 3 is a block diagram showing a relay system of a system in which the present invention is implemented. [Main symbols] KTS...Key telephone device PBX...Private branch exchange co, , col...Central line ME...Main equipment...Telephone COT,, COT,...External line trunk SDR... ...Sender RAM...Memory CPU...Central processing unit.

Claims (1)

[Claims] A telephone device that accommodates both a direct outside line and an outside line via another telephone device, which converts the speed dial number from the telephone into a normal dialing signal string to connect the direct outside line or the other telephone device. In a system that sends out to an outside line through the other telephone device, when the telephone captures the outside line through the other telephone device and makes an outside line call using the speed dial number, the outside line origination identification in the other telephone device A dialing signal transmission system that sends out a dialing signal string in which a dialing signal for use is added to the front of the above-mentioned normal dialing signal string.