JPH059984B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a telephone with a built-in modem, which is equipped with a network control section and a keyboard, and has manual and automatic network control modes for outgoing and incoming calls.

[Conventional technology]

A telephone with a built-in modem used in combination with a network control unit (hereinafter referred to as NCU) and a telephone, or
For telephones with built-in modems that have NCU functions and a keyboard, when making and receiving calls, the desired mode can be selected from among multiple network control modes using a switch, etc., depending on whether various controls such as line capture are performed manually or automatically. It is also a must to set it.

[Problem that the invention seeks to solve]

However, setting using a switch or the like is troublesome and is prone to setting errors. If the setting is incorrect, various controls will not be normal, resulting in abnormal call/receive operations.

[Means for solving problems]

In order to solve the above-mentioned problem, the present invention is constructed by the following means.

That is, it is equipped with a modem that is connected to a telephone line and modulates and demodulates data, a network control unit, and a keyboard, and has two modes: a manual outgoing mode for making manual outgoing calls, an automatic outgoing mode for automatic outgoing outgoing calls, and a manual incoming call mode. A telephone with a built-in modem that has multiple network control modes, including a manual incoming call mode for answering incoming calls and an automatic incoming call mode for automatically answering incoming calls, and a built-in modem that transmits data between an external device and a telephone line. A memory is provided to store input automatic call acceptance information, and when the call processing is performed based on keyboard operation or off-hook operation as the call mode, manual call mode is selected and the call processing is performed based on instructions from an external device. If a call is received, the automatic call mode is selected, and if the call is answered by keyboard operation or off-hook operation when the call is received, the manual call reception mode is selected, and the automatic call enable information is stored in the memory. If there is, the automatic call receiving mode will be selected.

[Effect]

Therefore, when the call process is performed based on a keyboard operation or an off-hook operation as the call mode, the manual call mode is selected, and when the call process is performed based on a command from an external device, the automatic call mode is selected. Further, as the incoming call mode, when the incoming call is answered by keyboard operation or off-hook operation at the time of incoming call, the manual incoming call mode is selected, and if the automatic incoming call enable information is stored in the memory, the automatic incoming call mode is selected.

[Example] Hereinafter, details of the present invention will be explained with reference to figures showing examples.

Fig. 2 is a block diagram of a telephone with a built-in modulator/demodulator (hereinafter referred to as MDM), in which line terminals L ₁ and L ₂ to which telephone lines are connected are connected to a relay contact RL 1 and a hook switch each using a make-before-or-break contact. A similar call circuit (hereinafter referred to as "DIC") is connected via a parallel circuit of HS and relay contact rl2, diode bridge DB, and integrated circuit dial circuit (hereinafter referred to as DIC) 1.
TKC) 2 is connected, and if the hook switch HS is turned on in response to the off-hook, a DC loop is closed via TKC 2, and the current is constant due to the diode bridge DB regardless of the polarity of the line terminals L ₁ and L ₂ . The polarized loop current is DIC1 and
The DIC 1 responds to the dial key operations on the keyboard (hereinafter referred to as KB) 3, which has dial keys and various operation keys, and uses this as a power source to operate the TKC 2. The set pulse signal (hereinafter referred to as
DP) or composite audio frequency signal (hereinafter referred to as PB), in the case of DP, the DC loop is turned off and on in DIC1, and the PB
In this case, the control signal SC is sent out to switch the switching circuit (hereinafter referred to as SWC) 4 to its own output side, and
PB is sent out, harmonic components are removed by a low frequency filter (hereinafter referred to as LPF) 5, and then passed through SWC 4.
It is assumed that the signal is applied to the transmitting input t of TKC 2, and is sent to the line terminals L ₁ and L ₂ via the transmitting amplifier therein, thereby making a dial call.

Then, an exchange connection is established in response to the exchange, and when the other party responds, the receiver R of the handset connected to the receiving amplifier output r of TKC2 and the LPF 5 are disconnected by stopping the control signal SC, and at the same time, the connection is made via SWC4. TKC2 transmitting input t
You can freely make calls using a similar transmitter T connected to.

Also, the switch HS and relay connection RL
Tone ringer (hereinafter referred to as TRG) 6 is connected via each playback pole of 2, through capacitor C and resistor Rs.
is bridge-connected between line terminals L ₁ and L ₂ , and when a 16Hz ringing signal arrives at the time of an incoming call, it is activated by the power of this to generate a ringing tone, and the signal is transmitted via an impedance matching transformer T. In order to make the speaker SP ring, this will notify you of an incoming call.
The corresponding off-hook closes the DC loop in the same manner as described above, and the transmitter T and receiver R can freely make a response call.

Note that depending on the operation of relay contact rl2, the DC loop is closed even in the on-hook state, and the speaker SP is connected via the amplifier via the path omitted in the diagram.
is connected to the loop circuit, the on-hook monitor status is set and on-hook dialing can be made freely.

On the other hand, a polarity reversal detection circuit (hereinafter referred to as RPD) 10 that detects the make pole of relay contact rl1 and the other party's response
2-wire/4-wire connection via a line transformer LT, a resistance bridge, a receiving amplifier RA, a transmitting amplifier TA, a variable resistance attenuator ATT for setting the transmitting level, etc.
Hybrid circuit for line conversion (hereinafter referred to as HYB) 1
1. MDM12 with a communication speed of 1200Bit/sec and MDM13 with the same speed of 300Bit/sec, memory (hereinafter referred to as
A processor (hereinafter referred to as CPU) 15 such as a microprocessor (hereinafter referred to as MEM) 14, an input/output circuit (hereinafter referred to as I/O) 16, a driver for relays RL1 and RL2 (hereinafter referred to as DRV) 17, an interface (hereinafter referred to as I /F) 18 etc. are provided, and CPU15
The controller executes programs in the MEM 14 and performs various controls while accessing necessary data to the MEM 14.

In addition, a data terminal device (hereinafter referred to as DTE) 21 such as a personal computer is connected to the I/O 16 via the connector CN and I/F 18 as an external device, and the DTE 21 via the I/O 16
The CPU 15 performs judgment and control according to the signal exchange with the
15 performs judgment and control, drives relay RL1 via I/O 16 and DRV 17, and connects line terminals L ₁ and L ₂ to the line transformer through its contact rl1.
Connect to LT, thereby closing the DC loop and capturing the telephone line, and select either MDM 12 or 13 via I/O 16, and connect it via HYB 11 and line transformer LT.
Complete the DTE21 communication channel.

The relay RL2 is activated in response to the operation of the speaker key provided in the KB3, and when making an automatic call, it is activated in response to a command from the DTE21.
In response to the character dial signal from 21,
CPU15 connects DIC via I/O16 and KB3
1 and performs automatic dialing.

In other words, there are two types of communication transmission and reception using the DTE21: manual and automatic, and the combination of these allows for network control functionality equivalent to that of an NCU.
Multiple network control modes (hereinafter referred to as NCM) are defined, and information on whether or not automatic call reception is possible, which specifies whether to perform a manual response or an automatic response when receiving a call, is specified in the KB.
When input using step 3, the CPU
15 stores this information in the MEM 14 and then checks the same information in the MEM 14 when receiving a call, and depending on whether this information is valid or not.
If you select either manual or automatic NCM and if manual is given priority by the same setting operation, when the initial operation such as line acquisition is manual operation by off-hook or speaker key operation, NCM are to be selected manually.

Also, when making a call, if the initial operation such as line acquisition is manual by off-hook or speaker key operation, select manual NCM, and if the same initial operation is by command from DTE21,
The program is set to select automatic NCM.

Figures 3, 1, 3 and 5 are
This is a flowchart of the control status performed by the CPU 15 according to each NCM, and FIG. 3A shows manual transmission,
B in the same figure shows manual incoming calls, and in A, the on-hook and relays RL1 and RL2 are both restored to "idle" 101, and then manually "on-hook or
Speaker key operation? ” 102 becomes Y (YES) and the line is captured, select the NCM for manual dialing accordingly, and select “Manual dial dialing” 1.
After 11 is performed, ``communication processing'' 121 is performed in response to ``data communication key operation'' 112 in KB3, and thereby the DTE 21 to line terminals L ₁ , L ₂
When the communication ends and the "Speaker key operation?" 122 becomes Y again, the process returns to step 101, the telephone line is released, and the captured state is released.

In addition, in B, the automatic call reception availability information is set to ``no'', and a signal corresponding to the ready signal ER from the DTE 21 is turned on internally, and is unrelated to the same signal ER from the DTE 21. Next to step 201, when the speaker SP rings, "Incoming call?" 202 becomes Y, and in response, as in step 102, "Off hook or speaker key operation?" 203 becomes Y, then the NCM is manually marked as incoming call. Select “Call” 21
After step 1 is performed, "data communication key operation" 212 is performed as in step 112, "communication processing" 221 is performed as in step 221, and "speaker key operation?" 222 is returned to Y as in step 122. Steps according to
Return to 201.

Figure 1 shows that after manual line acquisition, manual or automatic dialing, and manual communication start,
From this point onwards, the line is automatically opened, and in this case, it is in response to the ready signal ER from the DTE 21, and the same steps as steps 101 and 102 include "idle" 301 and "off hook or speaker key operation?" ” 302, if step 302 is Y, the ready signal “ER on or manual dial transmission/standby” 311 from the DTE 21 is executed, and the ready signal “ER on?” Operation dial call?” 313 is determined in sequence, and step 313 is Y.
In that case, select NCM as manual call, and after "Manual dial call" 321 is performed, "Data communication key operation?" 331 becomes Y,
After the call indication signal “CI on” 332 from MDM 12 or 13, the ready signal “ER on?” 3
41 again and follow the Y steps.
Similarly to step 121, "communication processing" 342 is performed, and if the ready signal "ER off?" 343 becomes Y, the process returns to step 301.

For the above, if step 312 is Y, automatic transmission of NCM is selected, and
After performing "Dial call" 322, step
Move to 331.

Figure 4 shows a case where manual line acquisition, manual communication start, and automatic line release are performed when a call arrives. ” 401, as in steps 202 and 203, if “Incoming call?” 402 and “Off hook or speaker key operation?” 411 are Y, step
After "Call" 412 is performed as in Step 211, if "Data communication key operation?" 421 is Y, "CI ON" 422 to "ER
off? 433, and as step 443 becomes Y, the process returns to step 401.

FIG. 5 shows a case where both outgoing and incoming calls are automatic. In this case, automatic incoming call availability information is enabled, and the system responds to the ready signal ER from the DTE 21. If the ready signal "ER on?" 502 from the DTE 21 becomes Y after "idle" 501, automatic transmission of NCM is selected, and the line is captured and character dial transmission is performed by "automatic transmission processing" 511, and step 121 After performing the "communication processing" 512 in the same manner as above, the ready signal "ER off?" 513
In response to Y, the process returns to step 501.

On the other hand, while step 502 is N, "Incoming call?" 50
If 3 is Y, this is determined according to the detection output RGD of TRG6. In this case, the automatic call reception availability information in the MEM 14 is enabled, the automatic reception NCM is selected, and the MDM 12 is selected as in steps 332 to 341. or call display signal from 13 “CI on” 521~
After ``ER on?'' 531, ``automatic call processing'' 532 is performed in response to Y, and then the process moves to step 512.

Therefore, even if the NCM is not set using a switch, the NCM is automatically determined just by setting the automatic call acceptance/rejection information, which eliminates the trouble of setting the NCM and eliminates malfunctions caused by incorrect settings. be able to.

However, as automatic call reception availability information, in addition to specifying either internal ON of ready signal ER or response to same signal ER from DTE21,
Other information may be used depending on the conditions, and it is optional to prohibit manual priority and set automatic priority or no particular priority, and combinations of outgoing and incoming calls with manual and automatic In addition to Figures 3 to 5, the selection can be made depending on the situation;
Various modifications can be made, such as the configuration of the figures being the same.

〔Effect of the invention〕

As is clear from the above explanation, according to the present invention, when the call processing is performed based on a keyboard operation or an off-hook operation as the call mode, the manual call mode is selected and the call processing is performed based on a command from an external device. If the call is received, the automatic call mode is selected, and if the call is answered by keyboard operation or off-hook operation when the call is received, the manual call reception mode is selected, and the automatic call enable information is stored in the memory. Since the automatic call receiving mode is selected when the call is received, the NCM is automatically determined, and there is no need for any combination settings, which eliminates the trouble of setting up the settings, and eliminates the possibility of incorrect settings. Remarkable effects can be obtained.

[Brief explanation of drawings]

The figures show an embodiment of the present invention; FIG. 1 is a flowchart of the control situation, FIG. 2 is a block diagram of a telephone with a built-in modem, and FIGS. 3 to 5 are flowcharts similar to FIG. 1. . 1...DIC (dial circuit), 2...TKC (call circuit), 3...KB (keyboard), 6...TRG
(tone ringer), 11...HYB (hybrid circuit), 12, 13...MDM (modulator/demodulator), 14...
...MEM (memory), 15...CPU (processor),
21...DTE (data terminal equipment), _L1 , _L2 ...Line terminal, RL1, RL2...Relay, rl1, rl2...
…contact.

Claims (1)

[Claims] 1 Connected to a telephone line and equipped with a modem that modulates and demodulates data, a network control unit, and a keyboard, the outgoing mode is a manual outgoing mode for making outgoing calls manually, an automatic outgoing mode for making outgoing calls automatically, and a manual outgoing mode for incoming calls. In a telephone with a built-in modem that has a plurality of network control modes, including a manual incoming call mode for answering incoming calls and an automatic incoming call mode for automatically answering incoming calls, and for transmitting data between an external device connected to the outside and the telephone line, the keyboard A memory is provided for storing automatic call acceptance information input from the external device, and when the call processing is performed based on the keyboard operation or off-hook operation as the call mode, the manual call mode is selected, and the automatic call reception information from the external device is selected. If the call is made based on a command, the automatic call mode is selected, and if the call is answered by the keyboard operation or off-hook operation when the call arrives as the call reception mode, the manual call reception mode is selected, and the manual call reception mode is selected. A network control method for a telephone with a built-in modem, characterized in that when automatic call reception enable information is stored in a memory, the automatic call reception mode is selected.