JP4524488B2 - Digital cordless telephone system - Google Patents

Description

  The present invention relates to a digital cordless telephone system, and more particularly to a digital cordless telephone system in which a cordless slave that receives a call from another slave during an extension call has a transfer function.

  The cordless telephone system is a telephone system that connects a master telephone device connected to a public telephone network or the like and a cordless slave by wireless communication. Mobile phone and PHS (Personal Handy phone) is that the main phone device (also called the main phone) is installed by the subscriber, and the cordless handset can be used only in the home or premises where the main phone is installed. It is different from mobile communication such as System).

  Initially, the rental service was provided by the former Nippon Telegraph and Telephone Public Corporation, and since the liberalization of sales of cordless telephones in 1987, it has spread rapidly. In Japan, analog systems have been the mainstream for a long time, but 2.4 [GHz] digital systems were sold by various companies in 2006 and are becoming mainstream. The digital method has a feature that it is difficult to eavesdrop on, coupled with the adoption of the frequency hopping method.

FIG. 9 shows a system configuration diagram of a digital cordless telephone system (related technology) that is generally known conventionally. In FIG. 9, the telephone device 201 has a configuration in which a main body side cordless machine 202 which is a parent machine function of a cordless child machine is incorporated in addition to a normal telephone function including a handset 207 or a telephone function with a facsimile function. . The cordless handset 205 and the door phone (cordless handset) 206 communicate with the handset 207 or the outside line (the partner station 208) via the main body side cordless handset 202 having a function as a base unit wirelessly.
In such a digital cordless telephone system, in order to improve the convenience, for example, a device that allows two-way calls directly between cordless handsets (see, for example, Patent Document 1 and Patent Document 2) or cordless handset Some devices have been devised, such as transferring a call to a parent machine (see Patent Document 3).
Japanese Patent Laid-Open No. 6-237383 JP-A-8-116573 JP-A-8-154127

  However, in the related digital cordless telephone system, when an extension call is made from the door phone 206 to the cordless handset 205 while the cordless handset 205 is talking to the partner station 208 as an external line, the cordless handset 205 If the extension call from the door phone 206 cannot be answered and an extension call cannot be made, or if an extension call is made, the call with the partner station 208 that has been on the call until then is disconnected or temporarily placed on hold. In order to make an extension call between the slave unit 205 and the door phone 206, the counterpart station 208 had the inconvenience that it was disconnected or waited on hold.

  If there is only one person in the place where this digital cordless telephone system is located, the above system may be used because it is not possible to make a call with two people at the same time. It would be convenient if there was a system that could be

(Object of invention)
In view of the above problems, the present invention, when a cordless cordless handset that is on an outside line call has an extension call from another extension cordless handset, can respond to the extension call and at the same time disconnect or hold the outside line on the call. It is an object of the present invention to provide a digital cordless telephone system that can continue a call using another telephone device or a cordless cordless handset.

  In order to solve the above problems, a digital cordless telephone system according to the present invention includes a telephone device connected to a communication network, a plurality of cordless child devices connected to the telephone device, the cordless child devices, and the telephone device. Each of the plurality of cordless slave units is connected to an extension from another cordless slave unit while the one cordless slave unit is talking to an external line via the communication network. When a call is input, the call connection state with the outside line is switched and connected to the telephone device or the like based on the transfer call information set by the caller of the one cordless handset, and the other cordless An extension call switching function for connecting to a slave unit and executing the extension call is provided.

In order to solve the above problems, a call switching transfer method according to the present invention includes a telephone device connected to a communication network, a plurality of cordless slave devices connected to the telephone device, the cordless slave devices, A digital cordless telephone system including a main body-side cordless machine that controls a call operation with a telephone device, wherein one cordless child machine of the plurality of cordless child machines is communicating with an external line via the communication network When an extension call is received from another cordless cordless handset, the one cordless cordless handset receives the extension call receiving step, and a caller on the one cordless cordless handset side calls the telephone device. On the other hand, when the call transfer application is set, the call transfer application process for transmitting the transfer application information to the telephone device and the call transfer application information from the one cordless slave unit A call connection state with connecting switch to the telephone apparatus and, characterized by comprising a step switching extension call, that perform the extension call with call connection to the another cordless handset.

  Furthermore, in order to solve the above-mentioned problem, a call switching execution program according to the present invention includes a telephone device connected to a communication network, a plurality of cordless slave devices connected to the telephone device, the cordless slave devices, A digital cordless telephone system including a main body-side cordless machine that controls a call operation with a telephone device, wherein one cordless child machine of the plurality of cordless child machines is communicating with an external line via the communication network When an extension call from another cordless cordless handset is input to the cordless cordless handset, the one cordless cordless handset receives the extension call reception processing, and the caller on the one cordless cordless handset side Call transfer application processing for transmitting the transfer application information to the telephone device when the call transfer application is set, and the one cordless slave unit is connected to the other cordless slave unit. Characterized by being configured to execute internal call switching process executing the extension call, to the computer.

  Since the present invention is configured and functions as described above, according to this, when an extension call is made from another extension telephone to a cordless cordless handset that has been in the process of an outside call, it is impossible to answer or to make an extension call with each other. For those who had to disconnect or temporarily hold the outside line, while making an internal call, transfer the call to another telephone device or other cordless handset without further disconnecting or holding the external line. This provides an unprecedented superior effect of being able to provide a cordless telephone system that can be continued, thereby improving convenience.

〔Example〕
Next, an embodiment of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a block diagram showing a configuration of a digital cordless telephone system according to the present embodiment. The digital cordless telephone system shown in FIG. 1 includes a telephone device 11, a main body side cordless device 12 as a peripheral device, a cordless child device 15, and a door phone (second cordless child device) 16.

  Here, the telephone device 11 includes an analog modem that can be connected to and communicated with the partner station 18 via a wide area network such as a public telephone network or the Internet, a modem that can control VoIP (Voice over Internet Protocol, IP telephone), and the like. Furthermore, it is also provided with a hands-free call function unit comprising a handset 17, a microphone and a speaker.

  In addition, the telephone device 11 includes a slave unit control unit 19 that performs a communication control function with the main body side cordless machine 12 and an interface, and can be connected to the main body side cordless machine 12 as a peripheral device. This interface may be either a serial or parallel interface, and various standard interfaces such as PCMCIA (Personal Computer Memory Card Interface Association) standard and USB (Universal Serial Bus) standard can be used. Specific examples of the telephone device 11 may be a personal computer that is mainly composed of a telephone application program, a videophone dedicated machine, a telephone with a facsimile function, or the like.

  The main body side cordless machine 12 includes a slave unit function unit 13 that controls an interface function with the telephone device 11 and a master unit function unit that functions as a master unit that controls call / signal control with the cordless slave units 15 and 16. 14. In particular, it has a function of relaying / transferring a “busy disconnect signal” to the telephone device 11 for transferring an external line call from the cordless handset 15 specific to the embodiment of the present invention to the telephone device 11 (this). Will be described later).

  Moreover, the main body side cordless machine 12 may be configured to be detachable through a standard interface such as USB (Universal Serial Bus), for example, as a peripheral device separate from the telephone device 11. As a result, the cordless base unit function is separated from the telephone device 11, so that the function of the handset controller 19 can be achieved even when the telephone device 11 such as a personal computer equipped with telephone function software does not have the cordless function. The cordless handset 12 can be easily connected to the outside simply by including a program having the above, and a flexible system configuration is possible.

  The cordless cordless handset 15 may be a cordless cordless handset that is commercially available in basic configuration and function. However, as will be described in detail later, when an extension call is generated in the cordless cordless handset 15 during an outside call, an external line is called. A “transfer call button” for performing a transfer control operation for transferring a call to the telephone device 11 and the like and a function for realizing a function such as a busy disconnect signal transmission are provided. Further, the door phone 16 is also equipped with a cordless function similar to that of the cordless slave unit 15.

  In addition, this digital cordless telephone system is used when a call for an extension call from the door phone (second cordless handset) 16 is generated in the cordless handset 15 that is talking to the outside line via the partner station 18 and the telephone device 11. The cordless cordless handset 15 transfers the outside line call to the telephone device 11 or another cordless cordless handset by the caller's transfer operation, and another caller continues the outside line call. The second cordless cordless handset 16) has a function of performing an extension call. The details of the operation including this feature will be described below.

(Description of operation)
Next, the operation of the digital cordless telephone system according to the present embodiment will be described in detail with reference to the call sequence diagrams of FIGS. 2 to 4 and the process flowcharts shown in FIGS. Here, FIG. 5 is a process flowchart in the telephone device 11, FIG. 6 is a process flowchart in the slave controller 19, FIG. 7 is a process flowchart in the main body side cordless machine 12, and FIG. 8 is a process flowchart in the cordless slave 15. Each figure is shown.

(Normal call sequence)
First, a call sequence for a one-to-one external / internal call will be described with reference to FIG. The first call start is initiated by dialing from either the partner station 18 or the telephone device (also referred to as “own station”). In FIG. 2, as an example, a case where a call is started by dialing from the partner station 18 is described.

  At this time, the telephone device 11 rings a ringing ring sound in the telephone device 11 (Ring ringing) and sends a call signal CL notifying the handset controller 19 that a call has been made (FIG. 5, step S111). , S112).

The handset controller 19 sequentially transmits the calling signal CL from the main body side cordless machine 12 to the cordless handset 15 (processing in the handset controller 19: Steps S191 and S192 in FIG. Processing: Steps S121 and S122 in FIG. 7 and when the cordless handset 15 performs an incoming call response action (off-hook) (processing in the cordless handset 15: Steps S151 and S152 in FIG. 8), the incoming signal CB is It is transmitted to the partner station 18 in the reverse order of the call signal CL (step S153 in FIG. 8, steps S123 and S124 in FIG. 7, steps S193 and S194 in FIG. 6, and steps S113 and S114 in FIG. 5).
The call is started by returning the incoming signal CB (steps S115 and S116 in FIG. 5).

  When the call is finished, it is necessary to disconnect the line at the end. However, this disconnection signal DC may be sent from the partner station 18 or the cordless cordless handset 15 during the call. In FIG. (Steps S120 and S121 in FIG. 5, Steps S197 and S198 in FIG. 6, Steps S137 and S138 in FIG. 7, Steps S158 and S159 in FIG. 8).

(Transfer call)
Next, when an extension call such as a door phone response is made to the cordless cordless handset 15 in a call with the outside line (the partner station 18), the extension call can be made without placing the outside call partner on hold. A characteristic mechanism of this system will be described based on a call sequence diagram of call transfer (door phone priority) in FIG.

  The start of a call between the outside line (the partner station 18) and the cordless slave unit 15 is the same as the one-to-one call start described above, and there is a dial from the partner station 18 and a call is made by answering the incoming call at the cordless slave unit 15 Is shown. Here, when a call is generated from the door phone 16 by a visitor or the like, the cordless handset 15 first receives this call (extension call reception process, step S154 in FIG. 8).

  Next, when the caller sets a call transfer application by operating the “transfer call button” on the cordless handset 15 (step S155 in FIG. 8), the cordless handset 15 first applies the transfer application as shown in FIG. By notifying the main body side cordless machine 12 of the busy disconnect signal BD as information (call transfer application process, step S156 in FIG. 8, busy disconnect signal sending process), the cordless handset 15 itself has become busy. While the main body side cordless machine 12 is notified, the door phone 16 is notified of an incoming call signal CB for incoming calls (extension call switching step, step S156 in FIG. 8), and the extension call between the cordless handset 15 and the door phone 16 is made. It becomes possible.

  On the other hand, the cordless handset 12 notifies the telephone device 11 (or the third cordless handset) that the cordless handset 15 is busy (steps S135 and S136 in FIG. 7). (Steps S117 and S118 in FIG. 5). As a result, the telephone station 11 (actually, the handset 17 or hands-free) communicates with the partner station 18 that is an external line (step S119 in FIG. 5), and the cordless handset 15 can communicate with the door phone 16 (FIG. 5). 8 step S157).

  Of course, the cordless handset 15 does not have to operate the “transfer call button” when it does not want to respond to the call from the door phone 16 during a call with the partner station 18 (that is, it does not receive a call at step S155 in FIG. 8). thing) .

  Further, when the “transfer call button” is operated to respond to the call from the door phone 16, the telephone device 11 is in a communication state with the partner station 18, but it is not automatic, but the telephone device 11 Until a call start operation (off-hook) is performed (step S118 in FIG. 5), a message such as “Please wait for a while” flows (step S122 in FIG. 5). For the first time when a call is made, a call between the partner station 18 and the telephone device 11 can be made (step S119 in FIG. 5).

  This feature is that if the telephone device 11 and the cordless cordless handset 15 are in the same room and there are a plurality of people at the same time and there is a visitor, one person can visit the doorphone and the other person The operation that the correspondence with the station can be continued becomes possible.

  In addition, in the above-mentioned Patent Document 3, the cordless handset that is on the outside line is announced as a transfer method of the call. When the cordless handset transfers the call, the base unit (telephone device) temporarily holds the outside line. In this state, a troublesome operation is required in which a ringer is called to a cordless cordless handset that is on-charged to the base unit, and the base unit can release the on-line hold by on-hook and can talk. Further, even when the cordless slave unit releases an external line call to the main body side cordless device, the cordless slave unit is configured not to release itself but to operate according to a signal from the master unit.

  On the other hand, the digital cordless telephone system according to the present invention sends a busy disconnect signal to instruct the telephone device to connect to an external line when the transfer call information is input to the cordless handset as described above, and the cordless The handset itself disconnects the outside line and can move to the connection / call with the extension telephone that called the cordless handset.

  Here, the processing contents of the above-described extension call receiving process, call transfer application process (busy disconnect signal sending process), and extension call switching process may be programmed and executed by a computer.

(Telephone extension call)
Next, a call between two arbitrary extension members will be described with reference to FIG. In this embodiment, the telephone device 11 is connected to the parent function unit 14 of the main body side cordless machine 12 via the child device control unit 19 and the child device function unit 13, and is positioned as one child device with respect to the parent device function unit 14. It has become. Since the cordless child device 15 and the door phone 16 are also child devices of the parent device function unit 14, the call between the telephone device 11, the cordless child device 15, and the door phone 16 is realized as a call between child devices. FIG. 4 shows, in order from the top, a two-party call between the telephone device 11 and the cordless handset 15, a two-party call between the phone device 11 and the door phone 16, and a two-party call between the cordless handset 15 and the door phone 16. ing. The call sequence in each two-party call is composed of a call incoming response for starting communication, a call, and a disconnection sequence, respectively, and these sequences are the same as those described above or can be easily analogized, so that the description is omitted. .

(Three-party call)
In addition, the function of the three-party call between the outside line and the extension line 2 is performed. In the example of FIG. 2, when the telephone device 11 receives the notification of the incoming signal CB of the cordless handset 15 and relays it to the partner station 18, When the telephone device 11 itself performs an incoming call response operation (off-hook), the voice data is also received / transmitted from the telephone device 11 to realize a three-party call (steps 115 and 116 in FIG. 5). For a three-party call, a voice synthesizer that synthesizes the voices of two of the three parties and sends them to the remaining one is required. ing.

  Furthermore, if the telephone device 11 is configured as a videophone device that allows the telephone device 11 to transmit and receive video while viewing a video, the video data is originally stored in the telephone device 11 as a function of the device. By calling the cordless handset 15 with only the voice, it becomes possible to make a call at a place away from the videophone device. That is, it is possible to make a videophone call while watching a video on the telephone device 11 located a little away while relaxing on a sofa or the like.

With the configuration and operation described above, the digital cordless telephone system according to the present embodiment has the following effects.
The first effect is that when a telephone device and a cordless cordless handset are in the same room and there are several people at the same time, there is a visitor and one person can handle the doorphone, and the other person is the other party. The operation that the correspondence with the station can be continued becomes possible.
The second effect is that a flexible cordless telephone system can be provided by using a configuration in which the main body side cordless machine is separate from the telephone apparatus and can be detachably connected with a standard interface.
The third effect is that the telephone device, the cordless cordless handset, and the door phone can communicate with each other.
The fourth effect is that a three-party call can be realized by the partner station, the telephone device, and the cordless slave unit.
The fifth effect is that if the telephone device is a videophone device capable of transmitting and receiving video, the video data can be displayed in the telephone device as a function inherent to the device, and only the voice is communicated with the cordless handset. This makes it possible to operate video and audio on separate devices.

  As described above, according to the present invention, when an external line call and an internal line call are overlapped by a telephone device and a digital slave unit connected thereto, there is an effect that the two calls can be performed. Therefore, in an environment where a plurality of operators exist. It can be applied to the case where it is desired to simultaneously answer the telephone on the outside line and the door phone. Also, the present invention can be applied to a use in which a conference call is made between three parties, that is, an operator who uses the other station and the telephone device in the own station and an operator who uses the cordless slave unit in the own station.

1 is a block diagram of a digital cordless telephone system according to an embodiment of the present invention. FIG. 2 is a call sequence diagram of the digital cordless telephone system according to the embodiment disclosed in FIG. 1. FIG. 2 is a call sequence diagram of call transfer during an external line call in the digital cordless telephone system according to the embodiment disclosed in FIG. 1. FIG. 2 is a call sequence diagram of a call state between extensions of the digital cordless telephone system according to the embodiment disclosed in FIG. 1. It is a process flowchart figure of the telephone apparatus of the digital cordless telephone system which concerns on the Example disclosed in FIG. It is a process flowchart figure of the subunit | mobile_unit control part of the digital cordless telephone system based on the Example disclosed in FIG. It is a process flowchart figure of the main body side cordless machine of the digital cordless telephone system which concerns on the Example disclosed in FIG. It is a process flowchart figure of the cordless subunit | mobile_unit of the digital cordless telephone system based on the Example disclosed in FIG. It is a block diagram which shows the well-known digital cordless telephone system relevant to the invention disclosed by the present Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Telephone apparatus 12 Main body side cordless machine 13 cordless handset function part 14 Parent function part 15 Cordless cordless handset 16 Door phone (cordless cordless handset)
17 Handset 18 Counter station 19 Slave unit control unit BD Busy disconnect signal CL Call signal CB Incoming signal DC Disconnect signal

Claims (10)

Digital cordless telephone comprising a telephone device connected to a communication network, a plurality of cordless cordless handsets connected to the phone device, and a main body side cordless phone for controlling a call operation between the cordless cordless handsets and the phone device In the system,
Each of the plurality of cordless cordless handsets is connected to the one cordless cordless handset when an extension telephone call from another cordless cordless handset is input while the one cordless cordless handset is talking to an external line via the communication network. together based on the transfer call information set by a caller to connect switches the call connection state with the external line to said telephone equipment, the extension call switching to execute the extension call connected to the other cordless handset A digital cordless telephone system characterized by having functions. The digital cordless telephone system according to claim 1, wherein
A digital cordless telephone system, wherein the main body side cordless machine is configured as a separate device housed in a separate housing from the telephone device, and is detachably connected to the telephone device via a standard interface. The digital cordless telephone system according to claim 1 or 2,
A three-way call in which the main body side cordless machine calls the telephone device or another cordless handset from the one cordless handset in communication with the external line and executes a three-way call with the other party via the external line in communication A digital cordless telephone system characterized by having an execution setting function. The digital cordless telephone system according to any one of claims 1 to 3,
The digital cordless telephone system, wherein the main body side cordless machine has an extension two-way call execution setting function between the telephone device and the cordless slave unit or between cordless slave units. The digital cordless telephone system according to any one of claims 1 to 4,
A digital cordless telephone system, wherein the telephone device includes a handset including a normal telephone handset and a hands-free communication function including a microphone and a speaker. The digital cordless telephone system according to any one of claims 1 to 5,
A digital cordless telephone system, wherein the telephone device has a videophone function. The digital cordless telephone system according to any one of claims 1 to 5,
A digital cordless telephone system, wherein the telephone device has a facsimile function. The digital cordless telephone system according to any one of claims 1 to 7,
A digital cordless telephone system, characterized in that the telephone device is mainly composed of a personal computer loaded with a telephone application program. Digital cordless telephone comprising a telephone device connected to a communication network, a plurality of cordless cordless handsets connected to the phone device, and a main body side cordless phone for controlling a call operation between the cordless cordless handsets and the phone device In the system,
When one of the plurality of cordless cordless handsets communicates with an external line via the communication network and an extension call is received from another cordless cordless handset, the one cordless cordless handset An extension call receiving process for receiving this,
When the caller on the one cordless handset side sets a call transfer application for the telephone device, a call transfer application step of transmitting the transfer application information to the telephone device;
An extension for switching the call connection state with the external line to the telephone device based on the call transfer application information from the one cordless slave unit, and connecting the call to the other cordless slave unit and executing the extension call A call switching process;
A call switching transfer method characterized by comprising: Digital cordless telephone comprising a telephone device connected to a communication network, a plurality of cordless cordless handsets connected to the phone device, and a main body side cordless phone for controlling a call operation between the cordless cordless handsets and the phone device In the system,
When one of the plurality of cordless slaves communicates with an external line via the communication network and an extension call is received from another cordless slave, the one cordless slave is Extension call reception processing function to receive this,
A switching connection function for switching and connecting a call state with the outside line to the telephone device based on transfer call information set by a caller on the one cordless handset side ;
In addition, the one cordless handset is connected to the other cordless handset and the extension call switching processing function for setting the extension call to an executable state is executed by the computer together with the switching connection. call switching it run program that was.

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