JP2009088835A - Communication line switching and connecting device, and communication system provided with the device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a communication system capable of greatly reducing speech communication cost by using a cellular phone line network well because a recent cellular phone company provides speech communication using its cellular phone line network, that is, a charge discount service for making call charge free in speech communication between cellular phones belonging to the same company. <P>SOLUTION: A company adopts a communication system provided with a control means for performing hand-free control of the following cellular phone, wherein an internal telephone, an IP line and the cellular phone as a relay terminal are subjected to one-to-one voice connection in a switchable manner. When an employee is made to have a cellular phone belonging to the same company of the portable relay terminal, the employee can communicate with the company by using the line network of the cellular phone and can communicate with the outside by using the line network of the cellular phone and the IP line network without directly making a call to the outside from the cellular phone. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a communication line switching connection device that connects a mobile phone and two or more wired telephone lines, typically a private branch exchange and a public line, in a switchable manner, and a communication system including the device.

  Conventionally, an LCR system that selects and connects a fixed line with a low charge according to a connection destination is known.

Japanese Patent Laid-Open No. 10-178503

By the way, a recent mobile phone company is provided with a charge discount service for making a call charge free for calls using the mobile phone network, that is, calls between mobile phones of the same company.
Therefore, if all the telephones used in the company are switched to the above-described mobile telephones, the communication cost for contacting employees becomes only the basic fee, which can be greatly reduced.
However, if the mobile phone terminal is connected to a mobile phone or a fixed phone of another company or makes an international call, the communication cost increases.
Also, if all in-house telephones are switched to the above-mentioned mobile telephones, the location of the mobile telephones is not fixed, so when you want to make a phone call, you will not find it and you can easily expect inconvenience. The

  In order to solve the above problems, an object of the present invention is to provide a device for voice connection to a mobile phone line, a general phone line, or a private branch exchange, and a communication system including the device.

According to the first aspect of the present invention, there is provided one-to-one voice connection between two or more telephone lines and a mobile phone as a relay terminal so that switching is possible, and control means for hands-free control of the mobile phone is provided. This is a characteristic communication line switching connection device.
The invention of claim 2 is the communication line switching connection device according to claim 1,
A communication line switching connection device characterized in that two or more wired telephone lines are a private branch exchange and a general telephone line.

The invention of claim 3 is the communication line switching connection device according to claim 2,
A communication line switching connection device characterized in that when an incoming call is received by a mobile phone, it is determined whether it is an external line or an internal line. is there.

  According to a fourth aspect of the present invention, in the communication line switching connection device according to any one of the first to third aspects, the status of the mobile phone as a relay terminal is monitored to determine whether the status is standby or talking, and When the remaining capacity of the mobile phone is lower than a predetermined level, the communication line switching connection device is provided with power supply means for supplying power from the power supply unit.

  The invention of claim 5 is a communication line switching connection device according to any one of claims 1 to 4, a mobile phone, a private branch exchange and a general telephone line as a relay terminal connected to the communication line switching connection device by voice, A communication system comprising a mobile phone as a transmission and reception terminal.

  According to the communication system of the present invention, a mobile phone network and a general phone network can be used together.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an explanatory diagram of an entire communication system 1 according to an embodiment of the invention.
Reference numeral 3 denotes a communication line switching connection device (= main device), which is a mobile phone for connecting to a mobile phone (= portable relay terminal) 5 as a relay terminal, as shown in FIG. A connection connector 6, an IP line port (= FXS port) 8 for connection to an IP line router 7 of an IP line that is one of public lines, and a PBX connection port for connection to a private branch exchange (= PBX) 9 10 is provided and is connected to the portable relay terminal 5, the IP line router 7, and the PBX 9 through a cable.
The main unit 3 is also provided with an RS232C port 11 for computer connection.
An employee outside the company carries a mobile phone 13 of the same mobile phone company as the mobile relay terminal 5.
The communication system 1 of the company is configured as described above.

Next, a specific configuration of the main unit 3 will be described with reference to FIG.
Reference numeral 15 denotes an information processing unit (CPU) which is the heart of the main unit 3 and controls all operations of the main unit 3.
Reference numerals 17 and 19 denote an analog voice signal line for sending out a voice signal (= analog signal) from the mobile relay terminal 5 to the IP line router 7 and the PBX 9 and a voice signal from the IP line router 7 and the PBX 9 to the mobile relay terminal 5. The analog audio signal lines to be sent out are shown in FIG. Also provided is a call control I / F 21 constituted by an echo cancellation DSP circuit I / F (interface) that controls the call by removing the echo component of the voice or adjusting the volume according to the type of the connected external device. ing.
Reference numerals 23 and 25 denote tone decoders, which read PB signals from the portable relay terminal 5 and sent to the portable relay terminal 5 respectively sent on the analog audio signal line.
Reference numeral 27 denotes a voice synthesis circuit, and a voice announcement synthesized by the circuit 27 is sent out to the mobile relay terminal 5.

Reference numerals 29 and 31 denote a telephone line circuit control I / F (interface) and a pseudo-line circuit control I / F (interface), respectively. Under the control of these interfaces 29 and 31, transmission / reception processing on the IP line and extension side is performed. Do.
In addition, the IP line and the extension line are also voice-connected by a call control I / F 33 constituted by a MODEM / DTMF circuit I / F (interface).
In addition to the mobile phone control I / F (interface) 35 (= USB host controller I / F) 35, the UART communication between the mobile relay terminal 5 and the information processing unit 15 can be selected according to the type of the mobile relay terminal. Although a line 37 is also provided, hereinafter, a case where a mobile phone connection I / F 35 is used for transmission and reception of signals with the mobile relay terminal 5 will be described.

Reference numeral 39 denotes a power supply unit, and power is supplied from the power supply unit 39 into the main body 3. The power supply unit 39 is also connected to a power supply line 41 that supplies power to the mobile relay terminal 5 via a mobile phone charging I / F (interface) 43.
Reference numeral 45 denotes a memory in which data for determining the timing of power supply is recorded.

Next, the operation of the main device 1 in each process will be described. Each program is for realizing processing using the information processing unit 15.
A. Cell phone incoming IP line call processing (cell phone → mobile relay terminal → external line (cell phone, fixed phone, overseas phone of another mobile phone company)) (see Fig. 3)
A processing operation in the case where a telephone call is made from the mobile phone 13 possessed by an employee outside the company to the other party via the mobile relay terminal 5 will be described.
First, an incoming signal from the mobile relay terminal 5 is received by the mobile phone control I / F 35, a hook control signal for off-hooking is sent, and the mobile relay terminal 5 is off-hooked. In addition, a voice announcement “Please give an outside line number” is created by the voice synthesis circuit 27 and is uttered by the mobile phone 13 via the mobile relay terminal 5.

When the tone decoder 23 reads the PB signal, which is the outside line number pressed by the employee, as a dial signal, the outside line is determined and transmission processing is performed. That is, the telephone line circuit control I / F 29 sends a hook signal and a dial signal, and sends a DT signal (a dial tone) to the mobile relay terminal 5 to notify the mobile phone 13. When a response signal notifying that the other party's telephone has been off-hooked is received, a call is made possible under the control of the call control I / F 21. Further, by receiving the call end signal, the end of the call is detected, and the call is disabled by the control of the call control I / F 21.
In the above communication mode, the mobile telephone line network of the mobile relay terminal 5 and the IP line network are used. Therefore, considering only the call charge apart from the basic charge, if the call charge of the mobile phone network is free, only the call charge of the IP line network is charged.

B. Mobile incoming extension connection processing (mobile phone → mobile relay terminal → extension phone) (FIG. 4)
A processing operation in the case where the mobile phone 13 held by an employee outside the company is placed on the extension telephone via the mobile relay terminal 5 will be described.
A voice announcement saying “please give me an outside line number” is created and uttered by the mobile phone 13 via the mobile relay terminal 5. Up to this point, the process is the same as that for A.
Next, if a signal is not received even after waiting for a certain period of time from the mobile relay terminal 5, it is determined that it is an extension, and extension connection processing is performed. That is, an IR signal (calling signal) is sent out to the pseudo circuit control I / F 31 and a DT signal is sent out to the mobile phone 13 via the mobile relay terminal 5. When a response signal notifying that the extension telephone has been off-hooked is received, a call-enabled state is set under the control of the call control I / F 21. Further, by receiving an end call signal, the end of the call is detected, and the call is disabled by the control of the call control I / F 21.
In the above communication mode, the mobile telephone network of the mobile relay terminal 5 and the extension network are used. Therefore, considering only the call charge apart from the basic charge, if the call charge of the mobile phone network is free, the call charge is free.

C. IP line extension connection processing (external → IP line → extension telephone) (Figure 5)
Next, the processing operation when a business partner calls an extension telephone via an IP telephone network will be described.
An incoming signal from the IP line router 7 is received by the telephone line circuit control I / F 29 and a hook control signal is sent out through the IP line port 8 to cause the IP line router 7 to go off-hook. Further, the IR signal is sent out to the PBX 9 through the pseudo circuit I / F 31. When a response signal notifying that the extension telephone has been off-hooked is received, a call-enabled state is set under the control of the call control I / F 33. In addition, by receiving the call end signal, the end of the call is detected, and the call is disabled by the control of the call control I / F 33.
The use of such a call form is also possible.

D. Cell phone line outside line transmission processing (extension phone → cell phone line → cell phone) (FIG. 6)
Next, a processing operation when an employee in the company places a call from an extension telephone to the employee's mobile phone 13 or the like via the mobile phone network will be described.
When the outgoing signal is received informing that the extension telephone is off-hook, a hook control signal is sent from the mobile phone control I / F 35 to the mobile relay terminal 5 to cause the mobile relay terminal 5 to go off-hook and read by the tone decoder 25. The dial signal is sent out and dialed. Further, the DT signal is sent from the pseudo circuit control I / F 31 to the extension telephone via the PBX connection port 10 and the PBX 9 to be notified. When a response signal notifying that the mobile phone 13 has been off-hooked is received, a call-enabled state is set under the control of the call control I / F 21. In addition, by receiving an end call signal from the PBX 9, the end of the call is detected, and the call is disabled by the control of the call control I / F 21.
In the above communication mode, the extension network and the mobile phone network of the mobile relay terminal 5 are used. Therefore, considering only the call charge apart from the basic charge, if the call charge of the mobile phone network is free, the call charge is free.

E. IP line outside line transmission processing (extension telephone → IP line → cell phone of another mobile company, etc.) (see FIG. 7)
Next, the processing operation when an employee in the company calls from an extension telephone to a business partner company will be described.
Upon receipt of the outgoing signal informing that the extension telephone is off-hook, the hook signal is sent from the telephone line circuit control I / F 29 to the IP line router 7 via the IP line connection port 8 to be off-hooked, and from the voice signal line. Send out a PB signal. In addition, a DT signal (radiation tone) is sent from the pseudo circuit control I / F 31 to the extension telephone via the PBX connection port 10 and the PBX 9 to be notified. When a response signal notifying that the other party's telephone has been off-hooked is received, a call is made possible under the control of the call control I / F 33. Further, by receiving an end signal from the PBX 9, the end of the call is detected, and the call is disabled by the control of the call control I / F 33.
In the above communication mode, an extension network and an IP telephone line network are used. Accordingly, considering only the call charge apart from the basic charge, the call charge is reduced as compared with the case of using the NTT line.

Next, the charging process operation will be described.
The memory 45 stores the capacity of the mobile phone 13, the standby voltage, the telephone call voltage, and the bottom limit allowable capacity data. The information processing unit 15 stores the telephone line circuit control I / F 29 and the pseudo line circuit control I / F. Status information indicating whether the mobile phone 13 is in a call is sequentially acquired from the (interface) 31.
A power supply unit 39 in the main unit 3 supplies necessary power to each part of the apparatus, and is also connected to the mobile phone connector 6 by a power supply line 41.

When the fully charged state is taken as 100%, the power consumption corresponding to the status voltage state is subtracted sequentially, and the charge timing comes when the capacity falls below the bottom limit capacity. The mobile phone charging I / F 43 is controlled to turn on the power supply line 41 to supply power to the mobile phone 13.
If battery voltage drop information can be acquired from the mobile phone 13, the charging timing may be corrected using the information.

  The program and each operation parameter used for the above processing can be upgraded or changed by a computer (PC) connected to the RS232C port.

Although the embodiment of the present invention has been described above, the specific configuration of the present invention is not limited to the above-described embodiment, and even if there is a design change within a range not departing from the gist of the present invention. Included in the invention.
For example, in the above embodiment, voice exchange between the main unit 3 and the mobile phone 13 is performed via the connector of the mobile phone 13, but may be connected to an earphone.
Furthermore, mobile phones used as relay terminals include not only general mobile phones provided by companies such as NTT Docomo and Softbank, but also PHS.

  If a communication system including the main device of the present invention is constructed, the call charge can be greatly reduced.

1 is an overall view of a communication system according to an embodiment of the present invention. It is a block diagram of the main body apparatus of the communication system of FIG. It is operation | movement explanatory drawing of a mobile incoming IP line transmission process. It is operation | movement explanatory drawing of a mobile call extension extension connection process. It is operation | movement explanatory drawing of an IP line extension connection process. It is operation | movement explanatory drawing of a mobile telephone line outside line transmission process. It is operation | movement explanatory drawing of an IP line outside line transmission process. It is operation | movement explanatory drawing of a portable charging process.

Explanation of symbols

1. Communication system 3. Main unit 5. Mobile relay terminal 6. Mobile phone connection connector 7. IP line router 8. IP line port 9. PBX
DESCRIPTION OF SYMBOLS 10 ... PBX connection port 11 ... RS232C port 13 ... Mobile phone 15 ... Information processing part 17, 19 ... Voice signal line 18, 20 ... Amplifier circuit 21 ... Call control I / F (Echo cancel DSP circuit) I / F)
23, 25 ... tone recorder 27 ... voice synthesis circuit 29 ... telephone line circuit control I / F 31 ... pseudo-line circuit output I / F
33 ... Call control I / F (MODEM / DTMF circuit I / F)
35 ... Mobile phone control I / F (USB host controller I / F)
37 ... UART communication line 39 ... Power supply unit 41 ... Power supply line 43 ... Mobile phone charging I / F 45 ... Memory

Claims (5)

  A communication line switching connection characterized in that two or more telephone lines and a mobile phone as a relay terminal are switchably connected in a one-to-one voice connection and control means for hands-free control of the mobile phone is provided. apparatus. In the communication line switching connection device according to claim 1,
2. A communication line switching connection device, wherein two or more wired telephone lines are a private branch exchange and a general telephone line. In the communication line switching connection device according to claim 2,
A communication line switching connection device characterized in that when an incoming call is received by a mobile phone, it is determined whether it is an external line or an internal line.   4. The communication line switching connection device according to claim 1, wherein the mobile phone as a relay terminal monitors whether the status of the mobile phone is in a standby state or a call, calculates power consumption of the mobile phone, and A communication line switching connection device, comprising: power supply means for supplying power from a power supply unit when the remaining capacity is lower than a predetermined level.   5. The communication line switching connection device according to claim 1; a mobile phone, private branch exchange, and general telephone line as a relay terminal connected by voice to the communication line switching connection device; A communication system comprising a telephone.

Images