JP2673231B2 - Automatic selection signal transmitter for telecommunications networks - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention is an apparatus for automatically transmitting a selection signal for selecting a telecommunication line such as a telephone line to be used when a call is made with a called party. Regarding [Prior Art] Existing domestic telecommunications networks include those owned by Nippon Telegraph and Telephone Corporation (hereinafter referred to as "NTT"), but in addition to this, some telecommunications owned by other telecommunications carriers. A network is being set up. Therefore, if a telecommunications network is provided by a telecommunications carrier other than NTT, the telecommunications carrier other than NTT and subscribers to NTT must be
Either a dedicated communication line or a communication line of a telecommunications carrier other than NTT can be selected. [Problems to be Solved by the Invention] For example, when the above-mentioned subscriber tries to make a call from within Tokyo to Osaka using a communication line of a telecommunications carrier other than NTT, for example, Before dialing the area code (06), for example, a four-digit number for identifying a telecommunications carrier other than NTT (hereinafter referred to as an identification number)
Have to dial. That is, for example, You must dial a total of 13 numbers in a row. Therefore, in such a case, there is the following problem. (1) Since there are many numbers to be dialed, there is a high possibility that they will be mistaken. (2) It takes much time because there are many numbers to dial. (3) If there are multiple communication lines by multiple telecommunications carriers other than NTT, store all identification numbers corresponding to them or select an identification number for one communication line to be used (Or memorize) (and therefore is cumbersome). (4) Since a dedicated NTT line can be used, the user should use a communication line of an electric signal provider other than NTT (hence, whether to add an identification number).
You must always be aware of whether or not to make a call. In other words, it takes time for the selection. Accordingly, an object of the present invention is to solve the above problems and to provide at least two subscribers to a telecommunications carrier with:
For example, when trying to make a call to a predetermined area using a predetermined communication line, simply dial only the (city code +) subscriber number of the other party without any troublesome work. The purpose is to provide a device. A further object of the present invention is to provide a device that can make a call without performing a dial operation again even if a time-out signal is input. [Means for Solving the Problems] The present invention is an automatic selection signal transmission device for a telecommunication network which is used in a state where it is connected to a telephone, and which stores at least one predetermined area code. Means, second storage means for storing a selection signal from the telephone, and whether the area code of the selection signal issued from the telephone in the off-hook state matches the information in the first storage means. Determining means for making a determination, means for adding an identification signal for connecting to a predetermined telecommunication line when the determination made by the determining means is a coincidence determination, and storing the selection signal in the second storage means; 2. Calling means for making a call based on the information in the storage means, and the off-hook state when a time-out signal is input before the calling means makes a call based on the information in the second storage means. Phone The apparatus further comprises means for once hooking on, then off hook again, and causing the calling means to call again based on the information in the second storage means. [Operation] According to the present invention, even if a telephone number is temporarily stored and a time-out signal is input, the telephone number once stored is called by turning the telephone on-hook and then off-hook again. . FIG. 1 shows an embodiment of the present invention. In FIG.
Reference numeral 1 denotes a telephone having a handset and a push button, which generates a tone signal (a signal in an audible frequency band) as a selection signal. 2 is a decoder for the telephone 1
The serial selection signal from is converted into a serial digital signal and output. A serial / parallel (S / P) converter 3 converts a serial digital signal from the decoder 2 into a parallel digital signal. 4 is CPU, 5 is C
A ROM having an area for storing the control procedure as shown in FIGS. 4 and 5 for controlling the PU4 and an area for storing predetermined area code information, 6 is a digital signal from the S / P converter 3 A RAM having an area for temporarily storing signals, a flag area for storing information for determining an applicable area code for telecommunications carriers other than NTT, and an area for storing identification signal information, etc. is there. 7 is a parallel / serial (P / S) converter, which is a CPU
The parallel signal from 4 is converted into the serial signal by selecting the signal (or the signal adding the identification signal to the signal). Reference numeral 8 is an encoder which converts a serial digital signal from the P / S converter 7 into a tone signal corresponding to the form of the output signal of the telephone 1 and sends this to the NTT exchange 9. Reference numeral 11 is an exchange owned by a telecommunications carrier other than NTT, and a signal from the exchange 9 is input to the exchange 11 via the NTT communication line 9A and further sent from there to the called station side. L1 and L2 are coils, C is a capacitor, and is a bypass path connecting the input end of the decoder 2 and the output end of the encoder 8.
Above 13, a smoothing circuit that substantially cuts off components other than the DC component is formed. SW1A, SW1B and SW2 are switches whose opening and closing are controlled by SPU4. Switches SW1A and SW1B
Interlock so that when one is closed the other is open. When the switch SW1A is closed, it bypasses the smoothing circuit and directly connects the telephone 1 and the exchange 9. The switch SW2 is provided on the signal line closer to the exchange 9 than the connection point of the bypass path 13 and creates an off-hook state by opening from the closed state. When the telephone 1 is on-hook, the selection switch 10 described later is NT
When T is selected and the telephone 1 does not dial 0 (that is, the beginning of the area code) at the time of off, the CPU 4 closes the switch SW1A, opens the switch SW1B, and closes the switch SW2. In addition, as shown in FIG. 2, in ROM5 and RAM6,
The following information is stored. That is, the ROM 5 has an area code information storage area that stores all area codes in Japan. The RAM 6 is a selection information storage area that stores selection information from the selection switch 10 that selects one of NTT and a plurality of telecommunications carriers other than NTT, and a CPU 4 based on information in the selection information storage area. A plurality of plug areas storing information indicating applicable area codes for each telecommunications carrier to be selected, and an identification signal storage area storing identification signals (numbers) of the plurality of telecommunications carriers Have. As shown in FIG. 2, the area code information storage area of the ROM 5 stores the area code information of 2 digits, 3 digits, and 4 digits in order from the top address, and the flag area I (selection switch) of the RAM 6 is stored. Corresponding to the telecommunications carrier selected by 10)
Is a 1-bit sequence from the top address (that is, "0" or "1") so that each address corresponds to the address of each area code in the area code storage area of ROM5.
Information is stored. When this information is "0", it indicates that the corresponding telecommunications carrier is not using (the corresponding area code in the area code information storage area of ROM5).
When it is "1", it indicates that the same carrier uses the same area code. Reference numeral 12 denotes a host computer, which receives a tone signal as a control signal from this host (for example, a control signal relating to the area code to be added or deleted by a predetermined telecommunications carrier, as will be described later) via the exchanges 11 and 9. In addition, switch SW2, bypass path 13 (switch SW1A), decoder 2,
Input to CPU4 via S / P converter 3 and R as described later.
Change the memory information in AM6. The tone signal (signal in the audible frequency band) input from the telephone 1 to the decoder 2 has the number of dial buttons, that is, 12 different tones, as shown in the portion surrounded by the solid line in FIG. However, the decoder 2 has 4
It is possible to decode tone signals of different tones. Incidentally, these four tone signals can be generated in the telephone 1 (this is temporarily defined as A, B, C, D as shown in a portion surrounded by a dotted line in FIG. 3), and It can be transmitted by a communication line and can process data. Therefore, the decoder 2 can decode these 16 tone signals into 4-bit serial data, which is converted into parallel data by the S / P converter 3 and input to the CPU 4. Next, the operation of the CPU 4 at the time of rewriting the area code will be described with reference to FIG. For example, an operator (or host computer, etc.) of a predetermined telecommunications carrier other than NTT is
By calling the telephone 1 of a subscriber who is subscribed to a carrier other than NTT and switching the telephone 1 from on-hook to off-hook, the telephone 1 and the carrier other than NTT communicate with the communication line 9A, the exchange 9, Then, the operator of the business operator can notify the user of the telephone 1 that the applicable area code (which the business operator can service) will be changed. The person can know that, and operates the selection switch 10, for example, to select the operator and go on-hook. After confirming this on-hook, the host computer 12 sends a control signal for rewriting the area code to the telephone set 1 side. First, in step S1, it is determined within a predetermined time whether a tone signal as a control signal for rewriting the area code is input from the host computer 12. As this control signal, for example, a tone signal indicating DDA (see FIG. 3) which is not generated from the telephone 1 is applied. When such a control signal is input, step
Proceed to S2, where the storage information in the plug area of RAM6 is changed. RAM6 from the operator's host computer 12
The number of serial tone signals corresponding to the number of addresses in the flag area (here, I) of the relevant business operator is input to the decoder 2 (via the bypass 13). This tone signal is input to the S / P converter 3, from which it is sequentially input to the CPU 4 as a 4-bit parallel digital signal.
It is input from U4 to RAM6 and its contents are rewritten by 4 addresses from the head address of the flag area I. For example, suppose that Fig. 2 shows the state where rewriting is completed.
You can see that the area code "06" in M5 has become the applicable area code. Then, proceed to step S3. Note that the contents of change in step S2 are, for example, addition or deletion of the applicable area code as described above, and addition of a new identification signal in the identification signal storage area, or addition from the same area. For example, deleting the identification signal of the part. First, in step S3, the data of all the addresses in the flag area I of the RAM 6 are added, and the total value is stored in the RAM 6. It should be noted that the host computer 12 side similarly stores the addition total value of the rewrite data regarding the flag area I. Then, in step S4, the last two digits of the total value stored in the RAM6 and the last two digits of the addition total value sent by the tone signal from the host computer 12 (decoder 2, S / P conversion) , Which is obtained through the device 3). If a match is determined, go to step S5 to send a confirmation signal of completion of rewriting to the P / S converter 7,
It is sent to the host computer 12 via the encoder 8,
finish. If a mismatch is determined in step S4, the process proceeds to step S6, where a signal indicating the mismatch is sent to the host computer 12 via the P / S converter 7, the encoder 8 and the like, and then the process returns to step S1. When the mismatch signal from the telephone 1 side is input, the host computer 12 sends a control signal for confirming the area code to the telephone 1 side.
When the host computer 12 repeats the above operation and receives a mismatch signal, for example, three times, it determines that the device of the present invention related to the telephone 1 is in failure and takes appropriate processing. Next, the operation of the CPU 4 at the time of calling will be described with reference to FIG. The CPU 4 starts when the selection switch 10 selects other than NTT. In step S11, it is judged whether or not the selection signal from the telephone 1 is input through the decoder 2 and the S / P converter 3, and if so, the process proceeds to step S12, where the beginning of the input selection signal is "0" ( It is judged whether it is a dialed number or not, and if it is not "0", it is in the city (for example, the calling side of Tokyo
This is the case when a call is made from the inside of the ward to the 23 wards of the called party in Tokyo). In this case, the selection signal is sent out via the bypass path 13 (the beginning of the input selection signal has already been sent out via the bypass path 13 in step S11). If the start is "0" in step S12, proceed to step S13A, where switch SW1A is closed to open, switch SW1A is closed.
Switch 1B from open to closed. By this, the bypass road
13 substantially blocks the passage of tone signals from telephone 1. Then, in step S13B, the selection signal (including the head) from the telephone 1 is stored in the RAM 6, and the process proceeds to step S14. In step S14, the flag area (for example, I in FIG. 2) corresponding to the telecommunications carrier selected by the selection switch 10 of the RAM 6 is searched, and the market of the ROM 5 corresponding to the address in which "1" is stored is searched. Determine whether there is a selection signal (city code) input from the telephone 1 in the area code information storage area,
If there is a corresponding area code, proceed to step S15. In step S15, the identification number (for the business operator based on the information in the identification signal information storage area) is added before the selection signal from the telephone 1 in the RAM 15, and the process proceeds to step S16. If there is no applicable area code in step S14, the process proceeds to step S16. In step S16, it is judged whether or not a time-out signal (for example, an intermittent signal having a frequency of 400 Hz) is input from the exchange side through the bypass path 13, the decoder 2 and the S / P converter 3.
If not input, the process proceeds to step S17. If the time-out signal is input in step S16, the process proceeds to step S18, in which it is determined whether all dialing operations have been completed. This judgment can be made, for example, based on whether the total number of (the area code number (it varies depending on the area code) + the local code number + the subscriber number) has been dialed (stored in the RAM). If, for example, 20 seconds elapse between each dial (operation), it is determined that the dial operation is not completed. Therefore, when the dial operation is completed in step S18, the process proceeds to step S19. If the dialing operation is not completed, the process ends (for example, the switches SW1A and SW1B return to the original state and return to the start). In step S19, the switch SW2 in the closed state is once opened (that is, it is the same as the telephone 1 being on-hook when viewed from the exchange side), and then the switch SW2.
2 is closed (that is, it is the same as telephone 1 going off-hook when viewed from the exchange side). Then, in step S17, the storage number in RAM 6 (only the selection number or the identification number + the selection number) is sent to the exchange side via the P / S converter 7, encoder 8, switch SW2, etc.
finish. When the time-out signal is not input in step S16, the leading "0" of the sending number has already been sent, so that the one corresponding to this "0" is not sent. If a time-out signal is input in step S16, step S19
Since it is once in the on-hook state, all storage numbers in RAM6 are sent out. FIGS. 6 to 11 are views showing a state in which each of the above-described embodiments of the present invention is built in the telephone main body, or externally attached as an adapter to the outside of the telephone main body, and further attached to a private branch exchange. . In each figure, the switch is
This is the same as the selection switch in the above embodiment. The adapter is, for example, the components 2 to 8, 10, 13, L1, L2,
Corresponds to SW1A, SW1B and SW2. FIG. 12 is a system diagram showing a line utilization mode when a call is made from the telephone with an autodialer (selection signal automatic transmission device) according to the present invention. EFFECTS OF THE INVENTION According to the present invention, when a subscriber to at least two telecommunications carriers attempts to make a call to a predetermined area using a predetermined communication line, for example, no trouble is caused. You can simply dial only the other party's (area code +) subscriber number without any trouble, and even if a time-out signal is input, you can make a call without redialing again. A device can be provided.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is an area explanatory diagram of a storage means, FIG. 3 is an explanatory diagram of a dial on a telephone, and FIGS. 4 and 5 are An operation flowchart of the present invention, FIGS. 6 to 11 are diagrams showing each aspect of the structure of the telephone, and FIG. 12 is a system diagram showing a line utilization aspect according to the present invention.

Claims (1)

(57) [Claims] A telecommunication network selection signal automatic transmission device used in a state of being connected to a telephone, comprising: first storage means for storing at least one predetermined area code; and first selection means for storing the selection signal from the telephone. 2 storage means and determination means for determining whether the area code in the selection signal issued from the telephone set in the off-hook state matches the information in the first storage means, and the determination made by the determination means are the same. A means for adding an identification signal for connecting to a predetermined telecommunication line at the time of judgment and storing it in the second storage means, and a call for making a call based on the information in the second storage means Means for temporarily on-hooking the telephone in an off-hook state when a time-out signal is input until the calling means makes a call based on the information in the second storage means,
An apparatus for automatically transmitting a selection signal for a telecommunication network, further comprising means for off-hooking again and means for causing the calling means to call again based on the information in the second storage means.