JPS59181795A - Key telephone device - Google Patents

Abstract

PURPOSE:To limit the number of holding trunks of a self-holding mode by a same key telephone by storing the holding mode of a holding trunk in corresponding to a key telephone which executed a holding operation, and also checking the holding mode of all holding trunks when the holding operation is executed. CONSTITUTION:In a telephone set STa or STb, when a catching operation of tunks CO1, CO2 by trunk buttons SWc1, SWc2 is executed, and a holding mode is selected by a holding button SWh, the holding mode of every holding trunk is stored in corresponding to the telephone set STa or STb which executed the holding operation. When the holding operation is further executed in the telephone set STa or STb, a deciding part JUD corresponding to a processor CPU checks the holding mode of all holding trunks in accordance with the contents of a memory MEM, and thereafter, is shifted to a regular holding mode if the holding trunk of a self-holding mode is available and on the other hand, executes the decision for setting the self-holding mode to the trunk CO1 or CO2 if no self-holding mode is available to control a connecting part CN, and to limit the number of holding trunks of the self-holding mode.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an improvement in a button telephone device comprising a main device accommodating a central office line from a telephone office and a plurality of button telephones connected to the main rear end. It is something.

[Prior art]

In general, when a key telephone device performs a hold operation on a central office line, there are two modes: a self-hold mode in which a response can only be made from the button telephone (hereinafter referred to as a telephone) that performs a hold operation on the holding station line; It is possible to freely select between a normal hold mode in which a response can be made from any telephone, and conventionally, the hold mode has been selected using individual hold buttons provided on the telephone.

However, in the past, when there were multiple central office lines, it was possible to set self-hold mode for all central office lines at the same time on the same telephone, and this did not create a request for other telephones to use the central office line. However, the disadvantage is that the central office line cannot be used unless the self-holding mode is released.

[Summary of the invention]

The present invention has an object of fundamentally eliminating such drawbacks of the conventional art, and provides a storage means for storing the hold mode of a holding station line in correspondence with a key telephone that performs a hold operation, and a key telephone that performs a hold operation. When there is a further hold operation, the hold mode of all holding station lines by the button telephone is checked according to the contents of the storage means, and if there is a holding station line in self-hold mode, the mode is changed to normal hold mode, while self-holding is performed. If there is no holding station line in the mode, the system is equipped with a means for determining whether the station line corresponding to the order of the hold operation is set to self-hold mode, and the number of holding station lines in self-hold mode by the same button telephone is limited. A highly effective key telephone device is provided.

〔Example〕

Hereinafter, the present invention will be explained in detail with reference to figures showing examples.

FIG. 1 is a block diagram of the main unit KSU, in which a plurality of office lines Cor"Cos are accommodated, and as shown in FIG. In addition, there is a contact di for dial pulse transmission.

It is connected to the matrix circuit for exchange connection via contact ds' for bypass, contact for sending hold tone, and contact ds2 for sending dial back tone, and when contact xp turns on, it is connected to the matrix circuit for loop current detection. The telephones sTl-ST, 16 are connected to the telephones sTl-ST, 16 via the relays Ll-L2 or directly by individual communication lines.

Further, an incoming call detection circuit RDT is connected between the disconnector Kt and the contact di, and detects a paging signal from the office line, and a DP sending circuit DPS is connected to the contact d.
i + ds" + ds2 and sends out dial pulses. For the contacts, a hold tone sending circuit HTS and a hold tone generating circuit HTG are provided. The held music sending circuit HTS sends the held music such as the melody that has been played to the central office line via the contact, and for the contact ds,
A dial back tone sending circuit DBS and a dial back tone generating circuit DBG are provided.
The dial-back tone sending circuit DBS sends out the dial-back tone generated frequently to the telephone ST which is in the calling state via the contact ds2.

On the other hand, a control unit CNTm consisting of a processor CPU such as a microprocessor and a memory MM is provided, and receives and receives the detection output of the incoming call detection circuit RDT, and also controls transmission control circuit SRC, transmission circuit SRK, and each individual telephone set ST+.
5T1a via the signal line connected to the telephone ST,
It simultaneously transmits and receives data signals with the -5TI6, receives and receives operation data from the telephones ST and -8T16, and makes control decisions based on these. The driver DR1 + telephone STs-811s that drives each relay xp corresponding to the contact xp is connected to the central office line co1 during a commercial power outage.
~Driver DR2r telephone S that drives relays F1 to F5 corresponding to contacts f+"f5 that are individually connected to COs
A tone generating circuit TSG that sends an extension dial tone, extension busy tone, waiting tone, extension ring tone, etc. to T, ~5T16.

It also controls the door phone control circuit DPC and sends control data to the telephone STl"5Tta.

Note that the memory MM consists of a fixed memory IJ ROM and a variable memory RAM, and the fixed memory ROM stores instructions, which are executed by the processor CPU and performs various judgments and controls. The memory RAM is divided into a plurality of areas, and each area stores the status of office lines CO1 to CO5 and telephones STI to STI5TI6.
and the status of extension links, which will be described below, are sequentially stored, and the processor CPU performs the above-mentioned judgment and control while checking the stored contents.

In addition, an extension link iTcM+ -iTCM3 is provided, and the circuit of transformers Tl to T3 capacitors C1 to C3 and power supply E supplies power for telephone calls during extension calls. DPC and transformer T! via extension link i
TcM, and by turning on the contact xp corresponding to the telephone ST that responded, a conversation with the telephone ST that responded is made.

Well, driver DR2 has contact 1 of relays L1 to L5.
Outputs 1 to 15 are given, and the telephones STl to s'
Even if a commercial power outage occurs while rs is talking to the office lines Co, ~CO5, the contacts If the relays L1 to L5 are operating due to the loop current from the lines Cot to CO5, then the corresponding relays F1 to F5 will not be restored immediately based on the outputs of contacts 11 to 1.0 when a power outage occurs. There is.

Note that the processor CPU is supplied with the output of the switch board 8WB, and the switches on the board SWB can be used to set restrictions on incoming and outgoing calls for the telephones ST, 5TI6, and the like.

FIG. 2 is a block diagram of the telephone ST, and the telephone line Lt
is connected to the communication circuit TKC via hook switch) TS, and when on-hook, hook switch H8'', capacitor C8, varistor VR, transformer T8
and the communication line L to the amplifier A via the switch circuit SW.
t is connected, the switch circuit SWr is turned on, and the amplifier A is in the operating state, the speaker SP will sound by various tone signals or audio signals sent from the communication line Lt. It has become.

Note that a series circuit consisting of a resistor Rs and a contact ac is connected in parallel to the input side of the capacitor Cs, and when the contact ae is turned on by the operation of the relay AC, the DC loop is closed while remaining on-hook. , it is possible to monitor when on-hook dialing, etc.

Further, an oscillation circuit OSC is provided which generates a central office line ring tone, an extension tone ring tone, an extension voice call notice tone, a hold alarm tone, a door phone ring tone, etc., and the output of this circuit is the switch circuit SW2.
is supplied to the amplifier A via the switch circuit SW.
2 is on and amplifier A is in operation,
The speaker SP is designed to sound in response to the various tone signals described above.

On the other hand, a control unit CNTs consisting of a processor such as a microprocessor, a memory, etc. is provided, and the transmission circuit SR8
and a keyboard KB having a pushbutton dial PBD and a function key FUK for transmitting and receiving data signals with the main device KSU via a signal line Ls, and
The information from the hook switch H82 is sent as operation data, and the oscillation circuit O is activated according to the received control data.
SC generation signal specification 1. Relay AC operation, switch circuit SW1 + so-called 20 on, off, amplifier A operation status,
, and controls the blinking of the indicator light of the display circuit LDP.

Note that a DC power supply is superimposed on the signal line Ls by a power supply circuit that is omitted in FIG. It is supplied as r Vcc rVss.

In addition, the function key FUK of the keyboard KB
For example, a number of station line buttons corresponding to the station lines COt to COs, and a single hold button for holding the station line.

A single monitor button for monitoring by the speaker SP and rejecting extension calls, a single recall button for redialing, a single transfer button for transferring after holding the central office line, a single extension button for internal dispute calls, etc. Corresponding to these, an indicator light of a display circuit LDP is provided.

FIG. 3 is a flowchart of the control situation by the 8U processor CPU in the main device, (N is steady processing, (B)
indicates interrupt processing, and in (A), "initialization processing" is performed when the power is turned on, and each telephone STI
After storing the operation data from the 5T16 in the variable memory RAM and performing "received data processing" to perform judgment and control accordingly, check the status of the station lines C01 to CO5, and store this data in the variable memory. Store it in RAM and perform judgment and control accordingly.
After performing "station line processing", based on the settings of the switch board and the time measurement by the clock circuit in the processor CPU,
At night, a "daytime/nighttime switching process" is performed that allows the central office lines COI to Con to be connected only to specific telephones 5TI-8T16.

Next, if the timer in the processor CPU continues the calling state for, for example, 30 seconds and the other party does not respond, it performs "extension timeout processing" such as canceling the calling state, and then calls the caller from the doorphone DRP. If there is an incoming call, the 6-door phone incoming call process is performed, control is performed accordingly, and the steps from 1 received data process °' are repeated.

In Fig. 3(B), interrupt processing is performed at a cycle of 16.5 m5ec, detection for the above-mentioned "daytime/night switching processing" is performed by "TNGHT", and 'TC
O”, the control 2nd station line Co of the contact xp.

~Dial pulse transmission control for CO5 1 station line CO
After detecting incoming calls from i~co5, T S
Sends and receives data to and from the stain filling machine ST1 5TI6, and then sends command data to make the speakers SP of the telephones ST and ST+a intermittently ring using tone signals. ,and,
After performing the timeout detection for the above-mentioned 6-extension mayme act process, the TDK' detects the incoming call from the door phone DRP used for the above-mentioned ``door phone incoming call process'', and the call from the door phone DRP is e.g. se
If the telephone STI-5T16 does not respond even after the call continues until c, timeout detection is performed to cancel the ringing state.

In addition, data signal transmission and reception with the telephone 5T1=STt6 by the transmission control circuit SRC and the transmission circuit SRK is as follows.
The control data and operation data are temporarily stored in the memory in the transmission control circuit SRC.
Each data transfer is performed between this memory and the processor CPU.

FIG. 4 is a flowchart showing the details of the central office line hold control. When the 6 hold button is operated on any telephone STn, the processors C and PU execute variable memo + 7 according to the contents of the RAM. Is the station line being captured? If the answer is YES, the office line is placed on hold and any telephone STI~s'r.

In addition to setting the normal hold mode, which allows you to answer the station line from STn.
For example, the station line indicator light corresponding to the station line is 5716se.
c on + 1/16 sec off, 1716 sec on p '/16 sec off, then flash the eye-hold display, and then display the "hold display". The station line indicator light corresponding to the station line is made to blink in a state of, for example, 1/2 sec on + 1/2 sec off to display a hold display.

Also, if "6 station line acquisition control" is No, variable memory R
Depending on the content of the AM message, the telephone STn checks whether there is a central office line on hold or not. ”, and if this is YES, the telephone ST
Determine whether "Self-Hold?" is determined for n, and if the answer is NO, set the hold station line to "Self-Hold" according to the contents of the variable memory RAM and the order of the hold operations, first or last. The telephone ST that performed the hold operation for the station line that was placed on hold
In addition to setting a self-holding mode that allows only people to respond,
``My hold display'' is performed by lighting up the hold indicator light of the telephone STn.

Furthermore, when the self-hold mode or the normal hold mode is set, the data indicating these modes will be set to ``Self-hold the holding station line'' or 6. Stored in variable memory RAM.

Regarding the above, is there a personal reservation? If YES to ``, the station line will be released from self-hold'' according to the contents of the variable memo IJ RAM.
Otherwise, the telephone STn shifts to the normal hold mode and turns off the hold indicator light of the telephone STn by selecting "Stop My Hold Display."

Therefore, in response to repeated operations of the hold button, the normal hold mode and self-hold mode are alternately and repeatedly set, and the number of station lines for which the self-hold mode can be set on the telephone STn is limited to one line. .

In addition, when each of the above steps is completed, the process moves on to the next operation data processing from the telephone.

Figure 5 shows the response to the hold station line or the station lines CO1 to C.
This is a flowchart showing the central office line acquisition control for making a call to Os, in which an off-hook and central office line button operation, or a monitor button and central office line button operation are performed on any telephone STn, and the "main line acquisition request" state is reached. Then, depending on the contents of the town-hen memory RAM, the processor CPU will ask, ``Is the local line on hold?'' ”, and if this is No, similarly “Is the station line normally on hold?” ”, and if this is also NO, similarly “The station line is IDL
E? ”, and in response to YES, connect the stain removal machine STn to the station line and connect the stain removal machine STn to the station line, and then connect the telephone 5Tn to the station line.
After performing "my line display" in which the O office line indicator light flashes, and after having other telephones perform "busy display" in which the office line indicator light continuously lights up, the primary telephone Shift to ``operation data processing''.

Regarding the above, is the station line on hold? If `` is YES, it is determined whether the self-holding is based on the hold operation of the telephone STn or not according to the contents of the townhen memory RAM by asking ``Reply?'', and if this is YES, 6 "Hold Response" reconnects the telephone STn to the holding station line according to the contents of the variable memory RAM, and "Stop My Hold Display" turns off the hold indicator light of the telephone STn.

However, if the "1 station line capture request" is from another telephone set, 6 "re-response?" becomes No, and connection to the holding station line is blocked.

Also, is the station line usually on hold? When ``is'', a ``hold response'' is made regardless of whether the ``station line acquisition request'' is from any of the telephones ST1-5T16, and connection to the holding station line is established.

Therefore, whether or not connection to the holding station line can be established is determined by "re-response?", and "re-response?" Only when '° is YES, the telephone that has made the "main line acquisition request" will be connected to the holding office line.

FIG. 6 is a flowchart of automatic hold control. In this case, if the extension button is operated while the station line is being acquired, the station line being acquired will be put on hold, so the operation of the hold button is omitted. be able to.

In other words, when you perform the ``extension button operation'' on any telephone STn, the ``Central line acquisition?'' message appears. ” is no
If so, it will be a "response to an incoming call with 0 extensions captured" and the state will shift to a call state to another telephone or a conversation state with another telephone, but there is a variable memo! J The processor CPU responds to the contents of the RAM by saying “Located to local line?” ” is judged as YES, it is set as “’Normal hold for the local line’” as shown in Figure 4, and after making the telephone 8Tn perform “Eye-hold display”, it is placed on hold for other telephones. “Display” is performed.

Then, depending on the contents of the variable memo IJ RAM, the telephone ST
Determine the “other self-holding station line foot?” of n, and determine if this is N.
If it is O, as in Figure 4, ``Self-hold the holding station line''
Then, the telephone STn displays "My Hold", switches from normal hold mode to self-hold mode, and displays "extension acquisition" or "extension capture" to transfer to or receive a transfer from another person. Shift to "Incoming call response".

However, is there another self-holding line? If `` is YES, it becomes a normal hold mode!

Note that when the self-hold mode is set, when the extension button is operated on the transfer destination telephone, the self-hold mode is canceled, so that the transfer destination telephone can capture and respond to the holding station line.

It goes without saying that the self-hold mode can also be canceled by operating the hold button on the telephone STn.

Therefore, are there any other self-holding station lines? “is N.

If so, the transfer will automatically shift to self-hold mode, and the holding station line will be prevented from being captured by a telephone other than the transfer destination, and in this case as well, the self-hold mode setting by telephone STn will be as follows: The hold operation is limited to the last line in terms of the order of hold operations that are put on hold by "operating the extension button."

On the other hand, in Fig. 4, when "self-holding the holding station line according to the order of holding operations," the first or last one in the order of holding operations may be self-holding, but the last If something is put on self-hold, the holding time during all holding stations is minimized, and there is no risk of forgetting the self-holding.
While this is convenient for operation, if the first one is placed on hold, this station line is often the one used for outgoing calls.
It is convenient for handling, and it is only necessary to decide whether the first one or the last one should be self-reserved depending on the conditions of the operator.

FIG. 7 is a block diagram summarizing the configuration of the present invention.
Swcl + SW (! Central line COt by Z, CO
If there is a capture operation in step 2 and a hold mode is selected using the hold button SWh, the variable memory RAM and the corresponding memory MEM set the hold mode for each hold station line in correspondence with the telephone STa i or STb that performed the hold operation. If a further hold operation is performed on the telephone STa or STb, the judgment unit JUD corresponding to the processor CPU determines that all the hold operations are held by the telephone STa or STb according to the contents of the memory MEM. After checking the holding mode of the station line, if there is a holding station line in self-holding mode, it will shift to normal holding mode, but if there is no self-holding mode, the station line Co determined according to the order of holding operations will be changed.
1 or Co2, and accordingly controls the contact and hold tone sending circuit as well as the connection part CN corresponding to the contact The number is limited.

However, in FIG. 1, the number of central office lines Col"Cos and the number of telephones 5Tl-8Tt6 may be determined according to conditions, and the number of telephones S
Tl to 5T16 may be connected in common, and the buttons on the telephones ST1 to s'r, , may be either non-locking or locking, and the configurations in Figures 1 and 2 may vary depending on the situation. The steps can be arbitrarily selected according to the conditions, and in FIGS. 3 to 6, steps can be replaced or unnecessary steps can be omitted depending on the conditions.
Various modifications are possible.

〔Effect of the invention〕

As is clear from the above explanation, according to the present invention, the number of holding station lines in self-holding mode by the same telephone is limited, and the occupation of all station lines by the same telephone on self-holding is eliminated, thereby improving the operational efficiency of central office lines. This improves the performance and provides remarkable effects in various key telephone devices.

[Brief explanation of drawings]

The figures show an embodiment of the present invention, in which Fig. 1 is a block diagram of the main device, Fig. 2 is a block diagram of the telephone, Fig. 3 is a flowchart of the control situation by the processor of the main device, and Fig. 4 is a central office line hold. 70-chart of control, FIG. 5 is a flowchart of central line acquisition control, FIG. 6 is a 70-chart of automatic hold control, and FIG. 7 is a block diagram summarizing the configuration of the present invention. COx-COs ” ” ” ”Stational line, ST+ ~ST
t 6+ STa +5Tb-・Fist・Telephone (button phone), zp II @・−Contact, CPU---Processor, MM, MEM...Fist memory, 5RC---
φ・Transmission control circuit, SRK, SR8---"Transmission circuit, KB 111111 II keyboard, FUK...
・Refunction key, CNTs・Fist・Fist control unit, S
Wh...Hold button, 5Wc1゜SW(,2...
- Office line button, JUDe-9 judgment section, CN...φ connection section. Patent applicant: Tamura Electric Manufacturing Co., Ltd. Agent: Masaki Yamakawa (and one other person) Figure 3 (A) (B) 4th
Figure 5 (6) Illustration Procedure Amendment (Import) Mr. Commissioner of the Japan Patent Office (Monday/Monday) 58.5.251
, Indication of the case 1982 Patent Application No. 54479 2, Name of the invention Button telephone device 3, Person making the amendment Relationship to the case Patent Applicant name (name)
(363) Tamura Electric Manufacturing Co., Ltd. → 1 Conquest → Number of inventions to be added - 111... 5. Subject of amendment (11 Detailed explanation column of the invention in the specification txt Specification page 9 Correct “flashing” in line 11 to “turn on, dim”. (2) Correct figure 5 to the attached sheet.

Claims (1)

[Claims] A self-hold mode that accommodates multiple station lines and allows responses to be made only from the key telephone that has performed the hold operation on the held station line, and a self-hold mode that allows responses to the held station line from any key telephone. A button telephone device in which a normal hold mode can be freely selected in a button telephone, a storage means for storing a hold mode of a holding station line in correspondence with a key telephone that has performed a hold operation; When a hold operation is performed, the hold mode of all hold station lines by the button telephone is checked according to the contents of the storage means, and if there is a hold line in self-hold mode, the mode is shifted to normal hold mode, while the mode is changed to normal hold mode. If there is no hold station line, the station line corresponding to the order of the hold operation is set to self-hold mode, and the number of hold station lines in self-hold mode by the same key telephone is limited. Features a button telephone device.