JP2524851B2 - Button telephone device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention provides a modem which accommodates a plurality of outside lines, a key telephone, and a single telephone, and which is connected to the single telephone in response to an incoming call of a designated outside line. The present invention relates to a key telephone device that performs data communication via the telephone.

[Prior Art] In the conventional button telephone device of this type, when an incoming call arrives at an external line designated for data communication, a single telephone pre-allocated to the external line rings. Then, the single telephone responds to the incoming call, and the data terminal device connected to the single telephone via the modem performs data communication with the other party.

[Problem to be Described by the Invention] In the above-mentioned conventional button telephone device, when the subscriber numbers of a plurality of outside lines to be accommodated are one representative number, the representative number is externally assigned to the button telephone device. When dialing and making a call, if the lowest outside line of this device is in use, the incoming call will come to the next available outside line, and as a result, only the outside line for data communication will be available. In this case, even if the representative number is dialed for the purpose of calling, an incoming call arrives at the external line for data communication and the incoming call is answered.Therefore, in order to make the original call, call again. There was a problem that had to be.

[Means for Solving the Problem] In order to solve such a problem, in the key telephone device according to the present invention, all the outside lines other than the specified outside line are in use when an incoming call arrives at the specified outside line. Is provided with means for turning off the ringing of the incoming call of the single telephone which responds to the incoming call to the designated outside line.

[Operation] When all outside lines other than the specified outside line for data communication are in use, even if an incoming call arrives at this specified outside line, the single telephone that answers the incoming call to the specified outside line does not ring, and as a result, The response of the single telephone to the incoming call of the designated outside line is blocked.

EXAMPLES Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a key telephone device according to the present invention. In the figure, the main device 1 is
Six external lines 2 ₁ to ₂₆ such as a central office line from a central office or a telephone line from a private branch exchange are accommodated, and a pair of communication lines and signal lines 3 ₁ depending on the accommodation position are used. EKT 4 ₁ is connected, also other key telephone (not shown) similarly connected. In addition, a single telephone 4 _m is also connected via the line 3 _m . And the outside line 2 ₁
~ ₂₆ are connected to the call path switch 12 via the outside line interfaces 11 _{1 to} 11 ₆ , respectively, while the call path switches
12 and the line 3 ₁ to 3 _m from each phone 4 ₁ to 4 _m, the telephone interface 13 ₁ and single line telephone interface 13 _m
The communication path switch 12 is used to perform exchange connection.

The external line interfaces 11 _{1 to} 11 ₆ have functions such as incoming call detection, DC loop closing for external lines, holding and dialing, and the call path switch 12 includes external lines 2 ₁ to 2 ₆ and telephones 4 ₁ to 4 _The telephone interface 13 ₁ supplies the telephone power to the key telephone 4 ₁ via the call line and the data signal via the signal line, while having a switching connection function between the telephone and the respective telephones 4 ₁ to 4 _m. It transmits / receives the power and supplies the control power, etc.
_m supplies power for calls, sends ringing tone, and detects hooks and dial signals for 4 _m of individual telephones.

Further, the main device 1 is provided with a CPU 14 such as a microprocessor, a fixed memory ROM 15, and a variable memory RAM 16, and R
The CPU 14 executes the program in the OM 15, and the CPU 14 controls while storing the data generated at that time in the RAM 16 or referring to the contents of the RAM 16 when necessary. Also, the CPU 14 is an outside line interface 11 ₁
~ 11 ₆ incoming call detection output, phone interface 13 ₁
The operation data from the key telephone 4 ₁ via the telephone and the hook and dial signal of the single telephone 4 _m via the single telephone interface 13 _m are used to make a control judgment, and the outside line interfaces 11 _{1 to} 11 ₆ , the call path switch 12, each telephone In addition to controlling the interfaces 13 _{1 to} 13 _m , control is performed by transmitting control data through the telephone interface 13 ₁ when controlling the key telephone 4 ₁ and independent telephone interface when controlling the individual telephone 4 _m.
Control is performed by sending a ring tone signal etc. through 13 _m .

In contrast, in the key telephone set 4 _1, together with the speech circuit 31 is connected to the speech line 32, to the signal line 33, via the transmission circuit 34, the control unit 35 is connected, the display circuit 36
The tone generator and the amplifier are controlled, and the display by the display circuit 36 and the sending of the incoming call ringing sound by the speaker are performed according to the control data through the transmission circuit 34.
Operation of each key in the keyboard 37 and hook switch HS
The operation data indicating these situations is transmitted to the main device 1 via the transmission circuit 34 in accordance with the operation of.

The transmission circuit 34 has a power source separation function, extracts the power source supplied from the main unit 1 side via the signal line 33, stabilizes the power source, and supplies it as a local power source V to each necessary unit. ing.

Also, in the case of a single telephone 4 _m, an external line ringing tone, an internal line ringing tone, etc. ring by the ringing tone signal via the single line telephone interface 13 _m controlled by the CPU 14, and when this is off-hook, this is received by the CPU 14, and as a result, the incoming call is received. And so on. Further, when a dial call is made after going off-hook to make a call, this is received by the CPU 14 and the call path switch 12 and the like are controlled to make an exchange connection.

Then, in this embodiment, with one representative number is assigned to the six external 2 ₁ to 2 ₆ to be accommodated in the device, it is also given subscriber number for each outside line. Then, the purpose is five external 2 ₁ to 2 ₅ used for the call, and in external 2 ₆ other one intended for use for data communication, in advance in the external line 2 ₁ to 2 ₆ Corresponding telephone set 4 ₁ to 4 _m
The ring tone ringing restriction has been set. That is, the outside line
For incoming calls from 2 ₁ to outside line ₂₅ , the single telephone 4 _m does not ring and other button telephones can ring and answer, and for incoming calls to outside line ₂₆ , This single phone is set to ring and answer only 4 _m .

Then, when the other party dials the subscriber number corresponding to the outside line ₂₆ accommodated in this key telephone device for data communication, the incoming call arrives at the outside line ₂₆ . CPU14 is an incoming arriving in the outside line 2 ₆ input via the outside line interface 11 _6, based on the pre-set ring tone regulation data, and sends an instruction signal incoming ringing in single line telephone interface 13 _m , Ring a single phone 4 _m connected to it.

When the ring tone sounds, this single telephone 4 _m automatically closes the loop and responds to this incoming call, and thereafter, by a data terminal device (not shown) through the modem 5 connected to this single telephone 4 _m. And data communication is performed.

Next, the operation of the CPU 14 in the configuration of the above embodiment will be described in detail based on the flowchart of FIG.

When an incoming call arrives at any of the outside lines 2 ₁ to ₂₆ , step 10
At 0, an incoming call to the modem-specified external line, that is, arrival of an incoming call to the external line ₂₆ for data communication is determined. And the outside line 2 ₆
If an incoming call arrives and it is determined to be "Y", step 101
In young numbered external, that is, outside line 2 ₁ to 2 ₅ for the call to determine whether all busy. If it is judged in step 101 that all of the younger outside lines are not in use and "N", in this case, it means that the other party dialed the subscriber number of this outside line ₂₆ for the purpose of data communication. At 102, only the individual telephone 4 _m to which the modem 5 is connected rings. As a result, as described above, the single telephone 4 _m automatically responds to this incoming call, and thereafter, data communication is performed with the other party via the modem 5.

Further, when the young numbered external 2 ₁ to 2 ₅ is determined as "N" in step 101 have been all busy, call each key telephone set other than the single line telephone 4m connecting a modem 5 at step 103 sounding Let That is, since the other party's representative number of the outside lines 2 ₁ to ₂₆ is transmitted for the purpose of making a call and all the younger outside lines 2 ₁ to ₂₅ are in use, the outside line 2 ₆ receives the incoming call for the purpose of this call. It is determined that the call has arrived, and the call is made to be received by another button telephone that makes a call.

If an incoming call does not arrive at the outside line ₂₆ but arrives at another outside line, it is determined as "N" at step 100, and at this time, another outside line incoming process is performed at step 104.

As described above, the key telephone device of the present invention is designed so that when an incoming call arrives at the external line 2 ₆ for data communication when all the outer lines 2 ₁ to ₂₅ of the lower number are in use. The ring tone is set to ring for each key telephone other than the single telephone 4m to which the modem 5 for performing the above is connected. As a result, the modem 5 that performs data communication for the incoming call for the purpose of the call
Therefore, it is possible to promptly answer another key telephone without connecting to the telephone, and to save the trouble of making a call again for the purpose of a call, and to provide a convenient device.

[Effects of the Invention] As is apparent from the above description, in the key telephone device according to the present invention, when all outside lines other than the designated outside line for data communication are in use, an incoming call arrives at this designated outside line. Even if a single phone that responds to an incoming call to a designated outside line is set to not ring, it will block the response of the single telephone that performs data communication for an incoming call to the designated outside line and immediately call another button telephone. Therefore, there is an effect that it is possible to provide a device which is easy to use and saves the trouble of making a call again for the purpose of making a call.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the key telephone device according to the present invention, and FIG. 2 is a flow chart for explaining the operation of this embodiment. 1 ...... Main device, 2 ₁ to 2 ₆ ...... Outside line, 3 _{1 to} 3 _m ...... Line, 4 ₁ …
… Button telephone, 4 _m …… Single telephone, 5 …… Modem, 11
_{1 to} 11 ₆ …… External line interface, 12 …… Call path switch, 13 ₁ …… Phone interface, 13 m …… Single phone interface, 14 …… CPU.

Claims (1)

(57) [Claims] 1. A button telephone device for accommodating a plurality of external lines, a key telephone and a single telephone, and for performing data communication via a modem connected to the single telephone in response to an incoming call to a specified external line for data communication. In the case where an incoming call arrives at the designated outside line, when all outside lines other than the designated outside line are in use, a means for making the incoming call ringing for the single telephone set non-ringing is provided. A key telephone device, characterized in that the response of the single telephone is blocked.