JPS63217855A - Communication terminal equipment - Google Patents

Abstract

PURPOSE:To improve the operability by devising the titled equipment such a way that the dialing from a 1st communication network to a 2nd communication network is attained automatically by having only to operate one subscriber selection key. CONSTITUTION:If it is discriminated by a connection state informing means C that the connection by the dialing of the 1st dial number information is disabled, the call is given up automatically and the redialing is applied to the 2nd communication network in response to the dial number information stored in the 1st dial information memory A. Thus, the user writes dial number information at each communication network as to desired communication opposite terminal equipments into the 1st dial information memory A in advance and has only to operate one subscriber selection key corresponding to a communication opposite terminal equipment, and the dialing to the 1st communication network and the redialing to the 2nd communication network if the connection to the 1st communication network is disabled are applied automatically. Thus, the operation relating to the redialing is simplified.

Description

[Detailed Description of the Invention] [Purpose of the Invention (Industrial Application Field) The present invention provides a communication terminal that is connected to a subscriber line of an exchange that can be connected to a plurality of different communication networks, and that is equipped with an automatic dialing function. Concerning improvements to equipment.

(Prior Art) In recent years, with the increase in communication demand, various communication networks such as a second subscriber telephone network and a dedicated communication network have been constructed in addition to the subscriber telephone network. These communication networks generally connect the exchanges of subscriber telephone networks, and when a subscriber uses these communication networks to communicate with a desired party, the communication party must be determined in advance for each communication network. This can be accomplished by sending a dialing signal corresponding to the telephone number from the subscriber's communication terminal device to the exchange of the subscriber telephone network, thereby calling the communication partner via the desired communication network.

On the other hand, many communication terminal devices such as telephone devices and facsimile devices are equipped with an automatic dialing function. This automatic dialing function, for example, stores the telephone number of a desired communication partner in advance in a dial memory in association with a registered number, and responds when an arbitrary registered number is input using a dial key or a subscriber selection key. A telephone number is read from the dial memory, and a dial signal consisting of a dial pulse or a DTMF signal is generated in accordance with the telephone number and sent to the line. Therefore, by using a device equipped with this type of calling function, the subscriber can register the telephone number of the desired communication partner in advance in the dial memory, and when making a call, all the subscriber has to do is enter the registered number with only a few digits. It is very convenient because you can make a call with simple operations.

However, when this type of communication terminal device is used by connecting it to the exchange of the subscriber telephone network mentioned above, conventionally, for the desired communication partner terminal, the telephone number of each communication network to which this terminal can be connected is determined in advance. Automatic dialing can only be made to one communication network that has been registered. Therefore, if the line of the communication network that was used to make the call using automatic dialing is in use and the subscriber wants to select another communication network to make the call, the subscriber can, for example, put the handset on-hook to make the call. Once abandoned, the user had to manually input the phone number into another communication network to call again, which was extremely cumbersome.

Also, in order to enable automatic dialing to different communication networks, it is possible to store the telephone numbers for each communication network in association with each subscriber selection key. Since each telephone number must be associated with a subscriber selection key on a one-to-one basis, it is no longer possible to associate a subscriber selection key with a communication terminal on a one-to-one basis, and as a result, automatic dialing is not possible. There was a problem with the number of partner terminals decreasing. Furthermore, since conventional devices store the telephone number of the other party's communication terminal in direct association with each subscriber selection key, each time the correspondence between telephone numbers and subscriber selection keys is changed, the telephone number is I had to re-enter all the digits, making it extremely troublesome to register a phone number.

(Problems to be Solved by the Invention) As described above, in the conventional device, if one communication network is blocked, the subscriber must manually make a re-call to another communication network. The ease of making calls is poor, and if you try to make automatic dial calls to each communication network, the number of communication terminals that can be used to make automatic dial calls will decrease, and it will be easy to associate dial number information with each subscriber selection key. However, the present invention has focused on this point, and by simply operating one subscriber selection key, calls can be changed from a call to a first communication network to a call to a second communication network. The process up to making a call can be performed automatically, thereby eliminating the need to limit the number of communication terminals that can be automatically dialed. It is an object of the present invention to provide a communication terminal device whose attachment can be easily changed.

[Structure of the Invention] (Means for Solving the Problems) As shown in FIG. 1, the present invention provides first dial information that stores dial number information for each communication network for a desired communication partner terminal. A memory A and a second dial information memory B are provided for storing storage location information of each dial number information stored in the first dial information memory A in association with a subscriber selection key for each partner communication terminal. Also, a connection state determining means C for determining whether connection to a corresponding communication network is possible based on a signal arriving from the exchange after transmitting a dial signal, and a first dial transmitting means;
A second dial sending means E is provided, and when a call request to the desired communication partner terminal is input using the subscriber selection key, the first dial sending means E performs the following operations.
According to the storage location information stored in the second dial information memory B, dial number information of the first communication network is selected from among the dial number information corresponding to the communication partner terminal from the first dial information memory A. read out,
A dial signal corresponding to this dial number information is sent to the exchange after acquiring the subscriber line, and after the dial signal is sent by the first dial sending means, the connection state determining means C connects to the first communication network. If it is determined that this is not possible, the second dial sending means E releases the subscriber line and then sends the first dial information memory A to the first dial information memory A according to the storage location information stored in the second dial information memory B. The dial number information of the second communication network is selectively read from among the respective dial number information corresponding to the communication partner terminal, and the dial signal is sent to the exchange.

(Function) As a result, if the first communication network that originally made the call cannot be connected, the call is automatically abandoned and the dial number information stored in the first dial information memory A is changed to In response, a re-call will be made to the second communication network, so the user writes in advance the dial number information for each communication network for the desired communication partner terminal in the first dial information memory A. By simply operating one subscriber selection key corresponding to the communication partner terminal, you can make a call to the first communication network and make a call if it is not possible to connect to the first communication network. The re-calling to the second communication network is automatically performed, thereby simplifying the operation related to the re-calling. Further, each dial number information is stored in a first dial information memory A, and storage location information of these dial number information is stored in a second dial information memory B in association with a subscriber selection key for each communication partner terminal. Since it is memorized, all dial number information for one communication partner terminal can be registered for each subscriber selection key.
This makes it possible to eliminate limitations on the number of communication terminals to which automatic dialing can be made. Furthermore, when changing the association of communication partner terminals with subscriber selection keys,
It is only necessary to change the storage location information of the dial number information stored in the second dial information memory, thereby simplifying the operation related to changing the registration.

(Embodiment) FIG. 2 shows the configuration of a telephone device which is a communication terminal device in an embodiment of the present invention.

This device is broadly divided into a telephone section and an automatic dialing section, which are alternatively connected to a subscriber line 1 of an exchange (not shown) via switching relay contacts 2. First, the telephone unit includes a telephone circuit 3, a transmitter 41, and a receiver 42.
The device is composed of a handset 4 with a built-in device, and a hook switch 5 that is linked to the hook operation of the handset 4.

On the other hand, the automatic dialing device section has a control circuit 6 consisting of, for example, a microcomputer. This control circuit 6 is composed of a main control section (CC) 61, a ROM 62 that stores its operating program, and an input section 63 and an output section 64 consisting of an I10 board. Operation signals from the provided dial key 71, subscriber selection key 72, redial key 73, Bose key 74, hooking key 75, registration key 76, and call switch 77 are input. In addition, 78 is hook switch 5
A hook signal is generated in conjunction with the on/off operation of the control unit 6.
This is the hook contact that inputs the input.

Further, the lIiI1wJ circuit 6 is attached with a RAM 8 as a dial information memory. This RAM 8 includes a first storage section 8a that stores telephone numbers for each of a plurality of communication networks for each communication partner terminal, as shown in FIGS. 3(a) and 3(b), and a first storage section 8a. 8a, and a second storage section 8b that stores the storage address of each telephone number stored in 8a in association with each key of the subscriber selection key 72 for each communication partner terminal. Note that 81 is a backup power source for the RAM 8 in case of a power outage.

On the other hand, the output section 64 of the control circuit 6 outputs drive control signals to the DTMF signal generation circuit 9, the relay drive circuit 10, and the display 18 made of, for example, a light emitting diode. First of all, the DTMF signal generation circuit 9
TMF (Dua ITone Multi
This DT
The MF signal is sent to subscriber line 1 via line transformer 12, switching relay contact 2 and dial contact 11, respectively. Further, the relay drive circuit 10 operates the switching relay contact 2 and the dial contact 11 for transmitting dial pulses in accordance with the drive control signal from the control circuit 6. Further, the display 18 lights up in response to the dial signal sending operation, thereby notifying the user that the dial signal is being sent.

Further, a signal detector 13 is connected to the subscriber line 1. This signal detector 13 detects signals representing the exchange connection state, such as dial tone, busy tone, ring bank tone, etc., arriving from the exchange after sending out the dial signal, and outputs the detection signal to the control section 6. still,
Reference numeral 14 denotes a loudspeaker receiving circuit used when making an on-hook call, and is composed of an amplifier 15, a speaker 16, and a mute circuit 17.

By the way, the control circuit 6 includes dial number registration control means 65, first dial transmission control means 66, and second dial transmission control means 67 as shown in FIG. 4 as control means related to the calling operation. ing. First, the dial information registration control means 65 operates when the registration mode is designated by the operation of the registration key 76, and when the telephone number of each of the plurality of communication networks to which this terminal is connectable is input for a desired communication partner terminal. Save these phone numbers to the first page of RAM8.
is stored in the storage unit 8a of the subscriber selection key 7.
When a storage address of the first storage section 8a is input in association with each key of No. 2, the storage address is prioritized in the order of input and stored in the second storage section 8b of the RAM 8. Also, the first dial sending control means 66
When the subscriber selection key 72 or the re-dial key 73 is operated, it performs capture control of the subscriber line 1, and also controls the acquisition of the subscriber line 1 according to the storage address stored in the second storage section 8b of the RAM 8. The telephone number 13 corresponding to the communication network with the first priority is read out from the section 8a, and the dial pulse or DTMF signal corresponding to this telephone number is sent to the dial contact 11 or the DTM.
The F signal is generated from the F signal generation circuit 9 and sent to the exchange via the subscriber line 1.

Further, the second dial sending control means 67 determines whether or not a busy tone detection signal is output from the signal detector 13 after the first dial sending controlling means 66 sends out the dial signal. When a tone detection signal is being output, the subscriber line 1 is temporarily released by switching the switching relay contact 2, and after a predetermined pause period, the priority number is stored from the first storage section 8a of the RAM 8. The telephone number corresponding to the second-ranked communication network is read out, and a dial pulse or DTMF signal corresponding to this telephone number is generated and sent through the subscriber line 1 to the exchange. In addition, if the communication network with the second priority is also busy, the second dial transmission control means 67 will dial the telephone number of the communication network with the third priority if it is registered in the RAM 8. Reads the telephone number and performs re-call control. That is, until a connectable communication network can be selected, call control is performed on communication networks in which telephone numbers are stored in order according to priority.

Next, the operation of the device configured as described above is controlled by a control circuit 6.
This will be explained according to the control procedure. Incidentally, the first storage section 8a and the second storage section 8b of the RAM 8 have already stored the telephone number and its storage address for each communication network of the desired communication partner terminal, respectively, as shown in FIG. I will explain it as if it were there.

In the standby state, the control circuit 6 monitors the operation of the registration key 76, monitors the occurrence of incoming calls, and monitors the occurrence of outgoing calls in steps 5a, 5b, and 5C, respectively, as shown in FIG. In this state, when the subscriber goes off-hook by picking up the handset 4 or pressing the call button 77, the control circuit 6 detects this in step 5C and proceeds to step 5d, where the switching relay contact 2 is first connected to the telephone. By switching from the department side to the automatic dialing device side, the line (subscriber line 1) is captured using the line transformer 12. Note that if the user goes off-hook by picking up the handset 4, the line is captured when the hook switch 5 is turned on. When the line is captured, the control unit 6 causes the subscriber to abandon the call and send the dial tone DT from the exchange in steps 5e and 5f, respectively.
When the dial tone DT arrives, the input operation of the dial number is monitored in step 5Q.

If the subscriber abandons the call by performing an off-hook operation, the process moves to step 5k to release the line and then return to the standby state.

Now, when the subscriber specifies the calling party by operating the subscriber selection key 72 while the dial tone DT has arrived, the control unit 6 detects this operation in step 5q and proceeds to step 5h. Then, it is determined whether the dialing operation is manual or automatic. In this case, since automatic dialing is made by operating the subscriber selection key 72, the control section 6 moves to step 51, where it recognizes the key code of the subscriber selection key 72, and sets a predetermined pause time in step 5j. Thereafter, the process moves to step 6a in FIG. Then, in this step 6a, first, from the second storage section 8b of the RAM 8, the first storage address among the storage addresses stored in the address corresponding to the key code of the subscriber selection key 72 is read out, and then R according to this first storage address in step 6b.
The telephone number is read from the first storage section 8a of AM8. Then, each time one digit of the telephone number is read out from the RAM 8, in step 5C, a dial pulse or DTMF signal corresponding to this telephone number is generated from the dial contact 11 or the DTMF signal generation circuit 9 and sent to the subscriber line 1, and In step 6d, the display 18 is turned on to notify the subscriber that dialing is being sent. Then, each time the transmission of the dial signal for one digit is completed, in step 6e and step 61, it is determined whether the transmission of the dial signal has been completed and whether the busy tone BT has arrived from the exchange WM? j! The above dial signal transmission control is repeated until transmission of dial signals for all digits is completed. In this way, a dialing signal corresponding to the first telephone number is sent out. On the other hand, if the line of the communication network corresponding to the above-mentioned first telephone number is connectable and the communication partner terminal is in a standby state, the exchange performs a well-known switching connection operation and the communication partner terminal The line between the two is connected, and the IT control unit 6 performs predetermined call control in step 6f. When the call ends, this is detected in step 6Q, and the line is released in step 5h, and after a predetermined call termination process is performed, the process returns to the standby state.

By the way, if all lines of the communication network corresponding to the first telephone number are in use and connection is impossible, the exchange will send a busy tone BT. Then, the control unit 6 moves from step 61 to step 6j, where it first stops sending the dial signal and stops the display 18 from displaying that the dial is being sent.Subsequently, in step 6, the control unit 6 moves to step 6j, where it stops sending the dial signal and stops the display of the dial sending on the display 18. It is determined whether the second storage address is stored in . If the second memory address is currently stored, the line is temporarily released in step 6β, and after a predetermined period of time necessary for the exchange to return to the standby state in step 6m, step 6
Reacquire the line at n and proceed to step 7a as shown in Figure 7.
And in step 7b, operation monitoring of call abandonment and arrival monitoring of dial tone DT are performed, respectively. After inserting a predetermined pause time in step 7d, the second storage address is read out from the second storage section 8b of the RAM 8 in step 7e, and the second storage address is read out from the first storage section 8a of the RAM 8 in step 7f. The telephone number stored in the address is read out, and in step 7Q, a dial pulse or DTMF signal corresponding to this telephone number is generated and sent to the subscriber line 1, and in step 7h, the display 18 is turned on and dialed. Notify subscribers that transmission is in progress. Thus, a call is now made to the communication network corresponding to the second telephone number. Note that the second storage section 8 of the RAM 8
If the second storage address is not stored in b, the control unit 6 moves from step 6k to step 60 and step 6p, where it respectively monitors the call abandonment operation and determines whether a certain period of time has elapsed. When the subscriber abandons the call by performing an on-hook operation or a certain period of time has elapsed, the process moves to step 6q, the line is released, and the line returns to the standby state.

In response to a call originating from the above-mentioned second telephone number, if the line of the communication network could be connected, the control unit 6 would perform the steps shown in FIG. 6 after confirming the ringback tone coming from the exchange. 6f call control, whereby the subscriber can make a call with the communication partner terminal.

On the other hand, if the communication network corresponding to this second telephone number is also not connectable, the control unit 6 confirms this by the busy tone BT coming from the exchange in step 7j, and in step 7 sends a dial signal and Display 18
Then, in step 7β, it is determined whether the third telephone number is stored in the second storage section 8b of the RAM 8. If the third telephone number is not stored, the return control according to steps 60 to 6q in FIG. Step 8
In accordance with the procedures shown in steps 0 to 8p, call control to the communication network corresponding to the third telephone number is executed in the same manner as in the case of the call based on the second telephone number.

As described above, in this embodiment, when attempting to make a call using automatic dialing to a destination terminal that can be connected to multiple communication networks, if the first communication network cannot be connected, the call is automatically made. The second communication network is selected and the call is made, and if the second communication network is also not connectable, a third communication network is automatically selected and the call is made. Therefore, the subscriber uses RAM 8 as dial information memory.
By pre-memorizing telephone numbers for each communication network with priority for one communication partner, all you have to do is operate the subscriber selection key corresponding to the communication partner, even if connection is impossible. Even if a communication network exists, a connectable communication network is automatically selected and a call can be made using this communication network.

Therefore, the operability of the subscriber when making a call is greatly improved, and the occurrence of input errors is reduced compared to conventional devices in which the telephone number had to be entered manually each time, making it more accurate. You can make a call.

Further, the RAM 8 as a dial information memory is composed of a first storage section 8a and a second storage section 8b, of which the first storage section 8a stores telephone numbers for each communication network for each communication partner terminal. and the second storage unit 8b.
Since the storage address of each telephone number stored in the first storage section 8a is stored in association with each key of the subscriber selection key for each communication partner terminal, each key of the subscriber selection key 72 It is possible to register all dial number information for one communication partner terminal for each communication network, and this makes it possible to make automatic dial calls to each communication network without reducing the number of communication terminals that can be automatically dialed. Become. Furthermore, when changing the association of communication partner terminals with subscriber selection keys, it is only necessary to change the storage address stored in the second storage section 8b of the RAM 8, which allows registration changes to be made. Related operations can be simplified.

Note that the present invention is not limited to the above embodiments. For example, the display may be a dot matrix display, and the type of communication network being called may be displayed on the display. In this way, the subscriber can clearly know through which communication network the subscriber is communicating. Further, the type of dial signal may be changed depending on the type of communication network. Further, in the above embodiment, the telephone number for each communication network for each communication partner terminal is stored in the RAM 8 and automatic dialing is performed for each terminal, but if the communication partner has a plurality of terminals with different telephone numbers. In some cases, the telephone numbers of these terminals may be stored, and these telephone numbers may be selected for automatic dialing. In addition, the number and type of communication networks, the configuration of the connection state determination means, the control procedure and control content of the first and second dial sending means, the configuration and storage form of the first and second dial information memories, and the communication terminal. The type of device (a data communication device such as a facsimile device may also be used) can be modified in various ways without departing from the gist of the present invention.

[Effects of the Invention] As detailed above, according to the present invention, the first dial information memory stores dial number information for each communication network for a desired communication partner terminal, and the first dial information A second dial information memory is provided that stores storage location information of each dial number information stored in the memory in association with a subscriber selection key for each partner communication terminal, and a second dial information memory is provided that stores storage location information of each dial number information stored in the memory in association with a subscriber selection key for each partner communication terminal. a connection state determining means for determining whether connection to a corresponding communication network is possible; a first dial sending means; and a second dial sending means.
dial sending means, and when a call request to the desired communication partner terminal is input using the subscriber selection key, the first dial sending means sends the second
selectively reading dial number information of a first communication network among each dial number information corresponding to the communication partner terminal from the first dial information memory according to storage location information stored in the dial information memory; A dial signal corresponding to this dial number information is sent to the exchange after acquiring the subscriber line, and after the first dial sending means sends out the dial signal, the connection state determining means determines that the connection to the first communication network is not established. If it is determined that it is possible, the second dial sending means releases the subscriber line and then sends the communication partner terminal from the first dial information memory according to the storage location information stored in the second dial information memory. By selectively reading the dial number information of the second communication network among the respective dial number information corresponding to the subscriber and transmitting the dial signal to the exchange, the subscriber selection key can be operated simply by operating one subscriber selection key. It is possible to automatically perform calls from the first communication network to the second communication network, thereby improving operability without limiting the number of communication terminals that can be automatically dialed. Furthermore, it is possible to provide a communication terminal device that can easily change the correspondence between dial number information and subscriber selection keys.

[Brief explanation of the drawing]

FIG. 1 is a functional configuration diagram of a communication terminal device according to the present invention, and FIGS. 2 to 8 are for explaining a telephone device that is a communication terminal device according to an embodiment of the present invention. 3 is a schematic diagram showing the configuration of the RAM, FIG. 4 is a functional block diagram showing the control contents of the control circuit, and FIGS. 5 to 8 show the control procedure of the control circuit, respectively. and a flowchart showing control details. A...First dial information memory, B...Second dial information memory, C...Connection state determination means, D...
・First dial sending means, E... Second dial sending means, 1... Subscriber line, 2... Switching relay contact,
3... Call circuit, 4... Handset, 5... Hook switch, 6... Control circuit, 8... RAM, 8
a...first storage section, 8b...second storage section, 9.
...DTMF signal generation circuit, 10...relay drive section,
DESCRIPTION OF SYMBOLS 11...Diamond 26 single contact, 12...Line transformer, 13...Signal detector, 14...Audible reception circuit, 15...Amplifier, 1
6... Speaker, 17... Mute circuit, 18...
・Display device, 61... Main control unit, 65... Dial information registration control means, 66... First dial sending control means, 67... Second dial sending controlling means, 71...
・Dial key, 72...Subscriber selection key, 73...
・Re-dial key, 74...Bose key, 75...
Hooking key, 76...Registration key, 77...Outgoing switch, 78...Hook contact key. Applicant's agent Patent attorney Takehiko Suzue-345= Figure 8

Claims (2)

[Claims] (1) In a communication terminal device that is connected to a subscriber line of an exchange that can be connected to a plurality of different communication networks and is equipped with an automatic dialing function, dial number information for each of the above-mentioned communication networks is transmitted to each of the desired communication partner terminals. a stored first dial information memory; and a second dial that stores storage location information of each dial number information stored in the first dial information memory in association with a subscriber selection key for each communication partner terminal. an information memory; a connection state determining means for determining whether connection to a corresponding communication network is possible based on a signal arriving from the exchange after sending a dial signal; When a call request is input, the first communication among the respective dial number information corresponding to the communication partner terminal is sent from the first dial information memory according to the storage location information stored in the second dial information memory. a first dial sending means for selectively reading network dial number information and sending a dial signal corresponding to the dial number information to the exchange after acquiring the subscriber line; and dial signal sending by the first dial sending means. If the connection state determination means later determines that connection to the first communication network is not possible, the subscriber line is released and then the connection state is determined according to the storage location information stored in the second dial information memory. Selectively reads the dial number information of the second communication network among the respective dial number information corresponding to the communication partner terminal from the first dial information memory, and after acquiring the subscriber line, dials the dial signal corresponding to this dial number information. A communication terminal device comprising second dial sending means for sending the dial to the exchange. (2) When it is determined that connection to the first communication network is impossible, the second dial sending means selects the dial number information of this communication network until a connectable communication network is found, and selects the dial number information of this communication network. 2. The communication terminal device according to claim 1, wherein the communication terminal device repeatedly sends a dial signal corresponding to the dial signal.