JP2021136513A - Call system, call terminal, communication control device, call program, communication control program, and call method - Google Patents

Abstract

To achieve an incoming call rejection and an incoming call permission with a simple operation and a flexible condition.SOLUTION: In the present invention, when setting to an incoming call rejection mode, a call terminal notifies a communication control device of information indicating the setting of the incoming call rejection, and the communication control device manages the incoming call rejection of the call terminal in a state where a registration of the call terminal in a call control device is held. When receiving a call connection request signal for the call terminal in the incoming call rejection from the call control device, a call signal is transmitted to the call terminal, and the call terminal replies an incoming call rejection to the communication control device if a caller number of the received call signal is not a specific incoming call permission number. Communication control means of the communication control device does not respond to the call connection request signal from the call control device when receiving the incoming call rejection signal.SELECTED DRAWING: Figure 1

Description

The present invention relates to a call system, a call terminal, a communication control device, a call program, a communication control program, and a call method, and can be applied to, for example, a terminal or system in which a call program, which is a call application, is installed to make a call. Is.

In recent years, with the spread of flat-rate data communication services for smartphones, the IP-PBX IP phone application (hereinafter referred to as "softphone") has been installed on smartphones, and softphones can be connected not only indoors in the office but also on the go via the Internet. The number of cases of making an extension call using is increasing.

Generally, the softphone is call-controlled by "SIP (RFC2361)", and the IP-PBX does not receive the regular REGISTER from the softphone (SIP terminal) within a certain period of time by the REGISTER mechanism of SIP, or the softphone. When unREGISTER is received from a telephone (SIP terminal), the corresponding softphone (SIP terminal) is put out of service area, and subsequent incoming calls to the corresponding softphone (SIP terminal) are forwarded to another telephone or out-of-service guidance is given. (The operation of "regular REGISTER" and "unREGISTER" is defined by SIP (RFC3261), so the description thereof will be omitted).

As an example of using this REGISTER mechanism, if you want to temporarily reject incoming calls with a softphone, you can reject incoming calls using the out-of-service transfer service by sending unREGISTER from the softphone to the IP-PBX (patented). (See Documents 1 and 2).

Japanese Unexamined Patent Publication No. 2013-066131 Japanese Unexamined Patent Publication No. 2007-096778

However, the above-mentioned conventional out-of-service transfer service has a problem that when the call rejection is turned on by the softphone, the incoming call cannot be uniformly received. Therefore, it is not possible to allow only a specific caller (calling number) to receive an incoming call at the discretion of the softphone side, or to leave an incoming call history of incoming call rejection when the incoming call rejection on the softphone side is ON.

Therefore, the present invention attempts to provide a call system, a call terminal, a communication control device, a call program, a communication control program, and a call method that can realize incoming call rejection and incoming call permission by simple operations under flexible conditions. To do.

In order to solve such a problem, in the first invention, in a call system in which a call terminal and a call control device exchange a call control signal via a communication control device, the call terminal is set to a call rejection mode. Then, the communication control device is provided with an incoming call rejection setting means for notifying the communication control device of information indicating the incoming call rejection setting, and when the communication control device receives the information indicating the incoming call rejection setting from the call terminal, the call terminal in the call control device When an incoming call rejection management means that manages incoming call rejection of the calling terminal and a call connection request signal addressed to the calling terminal in the incoming call rejection are received from the call control device while the registration of is retained, a ringing signal is sent to the calling terminal. A means for determining call rejection, which is provided with a communication control means for transmitting and returns a call rejection signal to the communication control device when the call terminal does not have a specific call permission number for the call signal received from the communication control device. The communication control means of the communication control device is characterized in that when it receives an incoming call rejection signal, it does not respond to a call connection request signal from the call control device.

The second aspect of the present invention is information indicating to the communication control device the incoming call rejection setting when the incoming call rejection mode is set in the call terminal that sends and receives the call control signal to and from the call control device via the communication control device. Incoming call rejection setting means for notifying, and in the incoming call rejection mode, when the caller ID of the call signal received from the communication control device is not a specific incoming call permission number, the incoming call rejection signal is returned to the communication control device. It is characterized by having a judgment means.

A third aspect of the present invention is a communication control device that intervenes between a call terminal and a call control device and relays a call control signal sent and received between the call terminal and the call control device. When the information indicating the above is received, the incoming call rejection management means for managing the incoming call rejection of the calling terminal and the call connection request signal addressed to the calling terminal in the incoming call rejection are sent in a state where the registration of the calling terminal in the call control device is retained. A communication control means for transmitting a call signal to the call terminal when received from the call control device is provided, and when the communication control means receives an incoming call rejection signal for rejecting an incoming call from the call terminal, a call connection request signal from the call control device is provided. It is characterized in that it does not respond to.

According to the fourth aspect of the present invention, when the call rejection mode is set, a computer mounted on a call terminal that exchanges a call control signal with the call control device via the communication control device receives an incoming call to the communication control device. An incoming call rejection setting means that notifies information indicating the rejection setting, and a communication control device that sends an incoming call rejection signal when the caller ID of the call signal received from the communication control device is not a specific incoming call permission number in the incoming call rejection mode. It is characterized in that it functions as a means for determining call rejection.

A fifth aspect of the present invention is to use a computer mounted on a communication control device that is interposed between a call terminal and a call control device and relays a call control signal transmitted and received between the call terminal and the call control device. When the information indicating the incoming call rejection setting is received from the terminal, the incoming call rejection management means for managing the incoming call rejection of the call terminal and the call terminal in the incoming call rejection are addressed while the registration of the call terminal in the call control device is retained. When a call connection request signal is received from the call control device, it functions as a communication control means for transmitting a call signal to the call terminal, and when the communication control means receives an incoming call rejection signal for rejecting an incoming call from the call terminal, the call control device It is characterized in that it does not respond to the call connection request signal of.

A sixth aspect of the present invention is a communication method in which a call terminal and a call control device exchange a call control signal via a communication control device. When the communication control device receives the information indicating the incoming call rejection setting from the call terminal, the communication control device notifies the information indicating the incoming call rejection setting, and the incoming call of the call terminal is retained while the registration of the call terminal in the call control device is retained. When the call connection request signal addressed to the call terminal in the call rejection is received from the call control device, the call signal is transmitted to the call terminal, and the call terminal receives the caller ID of the call signal from the communication control device. Is not a specific incoming call permission number, an incoming call rejection signal is returned to the communication control device, and when the communication control means of the communication control device receives the incoming call rejection signal, it responds to the call connection request signal from the call control device. It is characterized by not doing so.

According to the present invention, incoming call rejection and incoming call permission can be realized by simple operations under flexible conditions.

It is an overall configuration diagram which shows the overall configuration of the call system which concerns on 1st Embodiment. It is an internal block diagram which shows the internal structure of the mobile terminal which concerns on 1st Embodiment. It is an internal block diagram which shows the internal structure of the VoIP-GW which concerns on 1st Embodiment. It is a sequence diagram which shows the processing operation when the conventional call rejection mode is a setting ON state. It is a sequence diagram which shows the operation of the call processing which concerns on 1st Embodiment. It is an internal block diagram which shows the internal structure of the mobile terminal which concerns on 2nd Embodiment. It is an internal block diagram which shows the internal structure of the VoIP-GW which concerns on 2nd Embodiment. It is a sequence diagram which shows the operation of the call processing which concerns on 2nd Embodiment.

(A) First Embodiment In the following, the first embodiment of the call system, the call terminal, the communication control device, the call program, the communication control program, and the call method according to the present invention will be described in detail with reference to the drawings. Explain to.

(A-1) Configuration of First Embodiment [Overall Configuration of Call System]
FIG. 1 is an overall configuration diagram showing an overall configuration of a communication system (voice communication system) according to the first embodiment.

In FIG. 1, the communication system 9 according to the first embodiment is a premises system including a Voice over IP (GW2) as a communication control device, an IP-PBX3, an IP telephone 4, a router 5, and the like. 20 and a mobile terminal 10 as a telephone terminal.

Although only one IP telephone 4 is shown in FIG. 1, a plurality of IP telephones 4 may be used.

The mobile terminal 10 is a telephone terminal having a communication function, a microphone, a speaker, and the like, and for example, a smartphone, a tablet terminal, a wearable terminal, a personal computer, a game terminal, and the like can be applied. The mobile terminal 10 is connected to, for example, a wireless communication network 6-2 such as an LTE communication network, the Internet 6-1 or the like, and transmits / receives information to / from the components constituting the premises system 20.

Although the hardware configuration of the mobile terminal 10 is not shown, it can be a device including a CPU, ROM, RAM, EEPROM, an input / output interface, a communication device (communication unit), and the like, as in the existing call terminal. Then, the CPU executes various processes by executing a processing program (for example, a call program 1) stored in the ROM. Further, a call program 1 for carrying out a call on the mobile terminal 10 is installed in the mobile terminal 10.

The call program 1 is an application that executes a call on a call terminal such as a mobile terminal 10, and is called a so-called softphone. The call program 1 holds the global IP address of the destination device for transmitting the call control signal, and transmits the call control signal to the global IP address. For example, the destination global IP address is the IP address of the router 5 connected to the Internet 6-1.

The VoIP-GW2 is a device that relays call control signals and RTP packets. Although the hardware configuration of VoIP-GW2 is not shown, it can be a device including a CPU, ROM, RAM, EEPROM, an input / output interface, a communication device (communication unit), and the like, like existing network devices. Then, the CPU executes various processes by executing a process program (for example, a call control program 25) stored in the ROM.

The IP-PBX3 is a call control device that controls call processing between the IP telephone 4 and the call program 1. The IP-PBX3 performs call control according to, for example, a predetermined call control protocol. The call control protocol is not particularly limited, and in this embodiment, for example, a case where SIP (Session Initiation Protocol) is applied is illustrated.

The IP telephone 4 is a telephone connected to the LAN of the premises system 20, and the communication process is controlled by the IP-PBX3.

The router 5 is a network device connected to the Internet 6-1 with a global IP address. This global IP address is always connected with a fixed IP address according to the contract of the Internet connection service provider. The router 5 forwards (NAT connection) the communication packet received at the specific communication port of this global IP address to the local IP address of VoIP-GW2 on the LAN side. By this operation (setting) by the router 5, the call program 1 operating on the mobile terminal 10 connected by LTE is connected to the router 5 via the Internet 6-1 and the VoIP-GW2 connected to the LAN of the premises system 20. Can communicate with.

[Mobile terminals and call programs]
FIG. 2 is an internal configuration diagram showing an internal configuration of the mobile terminal 10 according to the first embodiment.

In FIG. 2, the mobile terminal 10 according to the first embodiment has a control unit 11, a communication unit 12, and a storage unit 13, and a call program 1 is installed in the storage unit 13.

The control unit 11 controls the processing of the mobile terminal 10. The communication unit 12 transmits and receives information.

The call program 1 transmits and receives a call control signal according to a call control protocol to establish a call and perform voice communication. The call program 1 has a function of turning on / off the setting of the incoming call rejection mode by a user operation on the mobile terminal 10. Further, the call program 1 can make a call by a user operation even when the incoming call rejection mode is set to ON. In other words, it is possible to make a call even if the incoming call is restricted. Further, the call program 1 allows an incoming call when the call is made from a number registered in advance even when the incoming call rejection mode is set to ON.

Here, the "call rejection mode" is a state in which the IP-PBX (call control device) 3 has not registered the telephone number of the call program (softphone) 1 in which the call rejection is set to ON according to the call control protocol (out-of-service state). ), Which means that no incoming call is made to the call program 1. In other words, in the "incoming call rejection mode", when the incoming call rejection is turned on on the call program 1 side, the IP-PBX3 side puts the call program 1 out of service area. Therefore, even if there is an incoming call to the call program 1 after that, the IP-PBX (call control device) 3 cannot establish the call.

The call program 1 has an incoming call rejection mode setting unit 101, an incoming call permission registration unit 102, and an incoming call rejection determination unit 103.

The incoming call rejection mode setting unit 101 turns on / off the incoming call rejection mode setting by operating on the mobile terminal 10. Various methods can be widely applied to the method of setting the incoming call rejection mode. For example, a method of displaying a call program setting screen on a display unit (for example, a display or the like) of the mobile terminal 10 and setting the incoming call rejection mode to ON or OFF on this setting screen can be applied. With such a simple operation, the incoming call rejection mode of the call program (softphone) 1 can be set. The method of setting the incoming call rejection mode is not limited to the above-mentioned example.

The incoming call permission registration unit 102 registers a telephone number for permitting an incoming call (hereinafter, also referred to as an "incoming call permission number") even when the incoming call rejection mode setting is ON. As a result, when a call is made from the caller or telephone number desired by the user, a call can be made with the callee.

Various methods can be applied to the method of registering the telephone number to be permitted to receive a call by the incoming call permission registration unit 102.

For example, the user may enter and register a telephone number for which incoming calls are permitted. Further, for example, the telephone directory (including the application that manages the telephone directory) on the mobile terminal 10 is read, and the telephone number that is allowed to receive a call is selected from the telephone directories registered in the telephone directory. You may want to register the phone number. Further, for example, the past incoming call history and / or outgoing call history may be displayed on the display unit of the mobile terminal 10, and the telephone number for which incoming call is permitted may be selected from the incoming call history and / or outgoing call history.

Further, for example, the incoming call permission registration unit 102 refers to, for example, the incoming call history and / or the outgoing call history so that the incoming call from the other party who has made the latest call can be permitted. A plurality of telephone numbers may be automatically registered as incoming call permission numbers. That is, not only the telephone number registered manually by the user, but also the telephone number that has been called within a predetermined time may be automatically registered from the incoming call history or the outgoing call history.

It should be noted that it may be possible to select and set on the mobile terminal 10 whether to register the incoming call permission number manually by the user or to automatically register the incoming call permission number. The number of incoming call permission numbers may be one or a plurality. Further, the incoming call permission number may be registered in the storage unit 13 of the mobile terminal 10, or may be registered on a server (for example, a cloud server or the like) arranged on the network.

When the incoming call rejection determination unit 103 receives the call signal (INVITE signal) from the VoIP-GW 2, it extracts the caller ID included in the call signal and compares the caller ID with the incoming call permission number.

Then, when the caller ID is the incoming call permission number, the incoming call rejection determination unit 103 permits the incoming call signal. At this time, when the user answers the call, the incoming response to the call signal is transmitted to the VoIP-GW2. As a result, even if the incoming call rejection mode is set to ON, the user can answer the call when making a call from a pre-registered incoming call permission number (that is, a specific caller ID), and the incoming call is permitted. can do. At this time, since the call signal is received from VoIP-GW2, the caller ID can be recorded as the incoming call history. Therefore, even when the user cannot answer the call, the caller ID remains in the incoming call history, so that the caller ID can be searched from the incoming call history and made a call.

On the other hand, when the caller ID is not the incoming call permission number, the incoming call rejection determination unit 103 transmits the incoming call rejection signal for the received call signal to the VoIP-GW2. In this case, since the call signal is received by the call program 1, the caller ID can be left as an incoming call history.

[VoIP-GW]
FIG. 3 is an internal configuration diagram showing an internal configuration of VoIP-GW2 according to the first embodiment.

In FIG. 3, the VoIP-GW 2 according to the first embodiment has a control unit 21, a communication unit 22, and a storage unit 23.

The control unit 21 controls the processing performed by the VoIP-GW2. The communication unit 22 transmits / receives information to / from the LAN in the premises system 20.

The storage unit 23 stores a call control program 25 that controls call processing with the call program 1 mounted on the mobile terminal 10. The processing unit in which the call control program 25 is executed and executed by the control unit 21 is also referred to as a "communication control unit".

The call control program 25 relays call control signals sent and received between the call program 1 mounted on the mobile terminal 10 and the IP-PBX3.

When the call control program 25 receives an incoming call rejection ON signal (hereinafter, also referred to as an "incoming call rejection execution signal") indicating that the incoming call rejection mode is set to the ON state from the call program 1, the call program (softphone) ) Stores the incoming call rejection management information 251 in which the telephone number of 1 and the incoming call rejection flag indicating that the incoming call rejection mode is set to the ON state are associated with each other.

Here, when the call control program 25 receives the incoming call rejection ON signal from the communication program (softphone) 1, it prevents the IP-PBX3 from transmitting unREGISTER.

That is, when the conventional call rejection mode is turned on, the call program (softphone) 1 is not registered in the IP-PBX3 (for example, out of service area), so that the VoIP-GW2 is IP-. UnREGISTER is being transmitted to PBX3. On the other hand, in this embodiment, when the call control program 25 receives the incoming call rejection ON signal from the call program 1, it does not transmit unREGISTER to the IP-PBX3, so that the call program (softphone) 1 is IP-. The state registered in PBX3 can be maintained.

In other words, even if the call rejection mode is set to the ON state on the call program (software) 1, the call program (softphone) 1 is registered on the IP-PBX3 side, so that the call program 1 When a call is made to the called destination, the call control signal (INVITE signal) addressed to the call program 1 is transmitted from the IP-PBX3.

A detailed description of the communication control process of VoIP-GW2 when the call rejection mode is turned ON on the call program 1 side will be described in the section of operation.

(A-2) Operation of First Embodiment Next, the operation of call processing in the call system 9 according to the first embodiment will be described in detail with reference to the drawings.

In the following, first, the processing operation when the conventional incoming call rejection mode is set to the ON state will be described with reference to FIG. 4, and then the processing operation according to the first embodiment will be described with reference to FIG.

(A-2-1) Processing in the Conventional Call Rejection Mode ON State FIG. 4 is a sequence diagram showing a processing operation when the conventional call rejection mode is in the setting ON state.

[S301]
When the call program (softphone) 1 is activated on the mobile terminal 10, the call program 1 uses the Internet 6-1 / wireless communication network 6-2 for the global IP address of the destination held in advance. And send a start-up signal. The activation signal is received by the VoIP-GW2 via the router 5 having the destination global IP address.

[S302]
Upon receiving the activation signal transmitted from the call program 1, the VoIP-GW 2 transmits a SIP REGISTER signal to the IP-PBX3. After that, the VoIP-GW 2 retransmits the SIP REGISTER signal to the IP-PBX3 when receiving the periodic connection signal from the call program 1 or periodically until the end signal is received from the call program 1. ..

[S303]
In the mobile terminal 10, when the call program (softphone) 1 sets the incoming call rejection mode to ON on the operation screen of the mobile terminal 10, the call program 1 transmits an end signal to the VoIP-GW 2. .. Upon receiving the end signal, the VoIP-GW2 transmits a SIP unREGISTER signal to the IP-PBX3.

[S351]
After that, even if the IP telephone 4 transmits a outgoing call request to the call program 1, the IP-PBX3 performs a disconnection process for the outgoing call request to the call program 1. Alternatively, the IP-PBX3 sends a message stating "I can't answer the phone right now" to the calling terminal (IP phone 4 in this example) or makes a preset absent transfer destination phone receive the call. You may.

[S304]
Hereinafter, the processing will be described when the call program 1 performs the outgoing call process in the state where the call rejection is set to ON on the call program (softphone) 1 side.

When the call program 1 performs a call operation on the mobile terminal 10 in the incoming call rejection mode ON state, the call program 1 transmits a start signal to the VoIP-GW 2 and subsequently transmits a call signal.

[S305]
Upon receiving the activation signal transmitted from the call program 1, the VoIP-GW 2 transmits a SIP REGISTER signal to the IP-PBX3.

[S306]
Further, when the VoIP-GW 2 receives the transmission signal transmitted from the call program 1, it transmits a SIP INVITE signal to the IP-PBX3.

[S307]
When the IP-PBX3 receives the INVITE signal, it calls the telephone with the specified destination number.

[S308]
When the called IP telephone 4 answers, the response signal is transmitted to the call program 1 via the IP-PBX3 and VoIP-GW2, and the call program 1 receives the response signal. After that, a call is established between the call program (softphone) 1 and the IP phone 4.

[S309]
For example, when the call is disconnected by the IP telephone 4, the disconnection signal is transmitted to the IP-PBX3, and the call between the call program (softphone) 1 and the IP telephone 4 ends.

[S310]
After the call ends, when the call program 1 is in the call rejection mode ON state, the call program 1 sets the call rejection mode to ON again, so that the call program 1 transmits the end signal to the VoIP-GW 2 again.

[S311]
Upon receiving the end signal, the VoIP-GW2 transmits a SIP unREGISTER signal to the IP-PBX3. As a result, the IP-PBX3 rejects the incoming call addressed to the call program (softphone) 1.

[S352]
After that, even if the IP telephone 4 transmits a outgoing call request to the call program 1, the IP-PBX3 performs a disconnection process for the outgoing call request to the call program 1. Alternatively, the IP-PBX3 sends, for example, a message stating "I can't answer the phone right now" to the calling terminal (IP phone 4 in this example), or makes a preset absent transfer destination phone receive an incoming call. You may do so.

(A-2-2) Processing of Call Rejection Mode ON State of First Embodiment FIG. 5 is a sequence diagram showing an operation of call processing according to the first embodiment.

[S101]
When the call program (softphone) 1 is activated on the mobile terminal 10, the call program 1 uses the Internet 6-1 / wireless communication network 6-2 for the global IP address of the destination held in advance. And send a start-up signal. The activation signal is received by the VoIP-GW2 via the router 5 having the destination global IP address.

[S102]
Upon receiving the activation signal transmitted from the call program 1, the VoIP-GW 2 transmits a SIP REGISTER signal to the IP-PBX3.

After that, the VoIP-GW 2 periodically receives the connection signal from the call program (softphone) 1 or the end signal from the call program (softphone) 1 to the IP-PBX3. , SIP REGISTER signal is retransmitted.

[S103]
When the incoming call rejection mode is set to ON by the user operation on the display screen of the display unit of the mobile terminal 10, the call program 1 sends a call rejection ON signal indicating the incoming call rejection ON state to the VoIP-GW 2. Notice.

At this time, the VoIP-GW2 that has received the incoming call rejection ON signal does not transmit unREGISTER to the IP-PBX3. Therefore, on the IP-PBX3 side, the state in which the call program (softphone) 1 is registered can be maintained. Further, the VoIP-GW2 will not respond to the INVITE signal addressed to the call program (softphone) 1 from the IP-PBX3 thereafter.

[S104]
The IP telephone 4 makes a call request to the call program 1.

[S105]
Upon receiving the transmission request for the call program 1, the IP-PBX3 transmits an INVITE signal to the VoIP-GW2.

[S106]
The VoIP-GW 2 transmits a call signal to the call program 1.

[S107, S108]
The call program 1 extracts the caller ID included in the call signal from the VoIP-GW 2 and compares the caller ID with the pre-registered incoming call permission number.

When the caller ID is the incoming call permission number, the incoming call rejection determination unit 103 of the call program 1 permits the incoming call signal to be received, and the user can answer the incoming call.

On the other hand, when the caller ID is not the incoming call permission number, the incoming call rejection determination unit 103 of the call program 1 determines that the incoming call is rejected (S107). At this time, the incoming call rejection determination unit 103 of the call program 1 transmits the incoming call rejection signal for the received call signal to the VoIP-GW 2 (S108).

[S109]
The VoIP-GW 2 refers to the incoming call rejection management information 251 and sets no response to the INVITE signal from the IP-PBX3 to the call program 1 when the call program 1 is in the incoming call rejection ON state.

[S110]
The IP-PBX3 is set with a response waiting time (for example, about 3 seconds) for the INVITE signal. The IP-PBX3 determines that the response waiting time-out of the INVITE signal addressed to the call program 1 has occurred, and considers that the call program (softphone) 1 is out of service area and therefore has no response. At this time, the disconnection process is performed in response to the outgoing call request from the IP telephone 4. Alternatively, the IP-PBX3 may, for example, send a message stating "I can't answer the phone right now" or make a preset absent transfer destination telephone receive an incoming call.

[S111]
In the call program 1, the outgoing call operation can be performed even when the incoming call rejection mode is ON. When the outgoing call operation addressed to the IP telephone 4 is performed in the incoming call rejection mode ON state, the call program 1 transmits a outgoing call signal to the VoIP-GW 2.

[S112]
Upon receiving the outgoing signal transmitted from the call program 1, the VoIP-GW 2 transmits an INVITE signal to the IP-PBX3.

[S113]
When the IP-PBX3 receives the INVITE signal, it calls the IP telephone 4 having the designated destination number.

[S114]
When the called IP telephone 4 answers, the response signal is transmitted to the call program 1 via the IP-PBX3 and the VoIP-GW2. When the call program 1 receives the answer signal, the call program 1 and the IP telephone 4 then enter a call state.

[S115]
For example, when the call is disconnected by the IP telephone 4, the disconnection signal is transmitted to the IP-PBX3, and the call between the call program (softphone) 1 and the IP telephone 4 ends.

[S116]
After that, when the IP telephone 4 transmits a transmission request to the call program 1, the same processing as the processing of S104 to S110 is repeatedly executed.

(A-3) Effect of First Embodiment As described above, according to the first embodiment, the incoming call rejection mode is set to ON on the softphone side, and even if the incoming call is restricted, it is registered in advance. It is possible to allow only a specific party to receive an incoming call and leave the incoming call history of rejected incoming calls on the softphone.

(B) Second Embodiment Next, the second embodiment of the call system, the call terminal, the communication control device, the call program, the communication control program, and the call method according to the present invention will be described in detail with reference to the drawings. Explain to.

(B-1) Configuration of Second Embodiment Since the call system of the second embodiment basically has the same configuration as the call system shown in FIG. 1 of the first embodiment, the second embodiment. In the form, it will be described with reference to FIG.

In the second embodiment, the processing of the call program mounted on the mobile terminal 10 and the processing of the VoIP-GW2 are different from those of the first embodiment. Therefore, in the second embodiment, the processing of the call program mounted on the mobile terminal 10 and the processing of the VoIP-GW2 will be mainly described.

FIG. 6 is an internal configuration diagram showing an internal configuration of the mobile terminal 10 according to the second embodiment.

In FIG. 6, the mobile terminal 10 according to the second embodiment has a control unit 11, a communication unit 12, and a storage unit 13, and a call program 1A is installed in the storage unit 13.

The call program 1A has an incoming call rejection mode setting unit 101, an incoming call permission registration unit 102, an incoming call rejection determination unit 103, and a temporary permission notification unit 104.

Since the incoming call rejection mode setting unit 101, the incoming call permission registration unit 102, and the incoming call rejection determination unit 103 perform the same processing as in the first embodiment, detailed description here will be omitted.

The temporary permission notification unit 104 notifies the VoIP-GW 2 of a telephone number (hereinafter, also referred to as a "temporary call permission number") for temporarily permitting an incoming call when the incoming call rejection mode is ON. be. By notifying the VoIP-GW2 side of the telephone number that temporarily permits incoming calls, the temporary incoming call permission number is used as the caller ID, and when there is a call request addressed to the call program 1A, the call program is used. Incoming calls addressed to 1A can be permitted.

FIG. 7 is an internal configuration diagram showing an internal configuration of VoIP-GW2 according to the second embodiment.

In FIG. 7, the VoIP-GW 2 according to the second embodiment has a control unit 21, a communication unit 22, and a storage unit 23.

The storage unit 23 stores a call control program 25A that controls call processing with the call program 1A mounted on the mobile terminal 10.

When the call control program 25A receives information including the temporary incoming call permission number from the call program 1A, the call control program 25A creates and manages the incoming call rejection management information 251A in which the temporary incoming call permission number is associated with the telephone number of the call program 1A. do.

For example, as illustrated in FIG. 7, when the telephone number of the call program 1A is "11111111111", the telephone number "1111111111", the information of the incoming call rejection flag "ON", and the temporary notification from the call program 1A are provided. It is managed in association with the incoming call permission number "333333333333". The number of temporary incoming call permission numbers managed by the incoming call rejection management information 251A is not limited to one, and may be a plurality.

Further, the call control program 25A refers to the incoming call rejection management information 251A and receives an INVITE signal addressed to the call program 1A in which the incoming call rejection mode is ON, and when there is a temporary incoming call permission number, INVITE Extract the caller ID included in the signal. Then, the call control program 25A compares the caller ID with the corresponding temporary incoming call permission number.

When the caller ID is a temporary call permission number, the call control program 25A transmits a call signal to the call program (softphone) A. Then, if there is an incoming call answer in the call program 1A, the call control signal received from the call program 1A is transmitted to the IP-PBX3 in order to establish the call.

On the other hand, when the caller ID is not a temporary call permission number, the call control program 25A makes no response to the INVITE signal from the IP-PBX3.

The call control program 25A deletes the temporary incoming call permission number held in the incoming call rejection management information 251A after a predetermined time has elapsed.

(B-2) Operation of the Second Embodiment FIG. 8 is a sequence diagram showing a call processing operation according to the second embodiment.

In FIG. 8, the same processing as the processing of the sequence diagram of FIG. 5 of the first embodiment is assigned the same number. Hereinafter, detailed description of the processing already described in the first embodiment will be omitted.

[S201]
Similar to the first embodiment, even if the call rejection mode is ON on the call program (softphone) 1A side, the call operation can be performed from the call program 1A. Therefore, for example, it is assumed that the outgoing call operation is performed while the incoming call rejection mode is ON, the user makes a call with the other party, then the call ends, and the call is disconnected (S111 to S115).

In such a case, there is a possibility that the other party's IP telephone 4 may make a call again, but the incoming call rejection mode is in the ON state, and the telephone number of the IP telephone 4 is registered as the incoming call permission number. If not, the incoming call from the IP telephone 4 will be rejected.

Therefore, in the call program 1A, when the incoming call rejection mode is ON after the call ends, a signal is transmitted to the VoIP-GW 2 with the telephone number of the call end partner as a temporary permission number (S201).

[S202]
In VoIP-GW2, when a signal including a temporary incoming call permission number is received from the call program 1A, the telephone number of the call program 1A and the temporary call permission number are associated with each other and held in the incoming call rejection management information 251A (additional). And manage it.

In VoIP-GW2, the temporary incoming call permission number is deleted after a predetermined time elapses after the temporary incoming call permission number is held.

[S203, S204, S205, S206]
After that, when the IP telephone 4 transmits a transmission request to the call program 1A (S203), the IP-PBX3 transmits an INVITE signal addressed to the call program 1A to the VoIP-GW 2 (S204).

When the VoIP-GW 2 receives the INVITE signal addressed to the call program 1A, the VoIP-GW 2 extracts the destination number included in the INVITE signal. Then, with reference to the incoming call rejection management information 251A, it is determined whether the incoming call destination number is the telephone number of the call program 1A, and when the incoming call destination number is the telephone number of the call program 1A, the incoming call is rejected. Judge.

When the temporary incoming call permission number is set in the incoming call rejection management information 251A, the caller ID included in the INVITE signal is extracted and the caller ID and the temporary incoming call permission number are compared.

Then, when the caller ID is a temporary call permission number, the VoIP-GW2 call control program 25A transmits a call signal to the call program (softphone) 1A (S205). Then, when the call program 1A answers the incoming call (S206), the VoIP-GW 2 transmits the call control signal received from the call program 1A to the IP-PBX3 in order to establish the call.

[S207, 208, S209, S210]
The IP telephone 4 transmits an outgoing call request to the call program 1A (S207), and the IP-PBX3 transmits an INVITE signal addressed to the call program 1A to the VoIP-GW 2 (S208).

Similarly, the VoIP-GW 2 refers to the incoming call rejection management information 251A and determines that the INVITE signal is addressed to the call program 1A in which the incoming call rejection mode is ON and a temporary incoming call permission number is set. , Compare the caller ID with the temporary call permission number.

Then, when the caller ID is not a temporary call permission number, the VoIP-GW2 call control program 25A makes no response to the INVITE signal from the IP-PBX3 (S209).

In the IP-PBX3, when the response waiting timeout of the INVITE signal occurs, the call program (softphone) 1A is regarded as being out of service area, and the outgoing call request is disconnected. Alternatively, for example, a message stating "I can't answer the phone right now" is sent, or a preset absent transfer destination telephone is used to receive an incoming call.

(B-3) Effect of Second Embodiment As described above, according to the second embodiment, even if the softphone is rejecting an incoming call, the identification registered in advance is performed, as in the first embodiment. In addition to allowing only the other party to receive incoming calls and leaving the call history of rejected calls on the softphone, allowing the other party to call back from the softphone for a certain period of time when the incoming call is rejected uniformly. Can be done.

(C) Other Embodiments Although various modified embodiments have been mentioned in the above-described embodiments, the following modified embodiments can also be applied to the present invention.

(C-1) When the softphone installed in the mobile terminal performs a uniform call rejection and the softphone performs a outgoing call operation and the other party cannot answer the call, the uniform incoming call rejection is canceled. Otherwise, the call will be rejected when the caller calls back to the softphone. Therefore, it takes time and effort to call back from the softphone. According to the present invention, it is possible to receive a call back from the other party (within a predetermined time) without canceling the uniform call rejection, and the trouble of making a call back again is eliminated.

1 and 1A ... Call program, 10 ... Mobile terminal, 20 ... Private branch system, 2 ... VoIP-GW, 3 ... IP-PBX, 4 ... IP telephone, 5 ... Router, 6-1 ... Internet, 6-2 ... Wireless communication Network, 11 ... Control unit, 12 ... Communication unit, 13 ... Storage unit, 101 ... Call rejection mode setting unit, 102 ... Call permission registration unit, 103 ... Call rejection judgment unit, 104 ... Temporary permission notification unit, 21 ... Control unit , 22 ... Communication unit, 23 ... Storage unit, 25 and 25A ... Call control program, 251 and 251A ... Call rejection management information.

Claims (9)

In a call system in which a call terminal and a call control device exchange call control signals via a communication control device.
The call terminal includes a call rejection setting means for notifying the communication control device of information indicating the call rejection setting when the call rejection mode is set.
The communication control device is
Upon receiving the information indicating the incoming call rejection setting from the calling terminal, the incoming call rejection management means for managing the incoming call rejection of the calling terminal while retaining the registration of the calling terminal in the call control device, and the incoming call rejection management means.
It is provided with a communication control means for transmitting a call signal to the call terminal when the call connection request signal addressed to the call terminal in the call rejection is received from the call control device.
The call terminal is provided with an incoming call rejection determining means for returning an incoming call rejection signal to the communication control device when the caller ID of the ringing signal received from the communication control device is not a specific incoming call permission number.
A call system characterized in that, when the communication control means of the communication control device receives the incoming call rejection signal, it does not respond to the call connection request signal from the call control device. The call terminal includes a temporary call permission means for notifying the communication control device of information including a temporary call permission number for temporarily permitting a call.
The communication control device is
The incoming call rejection management means manages the temporary incoming call permission number from the calling terminal in association with the identification information of the calling terminal.
When the communication control means receives a call connection request signal addressed to the call terminal in the call rejection from the call control device, when the caller ID is the temporary call permission number, the call signal is transmitted to the call terminal. The call system according to claim 1, wherein when the caller ID is not the temporary call permission number, the call connection request signal is not answered. In a call terminal that exchanges call control signals with a call control device via a communication control device
When the incoming call rejection mode is set, the incoming call rejection setting means for notifying the communication control device of the information indicating the incoming call rejection setting, and the incoming call rejection setting means.
In the call rejection mode, when the caller ID of the call signal received from the communication control device is not a specific call permission number, the call rejection determination means for returning the call rejection signal to the communication control device is provided. A calling terminal characterized by. The calling terminal according to claim 3, further comprising a temporary incoming call permission notification means for notifying the communication control device of information including a temporary incoming call permission number for temporarily permitting an incoming call. In a communication control device that intervenes between a call terminal and a call control device and relays a call control signal that is transmitted and received between the call terminal and the call control device.
When information indicating the incoming call rejection setting is received from the call terminal, the incoming call rejection management means for managing the incoming call rejection of the call terminal while retaining the registration of the call terminal in the call control device, and the incoming call rejection management means.
It is provided with a communication control means for transmitting a call signal to the call terminal when the call connection request signal addressed to the call terminal in the call rejection is received from the call control device.
A communication control device, characterized in that, when the communication control means receives an incoming call rejection signal for rejecting an incoming call from the call terminal, the communication control means does not respond to the call connection request signal from the call control device. When the incoming call rejection management means receives information including a temporary incoming call permission number for temporarily permitting an incoming call from the calling terminal, the incoming call rejection management means manages the temporary incoming call permission number in association with the identification information of the calling terminal.
When the communication control means receives a call connection request signal addressed to the call terminal in the call rejection from the call control device, the call signal is transmitted to the call terminal when the caller ID is the temporary call permission number. The communication control device according to claim 5, wherein the call connection request signal is not answered when the caller ID is not the temporary incoming call permission number. A computer mounted on a call terminal that exchanges call control signals with a call control device via a communication control device.
When the incoming call rejection mode is set, the incoming call rejection setting means for notifying the communication control device of the information indicating the incoming call rejection setting, and the incoming call rejection setting means.
In the call rejection mode, when the caller ID of the call signal received from the communication control device is not a specific call permission number, it functions as a call rejection determination means for returning the call rejection signal to the communication control device. A calling program characterized by letting you do it. A computer mounted on a communication control device that is interposed between a call terminal and a call control device and relays a call control signal transmitted and received between the call terminal and the call control device.
When information indicating the incoming call rejection setting is received from the call terminal, the incoming call rejection management means for managing the incoming call rejection of the call terminal while retaining the registration of the call terminal in the call control device, and the incoming call rejection management means.
When a call connection request signal addressed to the call terminal in the call rejection is received from the call control device, it functions as a communication control means for transmitting the call signal to the call terminal.
A communication control program characterized in that when the communication control means receives an incoming call rejection signal for rejecting an incoming call from the call terminal, the communication control means does not respond to the call connection request signal from the call control device. In a communication method in which a call terminal and a call control device exchange call control signals via a communication control device.
When the incoming call rejection mode is set, the call terminal notifies the communication control device of information indicating the incoming call rejection setting.
The communication control device is
When the information indicating the call rejection setting is received from the call terminal, the call rejection of the call terminal is managed while the registration of the call terminal in the call control device is retained.
When the call connection request signal addressed to the call terminal in the call rejection is received from the call control device, the call signal is transmitted to the call terminal.
When the call terminal does not have a specific incoming call permission number for the call signal received from the communication control device, the call terminal returns an incoming call rejection signal to the communication control device.
A communication method, characterized in that, when the communication control means of the communication control device receives the incoming call rejection signal, it does not respond to the call connection request signal from the call control device.

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