JPS63318895A - Telephone terminal equipment - Google Patents

Abstract

PURPOSE:To instantaneously originate an extension call and an office line call without the direct current closing of an office side or the sending of a pulsing signal by providing a storing means which stores the pulsing signal from a telephone set, in a customer station simple exchange. CONSTITUTION:In a case to telephone to an office line 1 by a telephone set 31 for instance, after an off-hook, an operator sends the pulsing signal of a first figure. A CPU 11 stores the said pulsing signal of the first figure in a memory 12, and at the same time, it watches whether the pulsing signal of a second figure is inputted within definite time t2 or not. Then, when it detects the pulsing signal of the second figure within the time t2, it decides that this call is the office line call, and makes a direct current close circuit operate, and transmits the pulsing signal, stored in the memory, to the office line 1 successively from the first figure. On the other hand, in the case that the pulsing signal of the second digit is not inputted even if the time t2 elapses after the input of the first digit, the CPU 11 decides that it is an extension call, and executes an extension communication operation.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field 1] The present invention relates to a telephone terminal device such as a simple switchboard used in a home.

[Background Art 1] Figure 7 shows an overall model of a telephone terminal device constituting a simple switchboard used in a home, and this telephone terminal device A
Connect station #X (external #X) 1 and multiple extensions 21..., and each internal #E 2 +... has telephone charges 3□...
Connect it.

each? ! ! Talking device 3. It is possible to talk in the dark with a telephone outside the house through RJ line 1, and telephone 3. It is now possible to make internal calls between...

Usually, the number of extension telephones 31 connected to this type of telephone terminal device 1 is about 2 to 7, so a one-digit number is usually used for extension calls.

When making a call, there are two possible ways to make a call: call from station #i (external #i) and call from an extension line, but ``'θ'' call is often used as a means of switching between these. FIG. 8 shows the operating procedure in this case. First, in the case of a central office line call, after 7 turns off
Dial J and then dial the other party's number as a selection signal. In the case of an extension call, it is sufficient to dial the selection number corresponding to the extension number immediately after going off-hook. Such an operation is a so-called "immediate extension call" and "external #aO call."

However, since the method of making a call is different between the above-mentioned "outside line O call" and a normal standalone telephone, it is difficult for inexperienced people to use the system. Also, redial 8 to the phone connected to the extension! However, if there is a Noh function or a speed dial function, it has disadvantages such as making history complicated.

An operating method shown in FIG. 9 has been considered to solve this problem. This repeating method is ideal because all you have to do is dial the selected number for both the internal and central office lines (external lines), and there are no special rules.

In other words, in the case of "immediate outside call", the off-hook of the telephone is detected as shown in Fig. 10(a), and at the same time, as shown in Fig. 10(e),
), the central office line is connected to direct current, and then, as shown in FIG. 10(b), dial calls from the telephone can be accepted.

When calling an extension, a selection signal for the first digit of the dial is input as shown in FIG. 11(b), and if the next digit is not dialed after time L1 has elapsed, it is determined that the call is an extension call.

However, in this case, as shown in Fig. 11(a), the 11th
As shown in Figure (c), there is an rIIJ problem in which DC connection is performed and the first digit selection signal is sent to the station.

Therefore, for these reasons, it has not been possible to realize a telephone terminal device that can immediately call both extension lines and central office lines (external M). The telephone terminal 5 is capable of unnecessary DC connection, local operations such as calling an extension without sending a selection signal, and immediate calling of station R (external line)! It is to provide a location.

[Disclosure 1 of the Invention The present invention provides a telephone terminal that connects a telephone to a central office line, makes outside calls, and performs local operations such as internal calls using a selection signal of a predetermined number of digits from the telephone! Ar! In i,
A sending means for sending a selection signal to the office line, a hook state detection means for detecting the hook state of the telephone, a selection signal detection means for detecting the selection signal from the telephone, and a DC closing means for connecting the DC circuit of the office line. and storage means for storing a selection signal from the telephone set, the selection signal from the telephone detected by the selection signal detection means being stored in the storage means, and the hook state detection means detecting off-hook. If the selection detection means detects the next selection signal within a certain period of time from the detection of the selection signal of the last digit of the number of digits corresponding to the post-local operation, the DC connection means is operated and stored in the storage means. The selection signal data is sent to the central office line via the sending means, and if the selection detection means does not detect the next selection signal within the fixed time, the DC connection is performed by the DC connection means and the first sending means is applied. The present invention is characterized by comprising a control means for regulating the transmission of selection signal data and setting local operation.

The present invention will be explained below with reference to Examples.

FIG. 1 shows the circuit configuration of the embodiment device of the present invention.
The incoming call detection circuit 4 is for detecting an incoming call from station #I (outside M) 1, and the DC closing circuit 5 is for closing the DC circuit of station #11 and sending a connection signal to the station. be. The dial output circuit 6 sends a selection signal to the station W! It is a sending means with i-function. The switching circuit 7 is connected to the central office line 1 and optionally 82.
. . . Alternatively, it is composed of a switch matrix circuit that allows extension lines to be freely connected to each other, and is connected to the central office line 1 via a coupling transformer T. Dial pulse detection circuit 8
. . . constitute means for detecting the seven switch states and selection signals of each telephone 8, 31, . The ringing signal generating circuit 9 is a circuit for outputting a ringing signal when a call arrives on the central office line or an extension ringing signal to the telephone set 3 + . The tone signal generating circuit 10 is a circuit for generating a ring back tone when an extension is called and a pseudo dial tone when the telephone 31 is hooked off.

CPU II constitutes the control means of the device of the present invention,
It performs judgment processing on signals from each part and controls each part to realize the function of a simple switch. The memory 12 is a storage means having a function of temporarily rewriting data under the control of the CPU II.

In this embodiment, the extension call is made using a one-digit selection signal, and by detecting the transmission interval between the first-digit selection signal and the second-digit selection signal, station #i (external) is M) The operation of the CPU II is programmed to distinguish between a call and an extension call.

Next, the operation of the apparatus of the present invention will be explained based on the case of actual transmission based on the 70-chart in FIG. 2 and the timing charts in FIGS. C/3 and tJIJ4.

For example, call 8!3. Dial number 908-113
When making a call to station M (outside #i) 1, first off-hook is detected by the dial pulse detection circuit 8.1 as shown in FIG. 3(a). Detected in Next, telephone 3, from Figure 3 (
When the first digit selection signal “9” is input as shown in b),
The CPU II stores this selection signal "9" in the memory 12, counts a certain period of time t2 from the input, and monitors whether the second digit selection signal "0" is input within this certain period of time t2. . Here, the second digit selection signal"
0'' is detected within a certain period of time t, [t,], the station line (
0 If it is determined that the call is a station line (external line) call, the CPU II operates the DC closing circuit 5 as shown in FIG. 3(c) to close the DC circuit of the station line 1. Since the selection signal of the second digit has already been completed at the time when the DC connection is performed, the CPU II stores the selection signal data input from the telephone 31 in the memory 12 as described above, and performs the DC connection described above. After the connection, as shown in FIG. 3 (cl), the selection signal is sequentially read out from the memory 12 starting from the first digit and sent to the dial output circuit 6.
is sent to the central office line 1 later than the time of dialing.

When the transmission of the selection signal is completed, the exchange circuit 7 is set for a telephone call on the central office line, and when on-hook is detected thereafter, the CPU II determines that the telephone call on the central office line has ended and returns each section to a standby state.

Next, to explain the case of an extension call, an extension call is 1
Since this is done using the digit selection signal, off-hook is detected as shown in Figure 4(b), and 1 is detected as shown in Figure 4(b).
When the selection signal for the first digit is input, the next selection signal is not input, so when it is detected that a certain period of time t has elapsed since the input of the first digit, the CPU 11 determines that it is an extension call and starts the extension call operation. The telephone 3□ was called through the switching circuit 7 without performing DC connection as shown in Figure 4(e) and without sending a selection signal to station #a1 as shown in Figure 4(d). Connect with the extension telephone and set the extension call status until off-hook is detected.

Figures 5 and 6 show timing charts of the central line calling operation and the extension calling operation when a tone signal is added, and Figures 5 (a) to (d) are the timing charts of Figures 3 (a) to (d). Corresponds to
FIGS. 6(a) to (d) correspond to FIGS. 4(a) to (d). The tone signals shown in Fig. 5(e) and Fig. 6(e) are based on the fact that when off-hook is detected, DC connection has not yet been established, so the tone signal is not transmitted from the station. This tone signal is transmitted through the handset from the time the telephone receiver is picked up until the first digit selection signal is input as a 400 Hz pseudo tone signal, which is the same as the central line dial tone. The user can hear the dial tone and check the operation.

If the telephone set 31 is of a tone dial (PB) type, the dial pulse detection circuit 8. It goes without saying that .

In addition, extension calls are made using a selection signal of one digit, but selection signals of two or more digits may also be used. Depending on the input of
) Of course, it is necessary to determine whether the call is a call or not.

[Effects of the Invention] The present invention provides a telephone terminal device configured as described above,
A sending means for sending out a selection signal to the central office line, a hook state detection means for detecting the 7-touch state of the telephone, a selection signal detection means for detecting a selection signal from the telephone, and a DC circuit for connecting the return line DC circuit. A closing means and a storage means for storing a selection signal from the telephone, the selection signal from the telephone detected by the selection signal detection means is stored in the storage means, and the hook state detection means detects off-hook. After that, if the selection detection means detects the next selection signal within a certain period of time from the detection of the selection signal of the last digit of the number of digits corresponding to the local operation, the DC connection means is operated and stored in the storage means. The selected selection signal data is sent to the central office line via the sending means, and if the selection detection means does not detect the next selection signal within the certain period of time, the DC connection means performs direct current connection and sending means. Since it is equipped with a control means that regulates the selection signal data transmission by and sets local operation,
Local operations such as making external calls and making internal calls can both be performed using the same operating method, and without the need for ``0'' calls as before.
``It has the advantage that it does not require any operation to make a call, direct current connection of the office line when making an extension call, or transmission of a selection signal to the office.

[Brief explanation of drawings]

FIG. 1 is a circuit configuration diagram of an embodiment of the present invention, FIG. 2 is a 70-chart for explaining the operation of the same as above, and FIGS. 3, 4, 5, and 6 are for explaining the operation of the same as above. Timing chart,
Figure 7 is a basic connection diagram of telephone terminal equipment, Figures # & 8, and Figure 9.
The figure is a 70-chart for explaining the operation procedure of the conventional example, and FIGS. 10 and 11 are timing charts for explaining the same operation. 1... central line, 2. -2. ...extension, 3. ~3.・・・
・Telephone, 4... Incoming call detection circuit, 5... DC closing circuit, 6... Dial output circuit, 7... Exchange circuit, 8
1-8. . . . dial pulse detection circuit, 9 . . . ringing signal generation circuit, 10 . . . tone signal generation circuit, 11.
...CPU, 12...Memory. Agent Patent Attorney Ishi 1) Head 7 yen, Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 1o Figure 11

Claims (2)

[Claims] (1) Connect the telephone to the central office line, make an outside call, and
A telephone terminal device that performs a local operation such as an extension call using a selection signal of a predetermined number of digits from a telephone set, comprising a sending means for sending a selection signal to a central office line, a hook state detection means for detecting a hook state of the telephone set, and a telephone set. a selection signal detection means for detecting a selection signal from the telephone, a DC connection means for connecting a direct current circuit of the office line, and a storage means for storing a selection signal from the telephone, and the selection signal detection means detects the selection signal from the telephone. The selection signal from the telephone set is stored in the storage means, and after the hook state detection means detects off-hook, the selection detection means detects the selection signal within a certain period of time from the detection of the selection signal of the last digit of the number of digits corresponding to the local operation. When the next selection signal is detected, the DC connection means is operated and the selection signal data stored in the storage means is sent out to the central office line via the sending means, and the selection detection means is activated within the fixed time period. 1. A telephone terminal device comprising control means for setting a local operation by restricting DC connection by the DC connection means and transmission of selection signal data by the sending means when the selection signal is not detected. (2) After the hook state detection means detects hook-off of the telephone, a pseudo dial tone is sent to the telephone until a selection signal of the number of digits corresponding to the local operation is detected. Telephone terminal device according to scope 1.