JPH063954B2 - Button telephone device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a key telephone device having a speed dial transmission function and a dial number control function.

[Conventional technology]

In key telephone devices, generally, a dial number control function that registers a prohibited dialing number and restricts the dialing number according to this number, and dialing of a number registered in advance according to the dialing operation of abbreviated numbers is performed. It is equipped with an automatic speed dial transmission function, but when the same number is registered in both functions and there is a conflict between both functions, one of the functions is given priority. .

[Problems to be solved by the invention]

As described above, in the conventional key telephone device, when the speed dial number and the prohibited dialing number are the same number and the speed dial calling function and the dial number control function compete with each other, one of the functions is given priority. Cage,
For example, if the dial number control function is prioritized, transmission of the registered speed dial number is blocked, and if the speed dial transmission function is prioritized, transmission of the dial transmission prohibited number is permitted.

On the other hand, each button telephone is given a service class,
Whether or not the above dialing prohibition number can be transmitted is determined by this service class, and the key telephones of the highest service class are allowed to transmit prohibited numbers and
Outgoing calls are not allowed for button phones in the lower class of service.

In such a situation, when the dial number control function is prioritized, it is difficult to allow one of a plurality of prohibited numbers as a call-permitting number of an exception for a button telephone of a lower service class. If you absolutely want to allow it, change to the highest class of service or change the registration of the prohibited call number.

However, if it is the highest class of service, all calling numbers are allowed, which is inconvenient, but if you change the registration, it is necessary to re-register a large number of forbidden numbers including lower digits, which makes the operation troublesome. In addition, an error is likely to occur in registration, and a memory area for registering a prohibited number must be prepared in a wide range, which causes a problem such as an increase in memory capacity.

Further, if the speed dial transmission function is prioritized, a problem arises that the prohibited number becomes invalid.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention comprises the following means.

That is, dial number control means for determining whether or not dialing is possible for a dial number based on a dial transmission operation of a key telephone, a first area for registering a system speed dial common to each telephone, and an individual for each key telephone. A speed dial memory having a second area for registering speed dials, and a button for restricting the dialing number read from the speed dial memory by dialing operation based on the dialing prohibition number and the button telephone service class In the telephone device, a determination unit that determines whether the speed dial transmission request from the key telephone belongs to the first area or the second area, and dial number control when the determination unit determines that the speed dial transmission request belongs to the first area. The operation of the means is stopped and the dial number in the first area is sent. It is provided with a control means for volume.

[Action]

Therefore, the number registered in the first area of the speed dial memory as the system speed dial is determined to belong to the first area by the determination means in response to the speed dial transmission request to the speed dial memory, and the operation of the dial number control means according to this determination. Since dialing of the first area is permitted due to the stop of the call, if you want to allow the key telephone of the lower service class to dial certain numbers among multiple dialing prohibited numbers, for example. By registering the dialed number in the first area, it becomes possible to make a call from the key telephone.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to the drawings showing examples.

Figure 1 is a block diagram showing the entire configuration, the main unit (hereinafter, KSU) to 1, the external line 2 ₁ to 2n of telephone line from the central office line or private branch exchange from the central office is housed Together with connectors CN _{1 to} CNm according to the housing position, and 1 each
Button telephones (hereinafter referred to as ST) 4 _{1 to} 4 m are connected via a pair of call lines and signal lines 3 ₁ to 3 m, and external lines 2 ₁
~ 2n is an outside line interface (LIF) 11 ₁
While it is connected to the call path switch (hereinafter, TSW) 12 via ~ 11n, the TSW12 and the lines 3 ₁ to 3m from each ST4 _{1 to} 4m are connected via the telephone interface (hereinafter, TIF) 13 _{1 to} 13m. The switch connection is made by cross points such as analog switches or relay contacts in TSW12.

The LIF11 _{1 to} 11n have functions of detecting an incoming call, closing a DC loop for an outside line, holding, and dialing with a pulse signal or a composite voice frequency signal.
Between the outside line 2 ₁ to 2n and ST4 ₁ ~4m, and, while having a replacement connection function between ST4 ₁ ~4m cross, TIF13 ₁ ~13m is, ST4 ₁ to 4
For m, power supply for communication via a communication line, transmission / reception of data signals via a signal line, supply of control power, and the like are performed.

Further, the KSU1 is provided with a processor (hereinafter, CPU) 14 such as a microprocessor, a fixed memory (hereinafter, ROM) 15 and a variable memory (hereinafter, RAM) 16 as a control unit. Control is performed while accessing predetermined data to RAM16, and the incoming detection output from LIF11 _{1 to} 11n, TIF13 ₁
ST4 via ST13 ₁ to 4 m makes a control judgment according to the operation data from ₁ to 4 m, controls LIF11 _{1 to} 11n, TSW12, and transmits control data via TIF13 _{1 to} 13 m to ST4.
_It controls _{1 to} 4m.

On the other hand, in ST4 _{1 to} 4 m, the communication circuit (hereinafter, TK
C) 31 is connected to the call line 32, and the signal line 33 is connected to the CPU 14 and the ROM 1 via a transmission circuit (hereinafter, SRC) 34.
5.Similar to RAM16, but connected to a control unit by a smaller CPU35, and controls the digital display (hereinafter DGP), tone generator, and amplifier in the display circuit (hereinafter DP) 36. , The display of the DGP and the release of the ringing tone by the speaker in accordance with the control data via the SRC34, and similarly, according to the control data, the keyboard (hereinafter KB) 37 equipped with dial keys and function keys In addition to controlling lighting, extinguishing, and blinking of the indicator light, operation data indicating these conditions is transmitted via the SRC34 in response to the operation of each key in the KB37 and the operation of the hook switch HS. .

The SRC 34 has a power source separation function, extracts the power source supplied from the KSU 1 side via the signal line 33, stabilizes the power source, and supplies it to each required unit as a local power source V. , CPU35 comes with ROM38 and RAM39, KSU
It is used in the same way as ROM15 and RAM16 of 1.

Therefore, if you go off-hook in any ST4, the operation data of this is received by the CPU 14, and KB37
The key operation in the middle is also the same, and CPU14 TSW according to the operation of the outside key or extension key and the operation of the dial key.
Controls 12 to make a switching connection, and if the call is an outside call, dial the call by controlling the selected LIF11.If the call is an extension call, control the DP36 to ST4 on the other side to release the ringing tone. And the call state by TKC31 is set by the response of the other party.

Incoming calls from the outside lines 2 _{1 to} 2 _n are detected by the LIF 11 _{1 to} 11 _n, and the CPU 14 controls the DP 36 of each ST 4 _{1 to} 4 m according to this, and emits an outside line incoming call ringing tone. If ST4 responds off-hook, CPU14
Controls TSW12 to complete the call path.

At the same time as these controls, the indicator lights in the KB37 are also controlled so that the corresponding lights are turned on.

In addition, the RAM16 of KSU1, with the last number area for dialing is provided corresponding to each ST4 ₁ ~4m, each ST
A common area for speed dials and areas for automatic dialing are provided for 4 ₁ to 4 m, respectively, for a plurality of dial numbers. These areas are redial memory, speed dial memory (hereinafter COM) and automatic dial memory (hereinafter ADM).
The contents of CDM and ADM are stored by the CPU 14 in accordance with each dial number registration operation from each ST4 _{1 to} 4m, and if there is a number display operation in any ST4, this CPU14 corresponds to the corresponding number
Since it is read from DM or ADM and sent as control data, the CPU35 of ST4 controls DP36 according to this and DG
The dial number is displayed by P.

The CDM is divided into a first area for registering system speed dials common to each ST4 _{1 to} 4m and a second area for registering individual speed dials for each ST4 _{1 to} 4m. ST4 _{1 to} 4m corresponding to multiple dial numbers are prepared.

Further, the RAM 16 is also provided with an allowable number area for registering a dialing allowable number for dial number control, and if a plurality of, for example, respective upper 3 digit allowable numbers are registered in the same manner as described above, Depending on these numbers, the CPU14 will make each ST4 ₁ to 4
the top of the dialing number for an outside line 2 ₁ ~2n from m 3
The number is checked, and dial number control is performed to prohibit outgoing calls unless it is an allowable number.

However, each ST4 _{1 to} 4m is assigned a service class of, for example, "4" to "1", depending on the installation site or the operator, and the highest "4" includes international calls. There is no regulation, "3" is allowed to make local and outbound calls, "2" is allowed to make only local calls, and "1" is set to prohibit all outside calls. Held for each class.

FIG. 2 is a flow chart of the control status by the CPU 14 of the KSU1, which judges "on-hook or function key operation?" 101 according to the received data from ST4, and this is Y (YE
If S), then "on-hook processing or function key operation processing"
Although the process proceeds to 102, "dial operation?" 111 is determined according to N (NO) in step 101, and if it is Y, "dial analysis process" 112 described below is performed and set according to the result. Check the "Dial call request?" 121 by the flag described later and
Control EF11, perform "dial call" 122, and click "RET
Step 101 and subsequent steps are repeated via "URN".

FIG. 3 is a lower order Sutin of step 112, and the ST4 “service class“ 1 ”? "201
Is checked by the data in the RAM 16 and if it is Y, the dial operation is invalidated by "Dialing prohibition" 202. However, depending on N in step 201, the "allowable number check ended?" 211 and “dial call allowed?” 212 are sequentially judged, and when step 211 is N, “allowable number check” 221 is performed and step 211
If is Y and the step 212 is also Y, a "dial number transfer" 222 is performed, and then a general outside line call processing is performed via "EXIT".

FIG. 4 is a sub routine of step 221, and the ST4 is “service class“ 4 ”? "30
If 1 is checked, and if this is N, the content of the dial operation is judged to be "system speed dial?" 302 belonging to the first area of the CDM. If this is also N, "compare with allowable number" 303 in RAM 16 "Are there matching numbers?" 311 is N
In that case, the allowable number check end flag set "312" corresponding to step 211 is performed, and then "dialing prohibition" 313 is performed similarly to step 202, while the third digit is reached when step 311 is Y. It is determined whether the check for the next digit is necessary or not 321 and the N of this is assumed, and the "permissible number check end flag set" 322 is performed similarly to step 312.

Then, "Redial?" 331 is judged, and if this is N, the dial operation number or the corresponding registration number of the first area is stored in the "last number area" of RAM 16 for each digit after checking. Step 332, Step 212
After performing the "dial call origination possible flag set" 333 corresponding to, return to step 201 via "RETURN".

If step 301 or 302 is Y, "permissible number check end flag set" 341 is immediately performed as in step 312, and the process proceeds to step 331.

FIG. 5 is a lower routine of step 222. As in step 331, "redial?" 401 is judged and this is N.
If so, each digit after the digit stored in step 332 is stored by "store in last number area" 402 of RAM 16, "dial call request flag set" 411 corresponding to step 121 is performed, and "RETURN" Through step 201
Return to and repeat the above processing for each digit of the dial operation.

Therefore, if it is a speed dial transmission request of the system speed dial, step 302 in FIG. 4 becomes Y and step 341 and steps 331 to 333 are immediately executed, so that steps 211 and 212 in FIG. 3 become Y. The routine shifts to the routine of FIG. 5, and in response to the flag of step 411, the CPU 14 performs the dial transmission control according to the contents of step 402 in step 122 of FIG. 2, so that the service classes are "3" and " 2 "ST4
Also, the system speed dial can be freely sent.

On the other hand, with ST4 _{1 to} 4m individual speed dials,
Dial number control is performed after step 303 in the figure, and if the number is not an allowable number, dial transmission is prohibited at step 313.

Therefore, speed dial numbers that allow outgoing calls even in lower service classes are registered in the first area of the CDM, and other speed dial numbers are registered in the second area of the CDM for each ST4 _{1 to} 4m. As a result, those in the first area are not subject to dial number control and are allowed to make outgoing calls freely, while those in the second area are subject to dial number control, so dialing is restricted unless it is an allowable number. To be done.

However, the configuration of FIG. 1 may be set according to the conditions,
2 to 5, depending on the situation, various modifications can be freely made such that the steps are interchanged or replaced with other equivalent ones, or unnecessary ones may be omitted.

〔The invention's effect〕

As is apparent from the above description, according to the present invention, the operation of the dial number control means is stopped when it is determined that the speed dial transmission request from the key telephone belongs to the first area in which the system speed dial is registered. For example, when it is desired to allow a lower-ranking service class button telephone to call a certain number among a plurality of dialing prohibited numbers, the dialed number is set in the first area, and the other numbers are set for each button telephone. If the individual speed dials are respectively registered in the second area, the second area will be subject to dial number control, and if the number is prohibited, dialing will be restricted and the first area will be Calls are allowed without being subject to dial number control, and the dial number control function and speed dial calling function It is possible to avoid the various problems that arise at the time of the competition.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, FIG. 1 is a block diagram of the entire configuration, and FIGS. 2 to 5 are flowcharts of control states by the CPU of the KSU. 1 · · · · KSU (main unit), 2 ₁ ~2n _···· outside line, 3 ₁ to 3
m · · · · lines, 4 ₁ ~4m ···· ST (EKT), 1
4,35 ・ ・ ・ ・ CPU (processor), 15,38 ・ ・ ・ ・ ROM
(Fixed memory), 16, 39 ... RAM (variable memory), 3
6 ... DP (display circuit), 37 ... KB (keyboard), HS ... Hook switch.

Claims (1)

[Claims] 1. A dial number control means for determining whether or not a dial number can be dialed based on a dialing operation of a key telephone, a first area for registering a system speed dial common to each key telephone, and each button. A speed dial memory having a second area for registering individual speed dials for each of the telephones, and dialing of the dial number read from the speed dial memory by the dial transmission operation is prohibited by the dialing prohibition number and the key telephone. In a key telephone device that regulates based on a service class, a determination unit that determines whether the speed dial transmission request from the key telephone belongs to the first area or the second area, and the determination unit is the first area. When it is determined that the dial number control means is stopped, Key telephone system which is characterized in that a control means for allowing the transmission of the first area of the dial number.