JP2000324236A - Cordless telephone system and operating method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate transfer of a held line wire by calling all slave units, after depressing a function key when the location of the opposite party to which the held line wire is to be transferred is unknown. SOLUTION: The line wire call of a master unit is held, and a key matrix 12 or a function key that is separately prepared is depressed to perform a simultaneous calling. Thus, the calling commands of all slave units connected together with no cords are set, and then all slave units are designated to transmit the commands. When these commands are transmitted, the master unit is set in a holding extension calling state and calls all slave units connected to the master slave. If a hook switch 16 of the master slave is hooked on when an answer is received from a designated slave unit, the designated slave unit is called via a line wire. When the switch 16 is hooked off, the master-slave extension calling is carried out, and then the slave unit is connected to the extension to start the calling in an on-hook state of the master unit.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a cordless telephone device and a method of operating the same.

[0002]

2. Description of the Related Art A cordless telephone device comprises a master unit connected to a telephone line and a plurality of slave units cordlessly connected to the master unit. Are transmitted and received by radio waves. Therefore, both the parent device and the child device have a function of transmitting and receiving radio waves. Conventionally, in order for the base unit to connect the external line to the slave unit using the cordless telephone device during the outside line call, the external line during the call is held and the slave unit 1 is depressed by pressing a predetermined key. We called and connected.

[0003] More specifically, first, a base unit holds a line of an outside line during a call. With this hold operation, the other party on the outside line connected to the master unit can hear the hold sound. Next, in this suspended state, the master unit calls an arbitrary slave unit by pressing an arbitrary key designated in advance. An extension call is performed between the parent device and the child device by performing the extension capturing operation on the called child device side. In order to connect the held outside line to the slave unit, the master unit may be set to the on-hook state. Thereby, the slave unit and the outside line are connected.

[0004]

In such a conventional cordless telephone device, only one master unit can call a slave unit at a time. Therefore, when the location of the other party to be connected to the outside line is not known, it is necessary to sequentially call the slave units one by one, make an extension call with the slave unit, confirm the other party to be called, and make the outside line connection. SUMMARY OF THE INVENTION An object of the present invention is to provide a cordless telephone apparatus which can eliminate such an annoyance and can call a desired party by paging, and an operation method thereof.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a cordless telephone device having a base unit connected to an outside line and a plurality of slave units cordlessly connected to the base unit. The main unit is provided with a function key which can be operated during the hold to call all the sub units. The present invention also relates to a method of operating a cordless telephone device having a base unit connected to an outside line and a plurality of slave units cordlessly connected to the base unit, wherein the operation is performed while the outside line of the base unit is on hold. By providing a function key on the master unit to enable calling of all the slave units by doing, when any of the slave units responds to the call, when the hook state of the master unit is in the off-hook state, the master unit responds to the call. It is characterized in that an extension call is performed between the slave unit and the master unit.

Further, the present invention relates to a method of operating a cordless telephone device having a base unit connected to an outside line and a plurality of cordless units connected cordlessly to the base unit, and A function key is provided on the master unit that allows all the slave units to be called by operating the base unit. When any of the slave units responds to the call, when the hook state of the master unit is in the on-hook state, a call is made. Is characterized in that the slave unit that responds to the call is an outside-line call via the master unit.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 2 is a block diagram showing a base unit of the cordless answering machine according to the embodiment of the present invention. FIG. 3 is a block diagram of the slave unit. Master device 10
Has a CPU 11 for controlling the entire master unit.
PU11 has a key matrix 12, an LCD display 13,
ROM 14, message recording unit 15, hook switch 1
6 is connected. Here, the key matrix 12 has an answering key, a play key, a hands-free key, a registration key, a numeric keypad, and the like, and inputs various information.

The LCD display unit 13 displays various information such as the telephone number of the received caller. The ROM 14 records various information such as the telephone number of the received caller, and has a memory function as a telephone directory. The message recording unit 15 records a response message in the answering machine mode and a message from the received caller. Hook switch 16
Determines whether the handset is placed on the base unit.

Reference numeral 17 denotes a line terminal to which an incoming call detecting circuit 18 for detecting a ringer signal is connected.
Is connected to the CPU 11. 19 is a line terminal 17
A rectifier circuit for preventing the voltage polarity reversal from affecting the inside of the telephone, a DP transmission circuit 20 for connecting and disconnecting a line, a speech network IC 21 for performing 2-wire to 4-wire conversion, and a line terminal 17 Is a CP through these circuits
Connected to U11. Speech network IC2
1, a receiver 22, a microphone 23, a speaker 24, and a caller IDIC 25 are connected.
The output of 5 is connected to the CPU 11.

The caller IDIC 25 is a circuit for determining the telephone number of the received caller. Further, the speech network IC 21 and the CPU 11 are connected to an RF module 27 via a compander IC 26 for performing wireless communication with the slave unit, and an antenna 28 is connected to the RF module 27. In the base unit 10 configured as described above, when the answering machine is set to the answering machine mode by operating the answering key of the key matrix 12, it is possible to automatically answer the incoming call and record the message from the caller. , The telephone number of the caller sent by the number display service (calling telephone number display service) can be stored.

A slave 30 shown in FIG. 3 has a CPU 31 for controlling the entire slave, and the CPU 31
Module 33 and compander IC for wireless communication with
The antenna 32 is connected to the RF module 33. The compander IC 34 has an audio output unit connected to a speaker 36 via an amplifier 35 and a microphone 37 connected to an audio input unit. Further, the CPU 31 has a key matrix 38 for inputting information in the same manner as the main unit 10, and an LCD display unit 3 for displaying information.
9. ROM 40 for storing information is connected.

Further, in the cordless telephone device of the present invention, a function key (not shown) is provided on the base unit 10 for enabling all the sub units 30 to be called by operating the main unit 10 while the external line call is on hold. This function key may be configured as one of the key matrices 12. That is, when a function key for simultaneous calling is pressed from the key matrix 12, the speech network IC 21 and the compander IC 26 are transmitted via the CPU 11.
And the paging signal from the RF module 27
0 is transmitted.

FIG. 1 is a flow chart for explaining a method of operating a simultaneous call of a cordless telephone device according to the present invention. First, it is assumed that cordless handsets 1, 2, and 3 are cordlessly connected to the master unit. Put the outside line call of the main unit on hold,
When a key is pressed to call each of the slave units 1, 2, and 3 in step 101, a normal operation of calling the slave unit is started. In step 102, the slave unit 1 is set. In step 103, the slave unit 2 is set. In step 104, it is determined whether or not each of the slaves 3 has been called. If there is a call for the slave 1, a call command for the slave 1 is set in step 105. If there is a call for the slave unit 2, a call command set for the slave unit 2 is performed in step 106. Further, in the case of calling the slave unit 3, a calling command set of the slave unit 3 is performed in step 107.

Here, in the cordless telephone apparatus of the present invention, when a function key in the key matrix 12 for paging or a separately provided function key is pressed, it is determined in step 108 whether or not paging is performed.
When the function key is depressed and it is determined that the simultaneous call is to be performed, at step 109, a command for calling all the handset units for calling all the handset units 1, 2, and 3 is set.
Next, all slave units are specified (step 110), and the process proceeds to command transmission processing (step 111).

When this command transmission process is performed, the parent machine transits to the hold extension calling state (step 112), and all the slaves connected to the master are called. If there is a response from the designated handset (step 113), the form of the call differs depending on the hook state of the base unit.

If the master unit is off-hook in step 114, an extension call is performed between the master unit and the designated slave unit (step 116). On the other hand, if the call is on-hook in step 114, the communication between the designated slave unit and the outside line is started (step 117). Usually, step 114
In, the base unit performs a parent-child extension call in the off-hook state, and operates the base unit on-hook so that the slave unit is connected to an outside line. On the other hand, if there is no response from the designated slave unit in step 113, the command transmission process is continued for a certain period of time, and it is determined whether the number of command transmissions or the command transmission time exceeds a specified number or a specified time. (Step 115). If the specified number of times or the specified time is exceeded, the calling is stopped (step 11).
8), the state transits to the hold state of the master unit (step 119).
If the command does not exceed the specified number of times or the specified time in step 115, the process returns to step 113 again and waits for a response from the designated slave unit.

As described above, according to the present invention, a function key for simultaneously calling a slave unit is provided in the master unit, and when an outside line is received, this function key is pressed to call all the slave units, and the slave responds to the call. An operation is performed so as to connect an extension call or a held outside line call between the handset and the base unit to the handset that responded to the call.

[0018]

As described in detail based on the above embodiments, in the present invention, when it is not possible to know where the other party to which the held outside line is to be transferred by pressing a separately provided function key, Can be transferred by calling. Further, depending on the hook state of the master unit, it is possible to make an extension call between the master unit and the slave unit or to transfer the held outside line to the slave unit.

[Brief description of the drawings]

FIG. 1 is a flowchart illustrating a method of operating a cordless telephone device according to the present invention.

FIG. 2 is a block diagram showing a configuration of a base unit of the cordless telephone device according to the present invention.

FIG. 3 is a block diagram showing a configuration of a slave unit.

[Explanation of symbols]

 11 CPU 12 Key Matrix 21 Speech Network IC 26 Compander IC 27 RF Module 33 RF Module 34 Compander IC 31 CPU

Claims (3)

[Claims] 1. A cordless telephone device having a master unit connected to an outside line and a plurality of slave units cordlessly connected to the master unit. A cordless telephone device provided with a function key on the base unit, the function key being capable of calling the sub unit. 2. A method of operating a cordless telephone device having a base unit connected to an outside line and a plurality of cordless handsets connected to the base unit cordlessly, wherein the operation is performed while the outside line of the base unit is on hold. A function key is provided on the base unit to enable calling of all the base units, and when any of the base units responds to the call, when the hook state of the base unit is in the off-hook state, the child responding to the call A method of operating a cordless telephone device, wherein an extension call is performed between a mobile phone and the base phone. 3. A method of operating a cordless telephone device having a base unit connected to an outside line and a plurality of cordless units connected cordlessly to the base unit, wherein the operation is performed while the outside line of the base unit is on hold. A function key is provided on the base unit so as to enable calling of all the base units, and when any of the base units responds to the call, when the hook state of the base unit is in the on-hook state, the child responding to the call A method for operating a cordless telephone device, wherein the device is connected to an outside line via the master device.