JPH0923462A - Telephone device and transmission method - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a telephone device that can automatically connect to an external line or an internal line without providing an external line button and an internal line button on an operation unit. [Structure] The key input unit 1 which is an operation unit for inputting the destination number and the number of digits of the input destination number are discriminated, and the destination number is selected from the outside line, extension line or transceiver line according to the number of digits. Control unit 2 that automatically selects the outgoing line
3 and 3. At this time, the control unit 23
Compares the numerical value preset in the ROM 25 with the digit number of the input destination number, and if the digit number is smaller than the numerical value, the call is sent to the extension line or transceiver line,
If the number of digits is more than the numerical value, the call is sent to the outside line.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone device and a calling method thereof.

[0002]

2. Description of the Related Art There are two types of calling methods for telephone devices: divided calling and batch calling. With split call, the number to dial is 1
This is a method of sending digits to the communication line. What is batch transmission?
This is a method of collectively sending dialed numbers to a communication line. In the former case, the method is often applied to wired telephone devices, and after going off-hook, the numbers are input digit by digit using the dial buttons. On the other hand, in the latter case, by a method that is often applied to mobile phone devices, a number is input using a dial button and then a call button is operated to make a call collectively. Then, a telephone device such as a local telephone device or a so-called parent-child telephone used at home is connected to an outside line, that is, a public network to talk to the telephone device of the other party,
You can talk to other telephone devices in the premises or at home by connecting to the extension. Switching between the outside line and the extension line is
For example, "0" after picking up the handset and off-hook
It is known that when the number is input, the line is switched to the outside line, and when the number other than “0” is input, the line is transmitted.
Another method is to make an outside call when making a normal call, and make an extension call when operating an extension button and then dialing. In case of batch call, for example, if you press the call button after entering the number, it will be an outside line call,
If you press the extension button after entering the number, you can make an extension call.

[0003]

SUMMARY OF THE INVENTION By the way, cordless telephone devices such as cordless telephones and PHSs, which have been remarkably popularized recently,
(Personal Handyphone System) A mobile phone device such as a terminal is required to be small in size, light in weight and low in price. However, if the outside line button and the inside line button are provided in addition to the dial button, the call button, and the like as in the conventional case, the number of buttons on the operation unit is reduced even if the circuit, the speaker, the microphone, and the like are made smaller and lighter. In many cases, there is a problem that it becomes an obstacle to downsizing, weight reduction and price reduction of the whole. Further, when an external line button and an internal line button are not provided but a button different from the dial button is operated at the time of making a call, there is a problem that a connection error is likely to occur because the operation is complicated. SUMMARY OF THE INVENTION An object of the present invention is to provide a telephone device that can automatically connect to an outside line or an extension line without providing an outside line button and an extension line button on an operation unit, and a calling method therefor.

[0004]

According to a first aspect of the present invention, an operating means for inputting a destination number and a digit number of the destination number input by the operating means are discriminated, and the digit number is determined. According to the configuration, a selection unit for selecting a line for transmitting the destination number from a plurality of different lines, and a transmission unit for transmitting the destination number for the line selected by the selection unit are provided. . At this time, when a plurality of different lines are a public line and a private line, the predetermined number set in advance is compared with the number of digits of the entered destination number, and if the number of digits is smaller than the predetermined number, May select a private line, and if the number of digits is equal to or greater than a predetermined value, a public line may be selected. Further, at this time, when a plurality of different lines are a public line and a direct line, the predetermined number set in advance is compared with the number of digits of the input destination number, and the number of digits is smaller than the predetermined value. In this case, a direct line may be selected, and if the number of digits is a predetermined value or more, a public line may be selected.

According to a fourth aspect of the present invention, in a calling method of a telephone device for transmitting a destination number to any of a plurality of different lines, a plurality of different lines depending on the number of digits of the input destination number are used. Select the line from which to send the other party's number and make the call. At this time, when a plurality of different lines are a public line and a private line, the predetermined number set in advance is compared with the number of digits of the entered destination number, and if the number of digits is smaller than the predetermined number, May select a private line, and if the number of digits is equal to or greater than a predetermined value, a public line may be selected. Further, at this time, when a plurality of different lines are a public line and a direct line, the predetermined number set in advance is compared with the number of digits of the input destination number, and the number of digits is smaller than the predetermined value. In this case, a direct line may be selected, and if the number of digits is a predetermined value or more, a public line may be selected.

[0006]

In the invention according to claim 1 or 4, the line for transmitting the input destination number is selected from a plurality of lines that differ depending on the number of digits of the input destination number. Therefore, it is not necessary to provide an operation unit for selecting a plurality of different lines. Also, compare the preset number set in advance with the number of digits of the entered destination number, and if the number of digits is less than the prescribed value, call the private line (extension) and check the number of digits. If the number is equal to or more than the value, if the call is sent to the public line (outgoing line call), it is possible to automatically switch to the outside line call or the inside line call without providing the outside line button and the inside line button on the operation unit.
Furthermore, it compares the preset value set in advance with the number of digits of the entered destination number, and if the number of digits is less than the prescribed value, the call is sent directly to the communication line (direct communication call) and the digit If the number is more than the specified value, the call is sent to the public line (external line call), and the external line call or direct communication call is automatically switched without providing the external line button and the direct communication button on the operation unit. be able to.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A PHS (Personal Handyphone System) according to an embodiment of the present invention will now be described with reference to FIGS.
The telephone device will be described as an example. In PHS, the modulation / demodulation method is π / 4 shift QPSK, and the access method is 4-channel multiplexed TDMA / TDD (Time Divisio).
n Multiple Access / Time Division Duplex).
In TDMA, broadband communication is performed by one radio carrier using the entire system bandwidth, and 625 μs obtained by dividing a frame having a time period of 5 ms into eight equal slots is provided with transmission / reception slots for four channels. In the PHS communication control method, when communicating via a base station,
In addition to a communication carrier that carries a voice signal, a control carrier that carries a control signal is provided, and a transmission / reception slot is used to establish the control carrier when a call is made or received. On the other hand, when communicating directly between PHS terminals (slave units) without going through the base station, a control channel is not provided, an empty slot of the communication carrier is detected, and connection control for outgoing and incoming calls and telephone calls are made on the same slot. To do.

A system environment using the PHS terminal will be described with reference to FIG. Any PHS terminal (PS)
Reference numeral 101 denotes a public network 3 which is an outside line via a home base station 201 which is a parent device as a child device of a parent-child telephone in a house.
01 (public line) or this home base station 201
Another PHS terminal 10 in the same house via (private line)
2 can be extension-connected. In addition, the PHS terminal 10
Reference numeral 1 denotes a mobile phone outdoors, which is a public base station (CS) 202 within the wireless zone of the public base station 202.
And a plurality of other base stations (not shown) that are connected to the public network 301 via the integrated base station 302, or are housed in the same wireless zone and have the system call code of the same self-employed base station. The PHS terminal 103 can be connected as a (direct line) transceiver using a communication carrier for direct communication. Further, the PHS terminal 101 is connected to the public network 301 through the house base station 203 and the private branch exchange (PBX) 303 which are housed as a private mobile phone in the business office, or the private branch exchange 303.
It is possible to make an extension connection to the PHS terminal 104 accommodated in another office base station 204 in the same office via (private line).

As shown in FIG. 2, the PHS terminal is provided with a key input section (operation means) 1, a speaker 2, a microphone 3, a display section (display means) 4 and an antenna 5. The key input unit 1 has a dial button 11 and a call button 12 that is pressed when making a call.

FIG. 3 is a block diagram of the system of the PHS terminal, showing the internal configuration of the key input unit 1 and the like and the circuit unit 6 connected to them. The transmission / reception unit 21 is composed of an antenna switch for distributing transmission / reception, a frequency conversion unit having a PLL synthesizer, a modem for performing modulation / demodulation for connecting to a communication line, etc. (none of which is shown). On the reception side of the frequency converter, the 1.9 GHz band RF signal input from the antenna 5 through the antenna switch is mixed with the local oscillation signal of a predetermined frequency output from the PLL synthesizer to form an IF signal near 1 MHz. Convert frequency. On the transmission side of the frequency conversion unit, the π / 4 shift QPSK modulated wave input from the modem is mixed with the local oscillation signal output from the PLL synthesizer to obtain 1.9 GHz.
The z-band RF signal is frequency-converted and supplied to the antenna 5 through the antenna switch. On the reception side of the modem, the IF signal from the frequency conversion unit is demodulated and separated into IQ data, which is transferred to the communication control unit 22 as a reception data string. On the transmission side of the modem, IQ data is created from the data transferred from the communication control unit 22, and the π / 4 shift QPS is created.
Modulates K and outputs it to the frequency converter.

The communication control section (transmitting means) 22 performs frame synchronization and slot data format processing. On the reception side of the communication control unit 22, one slot of data is extracted from the received data sequence transferred from the modem of the transmission / reception unit 21 at a predetermined timing, and a synchronization signal called a unique word is extracted from this data to create a frame. Synchronize. After descramble the control signal and the audio signal, the control signal is transferred to the control unit (selection means) 23, and the audio signal is transferred to the audio processing unit 24. On the transmission side of the communication control unit 22, a control signal is added to the audio signal transferred from the audio processing unit 24, scrambled, and then a unique word is added to create transmission data for one slot. Then, this transmission data is inserted into a slot at a predetermined position in the frame at a predetermined timing and transferred to the modem of the transmission / reception unit 22.

The voice processing section 24 is composed of a speech codec and a PCM codec (both not shown). The speech codec performs compression / expansion processing of digital data, and at the receiving side thereof, 32 kbps (4 bits) transferred from the communication control unit 22.
X8 kHz) ADPCM audio signal at 64 kbps
A PCM audio signal of (8 bit × 8 kHz) is decoded, expanded, and output to the PCM codec. On the other hand, on the sending side, the PCM sent from the PCM codec
The audio signal is encoded into an ADPCM audio signal, compressed, and transferred to the communication control unit 22. The PCM codec performs analog / digital conversion processing, and the receiving side thereof D / A converts the PCM audio signal sent from the speech codec and outputs the analog audio signal to the speaker 2. On the other hand, on the transmitting side, the analog audio signal input from the microphone 3 is A / D converted and the PCM signal is converted.
Output the audio signal to speech codec.

The ROM 25 stores an operation program executed by the control unit 23, data necessary for initialization processing, and the like. The RAM 26 temporarily stores data and the like processed by the control unit 23. The control unit 23
The entire apparatus is controlled based on the operation program, and connection processing is performed in response to a call command from the key input unit 1 or an incoming call from the partner terminal. In addition, the telephone number input at the time of making a call is supplied to the display unit 4 to be displayed, and the inputted telephone number is temporarily stored in the RAM 26 or a register (not shown) in the control unit 23 to make a call. It determines whether the line is an external line, an internal line, or a transceiver line, switches control carriers, and determines external / extensional data.

Next, a transmission method when a PHS terminal makes a call will be described with reference to FIG. Figure 4 shows PHS
6 is a flowchart of a transmission process of the control unit 23 in the terminal 101. When a telephone number is input from the key input unit 1 (step S1) and then the call button 12 is pressed (step S2), it is determined whether or not a control channel is established with the public base station 202. (Step S
3). When the control channel is established, it is determined whether or not the number of digits of the input telephone number is smaller than the numerical value N ₁ ("7" in this case) preset in the ROM 25 (step S4). ). When the number of digits is smaller than N ₁ , for example, when there are 6 digits such as “02- # 103”, a transceiver is transmitted to the PHS terminal 103 corresponding to this number existing in the same wireless zone ( Step S5). That is, an empty slot of a communication carrier assigned for transceiver communication is detected and transmitted. In step S4, when the number of digits is N ₁ or more, for example, 10 digits such as “0123-45-6789”, the outside line is formed using the slot of the control channel established with the public base station 202. Send (Step S
6). In this case, the public base station 202 transmits this number to the public network 301.

In step S3, the public base station 202
If the control channel is not established with the other public base station, it is determined whether the control channel is established with the business office base station 203 (step S7).
When the control channel is established, it is determined whether or not the number of digits of the input telephone number is smaller than the numerical value N ₂ (in this case "5") preset in the ROM 25 (step S8). ). When the number of digits is N ₂ or more, for example, when it is 10 digits such as “0123-45-6789”, “0” is added to the head of the input telephone number (step S9), and the establishment An outside line is transmitted to the private branch exchange 303 through the base station 203 with the number "00123-45-6789" (step S6). In this case, the private branch exchange 303 detects "0" added to the head of the telephone number and recognizes that the connection is an outside line. Therefore, the number "0123-45-6789" from which the added "0" is removed, that is, The telephone number input to the PHS terminal 101 is transmitted to the public network 301. If the number of digits of the input telephone number is smaller than N ₂ in step S8, for example, “# 10
When the number is 4 digits such as "4", the extension call is made to the PHS terminal 104 corresponding to this number existing on the premises (step S10). In this case, the PHS terminal 101
The number “# 104” transmitted from the office is the office base station 203
Is input to the private branch exchange 303 via the
03 and 204 are connected by a private branch exchange 303,
The number "# 104" is transmitted from the business office base station 204 to the PHS terminal 104.

In step S7, the business office base station 20
When the control channel is not established between the mobile station 3 and the other office base stations on the premises, it is determined whether or not the control channel is established between the home base station 201 and the home base station 201 (step S11). When the control channel is established, it is determined whether or not the number of digits of the input telephone number is smaller than the numerical value N ₃ (“2” in this case) preset in the ROM 25 (step S12). ). If the number of digits is smaller than N ₃ , for example, if it is a one-digit number, the PHS terminal 10 corresponding to this number is sent via the home base station 201.
An extension call is made to 2 (step S10). On the other hand, when the number of digits is N ₃ or more, for example, “0123-45-6
In the case of 10 digits such as "789", the home base station 2
The call is sent to the public network 301 via 01. After the calling process in steps S5, S6, and S10, the partner terminal responds to connect the line and start communication (step S12). In step S11,
When it is determined that the control channel has not been established with the home base station 201, communication via the base station is impossible, and therefore the out-of-service area is displayed and the process ends (step S13).

As described above, according to the above embodiment, the number of digits of the input telephone number is compared with the preset number and the number of digits of the input telephone number, and the number of digits is smaller than that number. In this case, an extension call or a transceiver call is made, and if the number of digits is equal to or more than that value, an outside call is made to automatically connect to an outside line or an extension line without providing the outside line button and the inside line button on the key input unit 1. be able to. Therefore, since the number of buttons of the key input unit 1 can be reduced, the overall size, weight and cost can be reduced, and at the time of making a call, all that is necessary is to input a telephone number and press the call button. It is possible to prevent an error in connection due to an operation error.

In the above embodiment, the numerical values N ₁ , N ₂ and N ₃ to be compared with the number of digits of the input telephone number are set as fixed values in the ROM 25 in advance.
A configuration may be adopted in which at least a part of the area of M26 is backed up by a battery, and the user can freely set the numerical values N ₁ , N ₂ , and N ₃ in the backed up area. In this case, the selected line can be set according to the environment of the system to which the PHS terminal is connected.

In the above embodiment, the case of making a call from a PHS terminal has been described, but the present invention is not limited to PHS terminals.
The present invention can be applied to all telephone devices that select a line to be transmitted from a plurality of different lines.

[0020]

According to the invention described in claim 1 or 4, a line for transmitting the input destination number from a plurality of lines which differ depending on the number of digits of the input destination number. Is selected, it is not necessary to provide an operation unit for selecting a plurality of different lines. Also, compare the preset number set in advance with the number of digits of the entered destination number, and if the number of digits is less than the prescribed value, call the private line (extension) and check the number of digits. If the number is equal to or more than the value, if the call is sent to the public line (outgoing line call), it is possible to automatically switch to the outside line call or the inside line call without providing the outside line button and the inside line button on the operation unit.
Furthermore, it compares the preset value set in advance with the number of digits of the entered destination number, and if the number of digits is less than the prescribed value, the call is sent directly to the communication line (direct communication call) and the digit If the number is more than the specified value, the call is sent to the public line (external line call), and the external line call or direct communication call is automatically switched without providing the external line button and the direct communication button on the operation unit. be able to. Therefore, since the number of buttons on the operation unit can be reduced, the overall size, weight and cost can be reduced, and at the time of making a call, it is only necessary to input the destination number and operate the call button. It is possible to prevent a connection error due to a mistake.

[Brief description of drawings]

FIG. 1 is a diagram showing a system environment using a PHS terminal in this embodiment.

FIG. 2 is a plan view showing an operation surface of the PHS terminal according to the embodiment of the present invention.

3 is a block diagram of a system of the PHS terminal in FIG.

FIG. 4 is a flowchart showing a calling method of the PHS terminal in this embodiment.

[Explanation of symbols]

 1 Key input part 2 Speaker 3 Microphone 4 Display part 5 Antenna 6 Circuit part 23 Control part

Claims (6)

[Claims] 1. An operation means for inputting a destination number and the number of digits of the destination number input by the operation means are discriminated, and the destination number is selected from a plurality of lines which differ according to the number of digits. A telephone device comprising: a selecting means for selecting a line for transmitting the call, and a calling means for transmitting the destination number to the line selected by the selecting means. 2. The plurality of different lines are a public line and a private line, and the selecting means compares a predetermined value set in advance with the digit number of the input destination number, The telephone according to claim 1, wherein the private line is selected when the number of digits is smaller than the predetermined value, and the public line is selected when the number of digits is greater than or equal to the predetermined value. apparatus. 3. The plurality of different lines are public lines and direct communication lines that are directly connected to each other, and the selecting means sets a preset predetermined value and the input destination number. Comparing with the number of digits, the direct communication line is selected when the number of digits is smaller than the predetermined value, and the public line is selected when the number of digits is more than the predetermined value. The telephone device according to claim 1. 4. A calling method of a telephone device for sending a destination number to any of a plurality of different lines, wherein the destination number is selected from the plurality of different lines according to the number of digits of the input destination number. A calling method characterized by selecting a line for sending a call. 5. The plurality of different lines are a public line and a private line, and a predetermined value set in advance is compared with a digit number of the input destination number, and the digit number is The calling method according to claim 4, wherein when the number of digits is smaller than a predetermined value, the call is sent to the private line, and when the number of digits is not less than the predetermined value, the call is sent to the public line. . 6. The plurality of different lines are public lines and direct communication lines that are directly connected to each other, and compare a predetermined value with a digit number of the input destination number. Then, when the number of digits is smaller than the predetermined value, the call is sent to the direct communication line, and when the number of digits is more than the predetermined value, the call is sent to the public line. The transmitting method according to claim 4.