JPS6224794A - Key telephone system - Google Patents

Abstract

PURPOSE:To allow the operator to apply queuing registration by its judgment by discriminating whether or not an external line of specific kind is accommodated based on the storage content of a memory, setting the standby state when accommodated to apply queuing registration and applying queuing registration when not accommodated on the condition of all external line busy. CONSTITUTION:When a busy external line becomes idle, after the DC loop of the external line is opened, a call is given to a key telephone set ST after queuing registration and in applying calling before timer is over, the idle external line is acquired. Thus, a data representing the kind of external lines 21-2n is stored in a RAM 25 in advance by the registration from the, e.g., ST1, when the external line of a specific kind is accommodated, the queuing registration is not executed automatically, the standby state is obtained, the registration is allowed to the operator's judgment and the acquisition of the external line of specific kind not desired for operation at calling for the purpose of operation is avoided freely. This system is very convenient in the operation.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a button telephone device that can accommodate a plurality of outside lines of different line types.

[Conventional technology]

Key telephone devices that accommodate multiple outside lines have a function that automatically selects and captures a vacant line from among the outside lines when a call is made to the outside line using the dial keys on the button telephone. A queuing registration function has been developed in which an outside line reservation is registered when an outside line is busy, and when one of the outside lines becomes vacant, a call is made to the registered key telephone. Details are disclosed in Japanese Patent Application No. Sho 59-i27326 filed separately.

[Problem that the invention seeks to solve]

However, if the accommodated outside lines are not from the same telephone company, but include lines from different telephone companies, both telephone companies may have operational issues due to differences in call charges, number of digits dialed, line characteristics, etc. Depending on the purpose of the call, it may be desirable to avoid using the line from one of the telephone companies when making a call, and in the past, queuing registration was done indiscriminately, which caused undesirable operational problems. .

[Failure to solve the problem]

In order to solve the above-mentioned problem, the present invention is constructed by the following means.

In other words, in a button telephone device that accommodates a plurality of outside lines in the main device and performs queuing registration for a busy line among the outside lines in response to a specific key operation on the button telephone, a memory that stores the line type of each outside line. and means for determining whether or not a specific type of outside line is accommodated based on the contents stored in the memory in response to the operation of a specific key; A control means is provided which performs queuing registration in response to key operations, and performs queuing registration on the assumption that all external lines are busy when it is determined that the system is not accommodated.

[Effect]

Therefore, when a specific type of outside line is accommodated, queuing registration is not performed immediately and the line is temporarily placed on standby, so queuing registration is left to the operator's discretion.

〔Example〕

Below) details of the present invention will be explained with reference to figures showing examples.

FIG. 1 is a block diagram of a main unit (hereinafter referred to as KSU) 1, in which an external line 2 such as a central office line or a telephone line from a private branch exchange.
~2n are housed, and these include relay contacts di-1, da-1, transformer LT,
and relay contact da-1", a communication path switch (
Hereinafter, the external link Lc to Lcn and the extension link Lit are connected to the button telephone (hereinafter referred to as 5T) via the cross point and transformer Tt+-Ttm. ) One pair of communication lines each from STI to STm3. ~3m, and each ST, ~STm is connected to each pair of signal lines 4I~4m via a transformer Ta+xTsm,
It is connected to a data transmitting/receiving circuit (hereinafter referred to as DSR) 12.

Further, for the outside lines 2I to 2n, an incoming call detection circuit (hereinafter referred to as RDT) 13 is bridge-connected via a capacitor C resistor R3 and a contact ds-1', thereby detecting the arrival of a paging signal. It is shown that the contact point di-1,
Relay with ds-1', da-1'' DI-1, D
A drive circuit (hereinafter referred to as DRV) 14 is provided for S-1, and each relay DI-1 corresponding to the external lines 2I to 2n
-DI-n, DS-1 to DS-n individually, and a communication path switch control circuit (hereinafter referred to as TRC) 15 is provided for TR811, thereby controlling each link LcI-n and DS-1 to DS-n individually. ~LenXLl+XL
It controls each crosspoint of lt and performs exchange connections.

Note that an MF signal generation circuit (hereinafter referred to as MF) is used for outside lines that use a composite voice frequency (hereinafter referred to as MF) signal as a dial signal.
) 16 is provided, the output of which is sent to the required outside line via a crosspoint in TR811 that responds to the control of TRCl3.

On the other hand, the main processor (hereinafter referred to as CPUm) constituting each means
) 21, and a sub-processor (hereinafter referred to as CPUa) 22
The CPUm22 controls the DSR12 to transmit and receive data signals with each ST, and stores the received operation data of each ST in a variable memory (hereinafter referred to as
RAM) 23, and the CPU m21 stores it in 9R.
The control data for each ST stored in the AM 23 is read out and transmitted to each ST.

RA, CPUm 21, and CPU522 are each RA
It is equipped with an internal memory similar to the M23 and fixed memory (hereinafter referred to as ROM) 24, and performs data processing by executing the program stored in these. Control is performed while accessing data to the internal memory and RAM 25.

Note that the ROM24 stores programs and data other than those stored in the internal memory of the CPUm21, which also regulates the operation of the CPUm2j, and the RAM25 stores data indicating various conditions. is registered and stored in advance.

Therefore, CP[Jrn21 determines D according to the detection power of RDT13 and the operation data based on the operation of each ST.
The exchange connection is performed by controlling RV14, MFG16O and TR811 via TRCl3, and the CP
Control data is sequentially and repeatedly transmitted to each ST via the O522 and DR812, and each ST's indicator light, indicator, and sound display, as well as communication control, are performed.

Furthermore, by driving the relays DI-1 to DI-n via the DRV 14, the DC loop for the outside lines 2I to 2n is closed by the primary windings of the transformers LT and -LTnO, and the outside line is captured or held, and the pulse dial is activated. After acquiring the outside line, a dial pulse is sent to the line, and in this case, relays DS-1 to DS-I
I is also driven at the same time, and contacts dl
-1' to dl-n' are connected in parallel for spark suppression, while contacts d and sl to da-n' are connected in parallel to Resistor R
Connect external links Lc1-Lcn to the side where 11 to R1n and parallel resistors R□ to R□ are inserted to prevent the click sound accompanying dial pulse transmission from being given as a high level to each ST. are doing.

In addition, TR
For example, a power supply vl of +5V is applied to the analog switch of 811, and a power supply V of +27V, for example, is applied to the neutral point of the secondary windings of transformers Tt+ to Ttm. The neutral point of the secondary winding of ~Tllfm is connected to the power return path, which allows each ST
Phantom power is being supplied to the

In addition, KSol uses a commercial power source as its main power source, and in order to prevent the contents of the RAM 23.25 from disappearing in the event of a power outage, the battery 26 provides backup in the event of a power outage and retains the contents of the RAM 23.25. It is assumed that

FIG. 2 is a block diagram of ST5, in which transformers T, , T, are connected to the communication line 3 and signal line 4, and a communication circuit (hereinafter referred to as TKO') equipped with an amplifier via the transformer T1.
) 31 is connected to a speaker 32 and a handset 33, while a transformer T.

A transmitting circuit (hereinafter referred to as 5C) 34 and a receiving circuit (hereinafter referred to as RC) 35 are connected via the 5C34 ugly CPU 52.
2 is controlled by a similar processor (hereinafter referred to as cpot) 36, and the reception output of RC35 is controlled by the CPU.
522, CPUt36 outputs TKC3 according to the received output corresponding to the control data from KSU1.
1. Controls a tone generator (hereinafter referred to as TSG) 37° and a display circuit (hereinafter referred to as DP) 3B with multiple indicator lights and character display units (hereinafter referred to as DGP), and controls a keyboard (hereinafter referred to as KB) 39 and According to the operation output of the hook switch H8, the 5C34 is controlled to transmit operation data.

In addition, a power supply circuit 40 is connected between the neutral points of the transformers TI and TI on the line side, and this stabilizes the power supplied from KSU1 via each line 3 and 4, which is necessary as a local power supply E. It is supplied to various departments.

A monitoring circuit (hereinafter referred to as WD) 41 is provided, which detects a runaway of the CPU t 36, a voltage drop in the local power supply E, a start-up failure, etc.
36 and initialize it.

In addition, the received output of the RC35 is given to the interrupt I-NT of the CPUt36, and is treated as valid only when the CPUt36 cancels the prohibition of accepting interrupt inputs. Control data is received and operation data is transmitted in response to the polling signal received by the controller.

Therefore, if off-hook and outside line key operation in KB39 is performed in any ST, this operation data is transmitted to 5C34, and this is transmitted to DSR1 of KSU1.
In response to this, the CPU m21 controls the DRV14 to turn on the contact d1 to acquire the outside line, and also controls TR (j5 to connect the external line link CL to the external line link CL). In order to connect ST, if you then operate the dial key in KB39, CPUm21 will respond in the same way as described above, and the outside line 21 will be connected.
Depending on the type of exchange to which ~2n is connected, if the dial signal is a pulse signal, it controls DRV14 to operate contact d3, and then sends out a dial pulse to turn contact d1 off and on, and dials. If the signal is an MF multiplied signal, the TRCl3 and MFG16 are controlled to send out a dial signal based on the MF multiplied signal, thereby making a dial call. You can freely make calls using .

Also, outside line 2. ~If you receive a call from 2n, RDT13
In response to the detection power of is sent to each ST via the CPU t via the RC35.
36, the CPU 522 sends TKC31, TS
It controls the G3γ and the DP 38, blinks the outside line indicator light in the DP 38, and sends out an outside line ring tone from the speaker 32, thereby notifying the arrival of an outside line call.

Therefore, if any ST responds in the same way as when making the above call, the CPUm21 will respond to the TRC according to this operation data.
By controlling 13 and turning on the corresponding cross point in TR811, answering calls can be made freely.

If the hold key or extension key in KB39 is operated during a call to an outside line, the CPUm21 controls TRCl3, turns off the cross point, disconnects the ST in the call, and turns off the DC loop for the outside line. Closed now＼
Therefore, it will be put on hold.

Also, if you operate the extension key for transfer, the CPU
rn21 enters the two-digit extension number K in order to connect the currently calling ST to an empty extension link Lit, Llt.
If you make a call using the dial key on the B39, the other party's T
The SG 37 sends an extension ring tone and drives the speaker 32, and the extension indicator light in the DP 38 flashes, and if the other party responds, the extension call can be made freely.
As a result, the transfer is taken over.

In addition, if the user goes off-hook and then presses the extension key and dials the extension number, the same exchange connection as described above is established and a normal extension call is made.

FIG. 3 is a flowchart of the steady processing by the CPU 522 of KSU1. After performing 1 initialization 101, 1 received data processing 111 for each ST, and 1 processing in response to incoming calls from outside lines 21 to 2n. External call incoming processing 112 is performed, timeout processing 121 due to time-up of each timer configured in CPUm21, and hold alarm processing 122 are performed, and then steps 111 and subsequent steps are repeated.

FIG. 4 is a flowchart of interrupt processing by CPUrn21, for example, 5m51! This is repeated at the cycle of e, and first, the 'dial pulse sending process' 201 is performed, and then the 1st outside line incoming call detection process 202 is performed using the detection power of the RDT 13, and then the 1st extension timer is activated. After performing the process I211 and the 1 hold alarm timer process 212, and storing the control data in the RAM 23 using the 1 transmission data set 221 for each ST, ~STm, a command is given to the CPU 522, 'Data transmission/reception with ST 222 is performed for each ST to STm.

FIG. 5 is a flowchart of the steady processing by the CPUt36 on the ST5 side. 9. Initialization by the WD41 301 is performed, and the interrupt input given the received data signal DI is programmed by the 'INT prohibition release' 302. ,
Release the data import prohibition state and use the interrupt processing.
Finished receiving? “If 311 is Y (YES), perform 1 received data processing〃312, and ask ``Is there an operation input?'' 321
After the transmission data for the transmission data signal Ds is created (322) in accordance with Y of , the timer in the CPU 522 determines, for example, a period 't of 80 m5ec, elapsed? ``331'' is determined, and as the result becomes Y, ``INT prohibition release'' 332 is performed again, and steps 311 and subsequent steps are repeated.

FIG. 6 is a flowchart of the interrupt processing by the CPUt36, and is a data transmission/reception process with Q, 9, and KSUl (411).
Exchanging data with the SC34 and RC35, 1
The outputs of the hook switches H8 and KB39 are checked by the operation detection process '412, a tone signal is sent by the 1 tone transmission control 421 according to the contents of the memory, and the 9DP3 is transmitted by the same 1 indicator light control 422.
The indicator light in DP3B is turned on, blinks, or goes out, and the display status by the DGP in DP3B is determined by the same electric display control 423.

FIG. 7 is a flowchart showing the details of step 111. 'If 501 is Y,
Is this content the 1st operation of the dial key? 502 is judged, and if N, the process moves to 1 other operation data processing 503, but if Y, based on the status data in the RAM 25, 1 is the ST/idle? 〃511 is checked, and dialing processing 1512 is performed depending on N of this, but when step 511 is Y, it is stored in the RAM 25 and stored in each line type data of outside lines 2 and 2n. 1 Line type check 521 is performed based on 1 specific type line? 1 All line check completed? Accordingly, 1 outside line acquisition standby state setting ``524'' is performed.

Further, if step 523 becomes Y while step 522 is N, a free line check 531 for external lines 2, to 2n is performed based on the status data in the RAM 25, and is any q% free line? '1 All lines checked through 532 N? ``While 533 is N, step 532 and subsequent steps are repeated, and in response to Y in step 532, 1 outside line automatic capture'' 534 is performed, and if step 533 is Y while step 532 is N, 1 queuing registration'' 535 is performed. After that, process the received data from the primary ST' 5
41.

Note that queuing registration is a reservation registration when all outside lines are busy, and is a function that calls the reserved ST when an open outside line occurs.

Therefore, outside line 2. If a specific type of line is accommodated in ~2n, automatic acquisition is prohibited in step 524, and manual acquisition is left to the operator's discretion through queuing registration or external line selection operation. If the line is not accommodated, automatic acquisition of the outgoing line is permitted by step 534.

FIG. 8 is a flowchart similar to FIG. 7 when the outside line selection is performed using the dial key of ST5 after the state of step 524 is set. Is there 1 received data? “According to Y of 601, the contents of this are dial key 11
~6 operations? #602 is judged, and if this is N, 1 other operation data processing〃603 is performed, whereas step 6
If 02 is Y, 1 is the ST/external line standby? "611" is determined based on the data in the RAM 25 corresponding to step 524, and when this is N, 1 other dial processing "61
2, but if step 611 is Y, the 1 designated outside line corresponding to 11 to 6" in step 602 is an empty line?#
621 is determined based on the status data in the RAM 25, and if this is Y, 1 external line automatic acquisition' 622 is performed, and in response to step 621 ON, the above-mentioned 1 queuing registration 623 is performed, and then from the 1st ST The process moves to received data processing l631.

Therefore, if you select an outside line using the dial keys after the outside line acquisition standby state is set, acquisition will be performed assuming that the outside line is empty, but if the outside line is busy, the above-mentioned queuing will occur. Registration takes place.

FIG. 9 is a flowchart similar to FIG. 7 when on-hook is performed in any ST. ” When 701 becomes Y, the content of this becomes 1.
Onfutsuk? '702, and if the result is N, 1 other operation data processing 1703 is performed, but step 7
In response to Y in 02, based on the status data in RAM 25, 1 is the ST/external call in progress? Check out '711,
When this is N, the 1-other call termination process "712" is performed, whereas, depending on Y in step 711, the 1-external line release process #T13 is performed by turning off the contact d1.

Next, is there a 1Q registration ST? '721
is judged based on the data in the RAM 25 corresponding to steps 535 and 623, and if the result is Y, a queuing call is made to the 1st registered sickle ST.Through T22, a tone signal indicating that an over-the-air line has occurred is sent to the speaker of the ST concerned. 32, and the registration is invalidated if the relevant ST does not perform the calling operation within a certain period of time, the 1-timer star (1 timer star) configured in the CPUm 21)' 723 is performed, and then the primary ST
Processing of received data from '731.

Therefore, if the outside line in use becomes an idle line, the DC loop of the outside line is opened in step 713, and then the ST registered for queuing is called in step T22, and the timer in step 723 times up. If you have previously made a call, you can acquire an open line.

For this reason, outside line 2. If data indicating the type of ~2n is stored in advance in the RAM 25, for example, by a registration operation from STl, when an outside line of a specific type is accommodated, queuing registration for this will not be automatically performed. Although this is left to the discretion of the operator, it is possible to avoid capture of a specific type of external line that is not desired to be used when making a call.

Then, in FIG. 7, in response to Y in step 522,
After checking the presence or absence of an idle line among the specific type lines, the process may proceed to step 524 on the assumption that there is an idle line. The same effect can be obtained even if the judgment of l is substituted.

In addition, the method of automatically selecting an aerial line is arbitrary, and
In some cases, automatic selection may be omitted; when queuing registration is performed using dial keys, when another specific type of line becomes vacant, registration is changed to the relevant external line, and queuing is performed accordingly. It is also possible to make a call.

In addition, the RAM 25 stores specific types of outside lines.
In addition, a switch or the like may be used, and it is also possible to memorize only the presence or absence of a specific type of outside line instead of storing it for each outside line. Alternatively, it is also possible to further classify the specific type of external line into a plurality of categories and deal with each category separately.

Note that the configurations in FIGS. 1 and 2 can be selected arbitrarily, and in FIGS. 3 to 9, according to conditions,
Various modifications are possible, such as replacing steps or replacing them with equivalent ones, or omitting unnecessary tables.

〔Effect of the invention〕

As is clear from the above explanation, according to the present invention, if a specific type of outside line that you do not want to capture when making a call is accommodated, queuing registration for this is not automatically performed.
Since it follows the operator's judgment, it is very convenient in operation and has a remarkable effect on various key telephone devices.

[Brief explanation of drawings]

The figures show an embodiment of the present invention, and Fig. 1 is a block diagram of KSU, and Fig. 2! 1isT block diagram, FIGS. 3 and 4 are flowcharts of the control situation by the KSU CPUm, FIGS. 5 and 6 are flowcharts of the control situation by the tisT CPUt, and FIGS. It is a flowchart showing details. 1...KSU (main unit), 2. ~2n...
Outside line, 3.31-3m 11 e * *Telephone line, 4.
4゜~4m...Signal line, 5...ST (key telephone), 11...TR8 (call path switch), 1
2---@DR9 (data transmitting/receiving circuit), 13...
RDT (incoming call detection circuit), 14...DRY (
drive circuit), 21 a @ 11 CPUm (main processor), 22...11 CPU3 (sub processor)
, 23.25...RAM (variable memory), 24...
Fist-ROM (fixed memory), 31...TKO (talk circuit), 32...Speaker, 34...SC (transmission circuit), 35...RC (reception circuit), 36...・・・
-CPU t (processor), 3T...e@TSG(
tone generator), 38...DP (display circuit), 39
・・・-KB (keyboard), DI-1 to DI-n X
DS-1 ~ DS-n @@轡・Relay, LT l
, T t+ ~ T tm −, 'rll ~ T IH
lTI, T*・Fist・Transformer, H8---・Hook switch. Patent applicant Tamura Electric Manufacturing Co., Ltd. Agent
Masaki Yamakawa (and 2 others) Figure 3 Figure 4 Figure 5 Figure 6 Figure 8 Figure 9

Claims (1)

[Claims] In a button telephone device in which a main device accommodates a plurality of outside lines and performs queuing registration for a busy line among the outside lines in response to a specific key operation of the button telephone, the memory stores the line type of each outside line; means for determining whether or not a specific type of outside line is accommodated based on the stored contents of the memory in response to an operation of a specific key; and a means for setting a standby state when the means determines that an outside line is accommodated, and control means for performing the queuing registration in response to an operation of the key telephone, and performing the queuing registration on the premise that all external lines are busy when it is determined that the telephone is not accommodated.