JP2001119405A - Ip telephone system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an IP telephone system that warrants the quality of communication of an IP voice LAN terminal without being affected by communication congestion from a data LAN terminal. SOLUTION: In the IP telephone system consisting of a voice channel 4 for transmission of voice information, a data channel 5 for transmission of data, the IP voice LAN terminal 2 that transmits/receives voice information by an IP packet, the data LAN terminal 3 that transmits/receives data other than voice data, and an IP telephone master unit 1, the IP telephone master unit 1 is provided with connects 11a, 11b to which the IP voice LAN terminal 2 and the data LAN terminal 3 are respectively connected, with a voice exclusive HUB section 12 to transfer voice IP packets, and with a data exclusive HUB section 13. The IP voice LAN terminal 2 is connected to the voice channel 4 via the voice exclusive HUB section 12 and the data LAN terminal 3 is connected to the data channel 5 via the data exclusive HUB section 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an IP (Internet
rotocol) I consisting of telephone main unit and IP voice LAN terminal
It relates to a P telephone system.

[0002]

2. Description of the Related Art Present IP telephone main unit and IP voice LAN
In an IP telephone system (Ethernet) including terminals, various methods for avoiding data destruction due to data collision (collision) have been proposed. One of the methods is CSMA / CD (Carrier Sense Multiple A).
A method called ccess with Collision Detection, which avoids data destruction due to data collision, checks whether data is flowing and sends data when it detects that it is not flowing. Multiple terminals started sending data at the same time. When a collision is detected, try to resend after waiting for a random number time if a collision is detected. When it reaches this point, it stops retransmission processing and notifies the host of the failure, thereby preventing data destruction due to data collision.

However, in this method, it is premised that a collision occurs, and each terminal tries to transmit data freely. Therefore, the probability of collision increases as the number of terminals increases. The time is created and the data is delayed. When the predetermined upper limit of the number of retransmissions is reached, the retransmission process is stopped, so that there is a problem that the data may not be transmitted to the other party.

An outline of the configuration of a conventional IP telephone system will be described with reference to FIG. The IP telephone system uses IP voice L
AN terminal 2 and data LAN terminal 3 and voice line 4
And the data line 5 via the IP telephone main unit 1.

The IP telephone main unit 1 includes a connector 11a to which the IP voice LAN terminal 2 is connected, and a data LAN terminal 3
11b, HUB unit 13, and IP
It comprises a routing / main processing unit 14, a routing table storage memory 15, a voice conversion unit 16, a voice line interface unit 17, and a data line interface unit 18.

This IP telephone system has the following premise. The pin arrangement of the Ethernet (registered trademark) connector of the IP voice LAN terminal 2 uses a portion used in normal Ethernet. The LAN cable C21 and the LAN cable C31 are configured by general Ethernet cables.

The connector 11a is connected to a LAN cable C21.
And the IP voice LAN terminal 2 is connected via
It is connected to the HUB unit 13 via a physical connection C11a. The connector 11b is connected to the data LAN terminal 3 via the LAN cable C31, and is also connected to the HUB unit 13 via the physical connection C11b.

The HUB unit 13 and the IP routing / main processing unit 14 are connected via a physical connection C13. The IP routing / main processing unit 14 and the voice conversion unit 16 are connected via a physical connection C15. The audio converter 16 and the line interface 17 for audio are connected via a physical connection C16. The IP routing / main processing unit 14 and the data line interface unit 18 are connected via a physical connection C17.

The audio line interface unit 17 is connected to the audio line 4 via a physical connection C41. The data line interface 18 is connected to the data line 5 via a physical connection C51.

The IP telephone main unit 1 functions as a host for a terminal.

The IP voice LAN terminal 2 means a LAN terminal for exchanging voice by IP packet, and has a function of a telephone terminal.

The data LAN terminal 3 means a LAN terminal device other than the IP voice LAN terminal 2.

The voice line 4 is a line for transmitting and receiving voice, and a voice device such as a telephone is connected via this line.

The data line 5 is a line for transmitting and receiving data, and a data device such as a router is connected through the line.

The connector 11a is connected to the IP voice LAN terminal 2
Alternatively, it is an Ethernet connector for connecting the data LAN terminal 3. The connector 11b is a connector 11a
This is an Ethernet connector for connecting the IP voice LAN terminal 2 or the data LAN terminal 3 with the same function as the above.

The HUB unit 13 is an Ethernet HUB to which one or a plurality of IP voice LAN terminals 2 or data LAN terminals 3 are connected, and has a plurality of Ethernet ports.
a, the connector 11b, and the IP routing / main processing unit 14 are connected.

The IP routing / main processing unit 14 includes:
This is a means for performing IP routing processing in the IP telephone main unit 1, controls peripheral parts such as the voice line interface unit 17 and the data line interface unit 18, reads connection information from the routing table storage memory unit 15, The transmission route of the Ethernet packet is determined based on the IP address, the transmission process is performed, and when the routing table change information is received, the process of changing the content of the routing table storage memory unit 15 according to the content is executed.

Routing table storage memory unit 15
Stores a table including general IP routing table information.

The voice conversion unit 16 is an IP voice LAN terminal 2
And the like, and has a function of mutually converting the form of the voice information in the IP packet and the form of the voice information handled by the voice line 4.

The audio line interface 17 functions as an interface for connecting to the audio line 4.

The data line interface 18 functions as an interface for connecting to the data line 5.

The LAN cable C21 for connecting the IP voice LAN terminal 2 is configured using a general Ethernet cable.

The LAN cable C31 for connecting the data LAN terminal 3 is configured using a general Ethernet cable.

The physical connection C11a between the connector 11a and the HUB unit 13 is connected to the HUB unit 13 without discrimination whether the LAN terminal connected to the connector 11a is the data LAN terminal 3 or the IP voice LAN terminal 2. Similarly, the physical connection C11b between the connector 11b and the HUB unit 13 is based on the HUB without discriminating whether the LAN terminal connected to the connector 11b is the data LAN terminal 3 or the IP voice LAN terminal 2.
Connect to section 13.

A physical connection C 13 between the HUB unit 13 and the IP routing / main processing unit 14 connects one of the Ethernet ports of the HUB unit 13 to the IP routing / main processing unit 14.

In the physical connection C15 between the IP routing / main processing unit 14 and the voice conversion unit 16, the IP voice LA
Information in the form of voice information set in an IP packet handled by the N terminal 2 or the like is exchanged.

In the physical connection C17 between the IP routing / main processing unit 14 and the line interface unit 18,
P packets are exchanged. In the physical connection C16 between the voice conversion unit 16 and the voice line interface unit 17,
Information in the form of audio information handled by the audio line 4 is exchanged. The physical connection C41 between the audio line interface unit 17 and the audio line 4 is constituted by a general line connection cable. The physical connection C51 between the data line interface unit 18 and the data line 5 is configured by a general line connection cable.

Hereinafter, an operation example of the IP telephone system having such a configuration will be described.

<Mode of Connecting IP Voice LAN Terminal 2 to IP Telephone Main Device 1> IP voice LAN terminal 2 is connected to connector 11a or connector 11b. By this connection, the IP voice LAN terminal 2 connects the connection C11a (when connected to the connector 11a) or the connection C11b (connector 1).
1b) and physically accommodated in the hub of the hub unit 13.

<Data LAN terminal 3 is connected to IP telephone main unit 1
To the connection> The data LAN terminal 3 is connected to the connector 11
a or the connector 11b. By this connection, the data LAN terminal 3 establishes connection C11a (connector 1
1a) or physically connected to the connection C11b (when connected to the connector 11b), and is automatically accommodated in the HUB of the HUB unit 13.

<Operation of IP Routing Main Processing Unit 14> The IP routing main processing unit 14
13, each time an IP packet input from the connection C15 or the connection C17 is transmitted, the routing table storage memory unit 15 is accessed to determine a transmission path.

That is, as a result of accessing the routing table storage memory unit 15, the input IP packet is transferred to the HUB side (the IP voice LAN terminal 2 or the data LAN
If the packet is for the terminal 3), the transmission connection C13 on the HUB unit 13 side is selected and transmitted.

As a result of accessing the routing table storage memory 15, if the input IP packet is a packet to the voice line 4, the voice connection 16 of the voice converter 16 is selected and output to the voice converter 16. And convert it to the form of audio information.

As a result of accessing the routing table storage memory section 15, if the input IP packet is a packet to the data line 5, the data line interface section 18 side transmission connection C17 is selected and output.

Data (incoming call) received from the voice line 4 for the first time is also output to the HUB unit 13 by selecting the transmission connection C13 on the HUB unit 13 side.

The data flow in the IP telephone system will be described below. <Operation when IP Voice LAN Terminal 2 is Inserted into Connector 11a> By connecting IP voice LAN terminal 2 to connector 11a via LAN cable C21, IP voice LAN terminal 2 is connected to H by connection C11a.
It is physically connected to the UB unit 13.

When an outgoing call operation is performed from the IP voice LAN terminal 2 to the voice line 4 by specifying a connection destination, an IP packet indicating an outgoing call from the IP voice LAN terminal 2 is transmitted to the LAN cable C
21 → Connector 11a → Connection C11a → HUB 13 →
The data is transmitted through a route of connection C13 → IP routing / main processing unit 14.

The IP routing / main processing unit 14
The IP packet transmitted from the IP voice LAN terminal 2 is processed, and it is determined by a specific rule that the destination is the voice line 4 side. IP routing main processing unit 14
Controls the voice line interface unit 17 to make a call to the designated connection destination and make a connection.

The IP routing / main processing unit 14
An IP packet indicating that the connection has been established with the designated connection destination is transmitted to the IP voice LAN terminal 2 that is the source. At this time, the IP packet is connected C13 → HUB 13 → connection C11a → connector 11a → LAN cable C21 → I
It is transmitted on the path of the P voice LAN terminal 2.

<IP voice LAN terminal 2 to voice line 4
Operation of Flowing Voice Information to> IP Packet having Voice Information Output from IP Voice LAN Terminal 2 is Connected to LAN Cable C2
The data is transmitted to the IP routing / main processing unit 14 via a route of 1 → connector 11a → connection C11a → HUB unit 13 → connection C13 → IP routing / main processing unit 14.

The IP routing / main processing unit 14 knows that the IP address of the IP voice LAN terminal 2 that is the source of the IP packet having the voice information is currently communicating with the voice line 4 side. I with this audio information
The P packet is transmitted to the voice conversion unit 16 via the connection C15.

The voice converter 16 converts the form of the voice information of the IP packet having the voice information into the form of the voice information handled by the voice line 4, and passes through the route of connection C 16 → voice line interface 17 → connection C 41. The voice information is transmitted to the line 4.

<From the voice line 4 to the IP voice LAN terminal 2
Operation of flowing voice information to> Voice information from voice line 4,
Connection C41 → Line interface unit 17 for audio → Connection C
The signal is transmitted to the voice conversion unit 16 via the path 16. The voice conversion unit 16 converts the transmitted voice information from the form of the voice information handled by the voice line 4 to the form of the voice information handled by the IP voice LAN terminal 2 and the like, and outputs the IP routing main data via the connection C15. The data is transmitted to the processing unit 14.

The IP routing / main processing unit 14
The transmitted voice information is converted into an IP packet,
The packet is transmitted to the partner LAN terminal currently communicating (the IP routing / main processing unit 14 knows the IP address of the partner LAN terminal currently communicating with the line 4). At this time, the IP packet is transmitted from the connection C13 to the HU.
The data is transmitted through the route of B section 13 → connection C11a → connector 11a → LAN cable C21 → IP voice LAN terminal 2.

<Operation for Disconnecting Communication between Voice Line 4 and IP Voice LAN Terminal 2> When a disconnection operation occurs on the voice line 4 side, an IP routing / main processing unit is passed through the line interface unit 17. 14 detects the disconnection, and transmits the IP packet instructing the disconnection to the other LAN terminal side (IP routing / main processing unit 1).
4 knows the IP address of the remote LAN terminal with which the line 4 is currently communicating). At this time, the IP packet is transmitted from connection C13 → HUB unit 13 → connection C11a → connector 11a → LAN cable C21 → IP voice LAN.
It is transmitted on the path of the terminal 2.

When communication is disconnected by operating the IP voice LAN terminal 2, an IP packet indicating disconnection is transmitted to the LAN cable C2.
The data is transmitted to the IP routing / main processing unit 14 via a route of 1 → connector 11a → connection C11a → HUB unit 13 → connection C13 → IP routing / main processing unit 14. The IP routing / main processing unit 14 transmits the IP packet indicating disconnection to the IP voice LAN terminal 2
Since it is known that the address is currently communicating with the voice line 4, the voice line interface unit 17 is controlled to disconnect.

<Operation when Data LAN Terminal 3 is Inserted into Connector 11b> When the data LAN terminal 3 is inserted into the connector 11b with the cable C31, the data LAN
The terminal 3 communicates with the data-only HUB unit 1 through the connection C11b.
3 is physically connected.

<Operation when there is an incoming call from the voice line 4> When there is an incoming call from the voice line 4 side, the IP routing
The main processing unit 14 detects the incoming call. This call is
When the IP voice LAN terminal 2 is connected to the connector 11a, the connection C13 → the HUB unit 13 → the connection C11a → the connector 11a → the IP voice L via the LAN cable C21.
The notification is sent to the AN terminal 2. When the IP voice LAN terminal 2 is connected to the connector 11b, the connection C13 → H
Notification is sent to the IP voice LAN terminal 2 via the UB unit 13 → connection C11b → connector 11b → LAN cable C31.

<Operation when IP packet addressed to data LAN terminal 3 is received from data line 5> The IP packet received from data line 5 is routed via data line interface 18 to IP routing. -Transmission to the main processing unit 14. This IP packet has data L
When the AN terminal 3 is connected to the connector 11a, the connection C13 → the HUB unit 13 → the connection C11a → the connector 11
a → Notified to the data LAN terminal 3 via the LAN cable C21, and when the data LAN terminal 3 is connected to the connector 11b, connection C13 → HUB unit 13 → connection C1
1b → connector 11b → notified to data LAN terminal 3 via LAN cable C31.

IP telephone main unit 1 having such a configuration
Is an IP voice LAN terminal 2 and a plurality of data LAN terminals 3
If they communicate simultaneously, the following problems occur. As shown in FIG. 7, since both the packet from the IP voice LAN terminal 2 and the packet from the data LAN terminals 3 (1) to 3 (3) are transmitted via the HUB unit 13 and the connection C13, the data LAN When the communication volume of the terminal 3 is large, the communication volume of the connection C13 is congested, and the communication volume of the data LAN terminal 3 affects the communication volume and delay of the IP voice LAN terminal 2, and the IP voice LAN terminal 2 delays the transmission of the audio data and adversely affects the transmission quality.

[0051]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems. In an IP telephone main unit accommodating an IP voice LAN terminal and a data LAN terminal, the communication congestion of the data LAN terminal causes It is an object of the present invention to prevent the traffic of an IP voice LAN terminal from being suppressed or causing a decrease in quality.

[0052]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a voice line for transmitting and receiving voice information, a data line for transmitting and receiving data, and an IP voice for transmitting and receiving voice information in IP packets. In an IP telephone system including a LAN terminal, a data LAN terminal that transmits and receives data other than voice, and an IP telephone main device that accommodates them, the IP telephone main device includes the IP voice LAN terminal and the data LAN terminal. A plurality of connectors to be connected, an audio-only HUB unit for transferring an IP packet for audio, and a data-only HUB unit for transferring a packet for data are provided, and the IP audio LAN terminal is connected via the audio-only HUB unit. An audio line is connected, and the data LAN terminal is connected to the data line via the data-dedicated HUB unit.

According to the present invention, in the above-mentioned IP telephone system, the connector is connected to a terminal normally used by one of the HUs.
B, a terminal that is not normally used is connected to the other HUB, and one of the IP voice LAN terminal and the data LAN terminal is connected to a normally used terminal of the connector, and the IP voice The other of the LAN terminal and the data LAN terminal is connected to an unused terminal of the connector.

According to the present invention, in the IP telephone system, an L terminal connected to a normally used terminal of the connector is used.
An AN terminal was the data LAN terminal, and a LAN terminal connected to a normally unused terminal of the connector was the IP voice LAN terminal.

According to the present invention, in the IP telephone system, the IP telephone main unit is provided with an IP in the IP telephone main unit.
An IP routing / main processing unit for performing a routing process and a routing table storage memory unit for storing a routing table are provided, and the routing table stores an IP address of the IP voice LAN terminal connected to the voice dedicated HUB unit. I did it.

According to the present invention, in the IP telephone system, a power supply unit is provided in the IP telephone main device, and phantom power is supplied to the IP voice LAN terminal connected to the IP telephone main device.

[0057]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An IP telephone system according to the present invention will now be described with reference to FIG.
The configuration of the telephone system will be described. The IP telephone system according to the present invention includes at least one IP voice LAN terminal 2
, A data LAN terminal 3, at least one voice line 4, and at least one data line 5 are housed in the IP telephone main unit 1. In this IP telephone system, an IP telephone main unit 1 and an IP voice LAN terminal 2
And the data LAN terminal 3 are all connected to the LAN. A terminal other than the IP voice LAN terminal 2 connected to the LAN is called a data LAN terminal 3.

The inside of the IP telephone main unit 1 of the present invention is separated into two LANs. One is a voice-only LAN to which only the IP voice LAN terminal 2 is connected, and the other is a data-only LAN to which the data LAN terminal 3 is connected.
It is.

With this configuration, the data L
It is possible to reduce the occurrence of delay of the IP voice LAN terminal 2 due to the influence of packet transmission and reception performed by the AN terminal 3,
Smooth packet transmission / reception of the IP voice LAN terminal 2 can be ensured without introducing S control.

Here, in this specification, the sound is
The information is not limited to general voice information, and does not allow a delay of more than a predetermined time in data transmission and reception.

First, a characteristic use form of the connector 11 used in the present invention will be described with reference to FIG. FIG. 2 (A)
FIG. 3 is a diagram showing a use state of pins of the connector 11, and an Ethernet connector (RJ-45) is used as the connector. The connectors normally used for Ethernet use pin numbers 1, 2, 3, and 6, and the remaining pin numbers 4, 5, 7,
8 is not used. In the present invention, as shown in FIG. 2C, the pin numbers 1, 2, 3, and 6 are used for connecting the data LAN terminal 3 and the data-dedicated HUB unit 13, and are shown in FIG. The remaining pin numbers 4, 5, 7, 8
It is used for connection between the IP voice LAN terminal 2 and the voice-only HUB unit 12.

This IP telephone system is configured on the premise of the following conditions. The pin arrangement of the Ethernet connector of the IP voice LAN terminal 2 uses a portion (4, 5, 7, 8) other than the portion used in the normal Ethernet. As the LAN cable C21 and the cable C31, general Ethernet cables are used. Portions (1, 2, 3, 6) used in a normal Ethernet in the pin arrangement of the connectors 11a and 11b are connected to the data-only HUB unit 1 by the connections C11a and C11b.
3 which are not used in the normal Ethernet in the pin arrangement of the connectors 11a and 11b (4
5, 7, 8) are connected to the audio-only HUB unit 12 through connections C12a and C12b.

The configuration of the IP telephone main unit 1 according to the present invention will be described with reference to FIG. The IP telephone main unit 1 has an IP voice L
A connector 11a to which the AN terminal 2 or the data LAN terminal 3 is connected;
A connector 11b to which the N terminal 3 is connected;
B unit 12, data-dedicated HUB unit 13, IP routing / main processing unit 14, routing table storage memory 15, voice conversion unit 16, voice line interface unit 17, data line interface unit 18
And a power supply unit 19.

IP telephone main unit 1 acts as a host for IP voice LAN terminal 2 and data LAN terminal 3.

The IP voice LAN terminal 2 is a LAN terminal that exchanges voice by IP packets and has a function as a telephone terminal.

The data LAN terminal 3 is a LAN terminal other than the IP voice LAN terminal 2.

The voice line 4 is a line for transmitting and receiving voice, and a voice device such as a telephone is connected through this line.

The data line 5 is a line for transmitting and receiving data, and a data device such as a router is connected via this line.

The connector 11a is connected to the IP telephone
This is a connector for connecting the P voice LAN terminal 2 or the data LAN terminal 3, and can use an Ethernet connector. The connector 11b has a function equivalent to that of the connector 11a, is a connector for connecting the IP voice LAN terminal 2 or the data LAN terminal 3 to the IP telephone main device 1, and can use an Ethernet connector. .

In FIG. 1, the IP audio LA is connected to the connector 11a.
Although the N terminal 2 is connected, the data LAN terminal 3 may be connected. Similarly, the IP voice LA is connected to the connector 11b.
N terminals 2 may be connected.

The connector 11a has pin numbers 1, 2, 3,
The connection C12 connected to the pin numbers 4, 5, 7, and 8 to the data-dedicated HUB unit 13 via the connection C11a connected to the connection C12
A is connected to the audio-only HUB unit 12 via a. Similarly, the connector 11b is connected to the data-dedicated HUB unit 13 via the connection C11b connected to the pin numbers 1, 2, 3, and 6.
It is connected to the audio-only HUB unit 12 via the connection C12b connected to the pin numbers 4, 5, 7, and 8.

The audio-only HUB unit 12 has a connection C12a,
It is connected to the connection C12b and to the IP routing / main processing unit 14 via the connection C14.
The audio-only HUB unit 12 is an Ethernet HUB to which only one or more IP audio LAN terminals 2 are connected,
A plurality of Ethernet ports are provided, and a connector 11a, a connector 11b,..., An IP routing / main processing unit 14, and a power supply unit 19 are connected to the Ethernet ports.

The data-only HUB unit 13 is connected to the connection C11
a, is connected to the connection C11b and to the IP routing / main processing unit 14 via the connection C13. The data-dedicated HUB unit 13 is an Ethernet HUB to which only one or a plurality of data LAN terminals 3 are connected, has a plurality of Ethernet ports, and has a connector 11a, a connector 11b,.
The routing / main processing unit 14 is connected.

The IP routing / main processing unit 14
The connection C1 is connected to the audio-only HUB unit 12 via the connection C14.
3 is connected to the data-dedicated HUB unit 13, to the voice conversion unit 16 via the connection C 15, and to the data line interface unit 18 via the connection C 17.

The IP routing / main processing unit 14
The following processing is performed. Control of peripheral units such as the voice line interface unit 17 and the data line interface unit 18; general IP routing processing and routing table update processing by accessing the routing table storage memory unit 15; The routing table indicating the data-dedicated HUB unit 13 is extended and the audio-dedicated HUB unit 1 is expanded.
Routing processing for managing the IP address of the LAN terminal connected to the second terminal.

Routing table storage memory unit 15
Contains general IP routing table information, and
I of the LAN terminal connected to the audio-only HUB unit 12
P address information (extending the routing table indicating the HUB side (12, 13)) is stored.

The voice conversion unit 16 is connected to the voice line interface unit 17 via the connection C16,
The form of voice information in the IP packet handled by the AN terminal 2 and the like and the form of voice information handled by the voice dedicated line 4 are mutually converted.

The audio line interface 17 is an interface for connecting to the audio converter 16 and the audio line 4, and is connected to the audio line 4 via the connection C41.

The data line interface unit 18
This is an interface for connecting the P routing / main processing unit 14 to the data line 5, and is connected to the data line 5 via the connection C51.

The power supply section 19 supplies power to the IP voice LAN terminal 2 via the voice dedicated HUB section 12.

The connection C11a is a physical connection between the connector 11a and the data-only HUB unit 13.
The pin numbers 1, 2, 3, and 6 of a
When the LAN terminal connected to the connector 11a is the data LAN terminal 3, the connection of the connection C11a is enabled and the connection of the connection C12a is disabled at the same time. Similarly, the connection C11b is connected to the connector 11b and the data-only H
This is a physical connection of the UB unit 13, wherein the pin numbers 1, 2, 3, and 6 of the connector 11 b are connected to the data-dedicated HUB unit 13 and the LAN terminal connected to the connector 11 b is the data LAN terminal 3. , The connection of the connection 11b becomes valid and the connection of the connection 12b becomes invalid at the same time.

The connection C12a is a physical connection between the connector 11a and the audio-only HUB unit 12, and is connected to the connector 11a.
Are connected to the audio-only HUB unit 12, and when the LAN terminal connected to the connector 11a is the IP audio LAN terminal 2, the connection of the connection C12a becomes valid and at the same time the connection C11a Connection is invalidated.
The connection C12b is connected to the connector 11b and the audio-only HUB unit 1.
2, when the pin numbers 4, 5, 7, and 8 of the connector 11b are connected to the audio-only HUB unit 12, and the LAN terminal connected to the connector 11b is the IP voice LAN terminal 2. , The connection of the connection C12b becomes valid, and at the same time, the connection of the connection C11b becomes invalid.

The connection C 13 is a physical connection between the data dedicated HUB unit 13 and the IP routing / main processing unit 14, and connects one of the Ethernet ports of the data dedicated HUB unit 13 to the IP routing / main processing unit 14. .

The connection C14 is connected to the audio-only HUB unit 12
This is a physical connection of the P routing main processing unit 14, and connects one of the Ethernet ports of the audio dedicated HUB unit 12 to the IP routing main processing unit 14.

The connection C 15 is a physical connection between the IP routing / main processing unit 14 and the voice conversion unit 16,
Information in the form of voice information in IP packets handled by the P voice LAN terminal 2 and the like is exchanged.

The connection C16 is a physical connection between the voice conversion unit 16 and the voice line interface unit 17, and information in the form of voice information handled by the voice line 4 is exchanged.

The connection C17 is a physical connection between the IP routing / main processing unit 14 and the data line interface unit 18, and exchanges IP packets.

The LAN cable C21 and the LAN cable C31 are LAN cables connecting the IP voice LAN terminal 2 and the data LAN terminal 3 to the IP telephone main unit 1, and are composed of general Ethernet cables using all terminals. Is done.

The IP voice LAN terminal 2 uses the pins shown in FIG. 2B, and the data LAN terminal 3 uses the pins shown in FIG.
The pins shown in are used.

The connection C41 is a physical connection between the audio line interface 17 and the audio line 4, and uses a general line connection cable.

The connection C51 is a physical connection between the data line interface 18 and the data line 5, and uses a general line connection cable.

The operation mode and data flow in the IP telephone system having such a configuration will be described.

<Connect the IP voice LAN terminal 2 to the connector 11a
When IP Voice LAN Terminal 2 is Connected to LA
When plugged into connector 11a with N cable C21, IP
The voice LAN terminal 2 connects to the voice-only HU via the connection C12a.
It is physically connected to the B section 12. At this time, connection C11
The connection a becomes invalid.

The IP voice LAN terminal 2 is activated by power supply from the power supply unit 19 via the LAN cable C21 and enters an operating state. Immediately after the start, the IP voice LAN terminal 2
AN cable C21 → connector 11a → connection C12a →
Via the audio-only HUB unit 12 → connection C14, the IP routing / main processing unit 14 is requested to allocate its own IP address by DHCP or the like.

The IP routing / main processing unit 14
After the IP address of the P voice LAN terminal 2 is assigned, the fact that the IP address is the address of the terminal connected to the voice dedicated HUB unit 12 is recorded in the routing table storage memory unit 15.

<IP voice LAN terminal 2 to voice line 4
Mode when Calling> When an outgoing call operation is performed by specifying a connection destination at the IP voice LAN terminal 2, an IP packet indicating the call is sent from the LAN cable C21 → connector 11a → connection C1.
2a → HUB unit for voice 12 → I via connection C14
The data is transmitted to the P routing / main processing unit 14. IP
The routing / main processing unit 14 processes the transmitted IP packet, and determines that the transmission destination is the voice line 4 by a specific rule.

The IP routing / main processing unit 14
The voice line interface unit 17 is controlled to make a call to the connection destination specified by the IP packet, thereby making a connection.
The IP routing / main processing unit 14 sends an IP packet indicating connection to the designated connection destination to the source IP address.
The data is transmitted to the voice LAN terminal 2.

At this time, the IP routing / main processing unit 14 accesses the routing table storage memory unit 15 and sets the IP address of the source LAN terminal to the voice-only H
Acquire that the terminal is connected to the UB unit 12,
Connection C14 → HUB unit 12 for voice only → Connection C12a → Connector 11a → LAN cable C21 → IP voice LAN
The route of the terminal 2 is determined and transmission is performed.

<IP voice LAN terminal 2 to voice line 4
Mode in which audio information is sent to the LAN> An IP packet having audio information transmitted from the IP audio LAN terminal 2 is transmitted to the LAN cable C2.
The data is transmitted to the IP routing / main processing unit 14 through a route of 1 → connector 11a−connection C12a → audio-only HUB unit 12 → connection C14.

The IP routing / main processing unit 14 knows that the IP address of the IP voice LAN terminal 2 which is the source of the IP packet having the transmitted voice information is currently communicating with the voice line 4 side. Therefore, the IP packet having the voice information is transmitted to the voice conversion unit 16 via the connection C15.

The voice converter 16 converts the voice information form of the IP packet having voice information into the voice information form handled by the voice line 4, and passes through the route of connection C 16 → voice line interface section 17 → connection C 41. The voice information is transmitted to the voice line 4.

<From the voice line 4 to the IP voice LAN terminal 2
Mode of Flowing Voice Information to Voice> Voice Information from Voice Line 4 is Connected C41 → Voice Line Interface Unit 17—Connection C1
6, the voice conversion unit 16 converts the transmitted voice information from the voice information handled by the voice line 4 to the voice information handled by the IP voice LAN terminal 2 or the like. And transmits it to the IP routing / main processing unit 14 via the connection C15.

The IP routing / main processing unit 14
The transmitted voice information is converted into an IP packet,
The IP voice LAN terminal 2 (I
The P routing / main processing unit 14 attempts to transmit to the IP line of the IP voice LAN terminal 2 with which the voice line 4 is currently communicating), but at this time, accesses the routing table storage memory unit 15. , The IP address of the IP voice LAN terminal 2 is
Acquires that the terminal is connected to
→ HUB unit for voice 12 → Connection C12a → Connector 11
a → The route of the LAN cable C21-IP voice LAN terminal 2 is determined and transmission is performed.

<From the voice line 4 to the IP voice LAN terminal 2
Aspect when disconnecting communication with the terminal> When a disconnection operation occurs on the voice line 4 side, the IP routing / main processing unit 14 detects the disconnection via the voice line interface unit 17 and instructs disconnection. IP voice LAN terminal 2 (IP routing / IP
The main processing unit 14 controls the I which the voice line 4 is currently communicating with.
At this time, the IP address of the IP voice LAN terminal 2 is connected to the voice-only HUB unit 12 by accessing the routing table storage memory unit 15. Acquisition terminal is connected, connection C14 → HUB for audio only
The route of the section 12 → connection C12a → connector 11a → LAN cable C21 → IP voice LAN terminal 2 is determined and transmission is performed.

<IP voice LAN terminal 2 to voice line 4
When communication is cut off by operation of IP voice LAN terminal 2, IP packet indicating disconnection is transmitted from LAN cable C21 → connector 11a → connection C
The data is transmitted to the IP routing / main processing unit 14 via the HUB 12a → the HUB unit 12 → the connection C14. I
The P routing / main processing unit 14 outputs an IP indicating disconnection.
Since it is known that the IP address of the IP voice LAN terminal 2 that has transmitted the packet is currently communicating with the voice line 4, the voice line interface 17 is controlled to disconnect.

<Mode when Data LAN Terminal 3 is Inserted into Connector 11b> When the data LAN terminal 3 is inserted into the connector 11b with the cable C31, the data LAN terminal 3 is connected to the data-only HUB section 13 via the connection C11b.
Is physically connected to At this time, the connection of the connection C12b becomes invalid.

Since various types of data LAN terminals 3 are assumed, the activation method and the IP address assignment method are performed according to the respective specifications.

When an IP address allocation request is received from the data LAN terminal 3, the IP routing / main processing unit 14 allocates the IP address of the data LAN terminal 3. At this time, since the data-dedicated HUB unit 13 is selected as the default connection on the HUB side (12, 13),
The routing table storage memory unit 15 does not record IP address information.

<Mode when there is an incoming call from the voice line 4 side> When there is an incoming call from the voice line 4 side, the IP routing / main processing unit 14 detects the incoming call through the voice line interface unit 17. Since the incoming call is communication related to voice, the incoming call is notified to the voice-only HUB unit 12 side.

<Aspect when IP Packet is Received from Data Line 5> When an IP packet is received from the data line 5 side, the IP packet is sent to the IP routing / main processing unit 14 through the data line interface unit 18. Is transmitted to the IP routing / main processing unit 14
Accesses the routing table storage memory unit 15, reads out the connection information for the IP address specified as the destination, and determines the route for transmitting the received IP packet. At this time, the routing table storage memory unit 1
By referring to the extended portion in the connection information indicating the HUB side (12, 13) of No. 5, an IP address that does not correspond to the IP address information of the LAN terminal connected to the audio-only HUB unit 12 is set as a default. It is determined that the terminal is connected to the data-only HUB unit 13.

<Mode when IP Voice LAN Terminal 2 is Connected to IP Telephone Main Device 1> When the IP voice LAN terminal 2 is connected to the connector 11a or the connector 11b, the IP voice LAN terminal 2 is connected to the connection C12a according to the above preconditions.
(When connected to the connector 11a) or the connection C12b (when connected to the connector 11b), and is automatically accommodated in the HUB of the audio-only HUB unit 12.

Power supply from the power supply unit 19 to the IP voice LAN terminal 2 is started via the connection C12a or connection C12b, the IP voice LAN terminal 2 is activated, and the DHCP
The IP address of the IP voice LAN terminal 2 is assigned by such a procedure. The assigned IP address is recorded in the routing table storage memory unit 15 together with the attribute.

<Data LAN terminal 3 is connected to IP telephone main unit 1
When data LAN terminal 3 is connected to connector 11a or connector 11b, data LA
N terminal 3 is connected C11a (when connected to connector 11a)
Alternatively, it is physically connected to the connection C11b (when connected to the connector 11b) and is accommodated in the HUB of the data-dedicated HUB unit 13.

<Aspect of IP Routing Main Processing Unit 14> The IP routing main processing unit 14
13, each time an IP packet input from connection C14, connection C15, or connection C17 is transmitted, the routing table storage memory unit 15 is accessed to determine a transmission path.

As a result of accessing the routing table storage memory unit 15, the input packet is transmitted to the HUB side (I
If the packet is for the P voice LAN terminal 2 or the data LAN terminal 3), the voice-only HUB unit 12 or the data-only HUB unit 13 is selected as a transmission path.

As a result of accessing the routing table storage memory unit 15, the input packet is
If the packet is directed to the side, the voice converter 16 is selected as the transmission path, and the form of the voice information is converted into a form suitable for the voice line.

As a result of accessing the routing table storage memory unit 15, if the input packet is a packet to the data line 5, the data line interface unit 18 is selected as the transmission path.

The data (incoming call) received from the voice line 4 for the first time also selects the voice-only HUB unit 12 as a transmission path.

The IP telephone main unit 1 and the IP voice LAN terminal 2 perform operations unique to the present invention described below in cooperation with each other to prevent data collision occurring in the LAN in the voice-only HUB unit 12. Has a function. As a result, the packet transmission / reception delay of the IP voice LAN terminal 2 due to data collision can be minimized.

A method for preventing collision of Ethernet data in the audio-only HUB unit 12 will be described below.

Data collision does not occur if only one of the terminals on the Ethernet transmits data and a plurality of terminals do not transmit data at the same time. As this method, there is a polling method.

In the polling method, IP routing and
The main processing unit 14 transmits a packet to each terminal connected to the audio-only HUB unit 12 at regular intervals. The terminal connected to the audio-only HUB unit 12 always performs reception, but performs transmission only immediately after receiving a packet addressed to itself from the IP routing / main processing unit 14 so that data transmission does not collide with another terminal. To

According to this method, the terminal uses a voice-only HUB.
When connected to the unit 12, add to the packet transmission list,
When the terminal is disconnected from the audio-only HUB unit 12, a process of deleting the terminal from the packet transmission list is required.

In this system, when a plurality of IP telephone main units 1 are connected as shown in FIG. 3, the device that sends out a packet at regular intervals is one of the IP telephone main units 1. Must be settable.

This method has an advantage that the process of disconnecting a terminal and deleting it from the packet transmission list may be performed relatively slowly. Further, this method has an advantage that both the IP telephone main unit and the terminal have relatively simple processing. However, in this method, there is a problem that the polling packet must be repeatedly transmitted several times by the terminal at all times.

As another method for avoiding data collision,
There is a time division method. In this system, the terminal is a voice-only HUB
When connected to the unit 12, a list is prepared to be added to the terminal number list and to be deleted from the terminal number list when the terminal is disconnected from the audio-only HUB unit 12. Each terminal is notified of the terminal number. The terminal number is assigned a number that does not overlap with the number assigned to another terminal, and data transmission possible time is calculated and assigned from the terminal number to prevent data transmission from colliding with another terminal. The IP routing / main processing unit 14 is a voice-only HUB unit 12
A packet for timing is transmitted to all terminals connected to the terminal at regular time intervals. Each terminal transmits data when a data transmission available time calculated based on the terminal number has elapsed from a time when a packet for timing is received from the IP routing / main processing unit 14.

According to this time division method, packets for timing need to be wider and smaller in number than the polling method, and the process of disconnecting a terminal and deleting it from the packet transmission list may be performed relatively slowly. Although there is an advantage, there is a problem that a gap time for play is required between transmission packets in consideration of individual differences of timers.

Another method for avoiding data collision is a packet monitoring method. This method prepares a list to be added to the address list when the terminal is connected to the audio-only HUB unit 12 and deleted from the address list when the terminal is disconnected from the audio-only HUB unit 12. IP
The routing / main processing unit 14 performs, for each terminal,
The address of another terminal registered in this address list is notified. However, the same address is not notified to a plurality of terminals. The terminal connected to the audio-only HUB unit 12 always performs reception, further monitors data flowing through the Ethernet, and can transmit data only immediately after transmission of the terminal having the notified address is completed. Even when there is no data to be transmitted, dummy data (meaningless data) is transmitted. By transmitting data only immediately after a terminal having the notified address has transmitted data, data transmission does not collide with another terminal.

According to this packet monitoring method, there is no need for a packet to be sent from the IP routing / main processing unit 14 for polling or timing, and the terminal has the advantage of relatively simple processing. However, in this method, the terminal must transmit dummy data even when there is no data to be transmitted, and the process of connecting and disconnecting the terminal is complicated, and especially when the terminal is disconnected, the terminal is immediately deleted from the address list. However, there is a problem that a delay occurs if the corresponding terminal is not notified. Also, care must be taken that the address list is always a ring.

According to the present invention, the IP voice LAN terminal 2 is connected to the voice-only LAN in the IP telephone main unit 1 by using the pins of the Ethernet cable which are not generally used, and the data LAN terminal 3 is connected to the Ethernet cable. The terminal connected to the voice line and the terminal connected to the data line are connected to the Ethernet cable so that the terminal connected to the data line in the IP telephone main unit 1 is connected by using the commonly used pins. The IP voice LAN terminal 2 is connected to the connector 11 of the IP telephone main unit 1 so that the data LAN terminal 3
LAN dedicated to voice separate from LAN dedicated to data to be connected
Are connected separately. Therefore, according to the present invention, the IP voice LAN terminal 2 and the data LAN terminal 3 are automatically allocated and connected to the voice-only LAN and the data-only LAN, respectively.

In the present invention, the routing table of IP telephone main unit 1 is expanded. That is,
The routing table of the present invention is different from the conventional RIP in that the address of the IP voice LAN terminal 2 is added to the routing table. As a result, the IP voice L connected to the IP telephone
The AN terminal 2 and the data LAN terminal 3 are physically separate LAs.
N but connected to the same segment LA
N, it is not necessary to set an address conscious of the IP voice LAN terminal 2 or the data LAN terminal 3. That is, if the LAN is separated, the segment is separated and the area is separated by the address and the subnet mask.

A mode in which a plurality of such IP telephone main units are connected in parallel will be described with reference to FIG. In this embodiment, a case will be described in which an IP voice LAN terminal is connected to both IP telephone main devices, and a call is made between the two IP voice LAN terminals.

The connector 11b of the IP telephone main unit 1a and the connector 11a of the IP telephone main unit 1b having the same configuration as shown in FIG. 1 are connected by the Ethernet cross cable 6. In this case, the connector of the Ethernet cross cable 6 is such that the input and output of the terminals of pin numbers 1, 2, 3, and 6 that are normally used are cross-connected, and the terminals of pin numbers 4, 5, 7, and 8 that are not normally used are also connected. Input and output are cross-connected.

With this connection, the audio-only HUB unit 12 of the IP telephone main unit 1a and the audio-only HUB unit 12 of the IP telephone main unit 1b are connected via the Ethernet cross cable 6. Information and data-only HUB unit 1 flowing to audio-only HUB unit 12 of the device
The IP telephone main unit 1b can be added while maintaining the separation state of the information flowing to the IP telephone 3, and a call between the IP voice LAN terminals accommodated in each IP telephone main unit becomes possible.

In this method, the connector of the Ethernet cross cable 6 for connecting the respective IP telephone main units is connected to ordinary terminals (pin numbers 1, 2, 3, and 6), so that the respective IP telephone main units are connected. Data can be transmitted and received between the data LAN terminals accommodated in the LAN.

Further, according to this connection, when the amount of transmission / reception from the LAN terminal accommodated in one IP telephone main unit exceeds the capacity of the line, the connection is made via the line of the other IP telephone main unit. You can talk with the other party's terminal.

The IP telephone main unit 1 supplies power to the IP voice LAN terminal 2 via the Ethernet cable C21.
The IP voice LAN terminal 2 has a mechanism capable of receiving the power. This eliminates the need to prepare a separate power supply for the IP voice LAN terminal 2, and facilitates installation of the IP voice LAN terminal 2.

As shown in FIG. 3, when a plurality of IP telephone main units are connected in parallel, the power supply unit 19 has a mechanism in which the power supply units do not collide with each other. For example, the power supply unit 19 of each of the IP telephone main devices 1a and 1b
The load is monitored for each connector, and when the load suddenly increases, it is determined that the IP telephone main unit is connected to the connector in parallel, and power supply to the connector is stopped. Power supply to the connector resumes when the Ethernet synchronization of the connector is lost.

Referring to FIG. 4, an embodiment in which an IP telephone main unit and an IP telephone extension port having a plurality of connectors are cascade-connected will be described.

In this IP telephone system, all terminals (pin numbers 1, 2, 3, 6, 4, 5, 7, 8) are connected to connector 11b of IP telephone main unit 1a having the configuration shown in FIG.
An IP telephone extension port 1c is connected by using an Ethernet cable 7 having a connector using. The IP telephone extension port 1c is connected to a plurality of connectors 11
a, 11b, and 11c, a voice-only HUB 12, a data-only HUB 13, and a power supply unit 19.

An IP voice LAN terminal 2 is connected to the connector 11a.
And the data LAN terminal 3 are connected via the LAN cable C21. The IP voice LAN terminal 2 is connected to the connector 11b.
And a data LAN terminal 3 are connected via a LAN cable C31. The connector 11a has pin numbers 4, 5, 7,
8 is connected to the audio-only HUB unit 12 via the connection C12a, and the pin numbers 1, 2, 3, and 6 are connected to the data-only HUB unit 13 via the connection C11a. Similarly, in the connector 11b, the pin numbers 4, 5, 7, and 8 are connected to the connection C1.
2b is connected to the audio-only HUB unit 12, and the pin numbers 1, 2, 3, and 6 are connected to the data-only HUB unit 13 via the connection C11b.

The connector 11b of the IP telephone main unit 1a and I
The connection with the connector 11c of the P telephone extension port 1c is connected by a general Ethernet cable 7 using all terminals.

The audio-only HUB section 12 is connected to the pin numbers 4, 5, 7, and 8 of the connector 11c,
The unit 13 is connected to pin numbers 1, 2, 3, and 6 of the connector 11c. The connector 11c includes the connectors 11a and 11b.
It uses the same Ethernet connector as the above, but only the input and output cross.

In a system having such a configuration, I
The audio-only HUB unit 12 of the P telephone main unit 1a and the audio-only HUB unit 12 of the IP telephone extension port 1c are connected to each other, and the data-only HUB unit 1 of the IP telephone main unit 1a is connected.
3 and the audio-only HUB units 13 of the IP telephone extension port 1c are connected to each other.

With this configuration, IP telephone extension port 1
c, the IP voice LAN terminal 2 is connected to the connector 11
a → connection C12a → audio-only HUB unit 12 → connection C15
→ Connector 11c → Ethernet net cable 7 → Connector 11b (1a) → Connection C12b → HUB for audio only
12 → connection C14 → IP routing / main processing unit 1
4 → connection C15 → voice conversion unit 16 → connection to voice line 4 via connection C16. Similarly, the data LAN terminal 3 connected to the IP telephone extension port 1c is connected to the connector 11a → connection C11a → data dedicated HUB unit 13 → connection C17 → connector 11c → Ethernet net cable 7 → connector 11b (1a) → connection C11b → It is connected to the data line 5 via the data-dedicated HUB 13 → connection C13 → IP routing / main processing unit 14 → connection C17 →.

Therefore, in the IP telephone main unit 1a and the IP telephone additional port 1c, it is possible to add an Ethernet port while separating the information flowing through the voice-only HUB unit 12 and the information flowing through the data-only HUB unit 13 from each other. Become.

The existing LA in the IP telephone main unit shown in FIG.
An aspect in which N is connected will be described with reference to FIG. In this embodiment, data L is connected to connector 11b of IP telephone main device 1a.
This is an example in which an existing LAN (HUB) 8 to which an AN terminal 3 is connected is connected using a general Ethernet connector.
According to this connection, the existing LAN 8 is connected to the data dedicated HUB unit 13 of the IP telephone main unit 1a, so that only the data LAN terminal 3 can be connected to the existing LAN 8 and below.

With the above-described configuration, according to the present invention, in the IP telephone system, specifically, the amount of packet transmission delay in the following communication is reduced. IP voice LAN terminal 2 @ external telephone (via voice line 4) IP voice LAN terminal 2 @ IP voice LAN terminal 2 (extension connection)

[0149]

According to the present invention, the IP telephone system having the above configuration has the following excellent effects. That is, when the IP voice LAN terminal 2 and the data LAN terminal 3 communicate simultaneously, a packet related to the IP voice LAN terminal 2 is transmitted and received by the voice dedicated HUB unit 12, and a packet related to the data LAN terminal 3 is transmitted to the data dedicated HUB. It is transmitted and received by the unit 13. IP voice LAN terminal 2
Since the packet related to the data LAN terminal 3 and the packet related to the data LAN terminal 3 physically flow in different places, the communication of the voice-only HUB unit 12 can be performed even when the communication amount of the data LAN terminal 3 is considerably large. It does not affect the quantity or delay.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating the configuration of an IP telephone system according to the present invention.

FIG. 2 is a diagram illustrating a method of using pins of an Ethernet connector used in the present invention.

FIG. 3 is a block diagram illustrating a modification of the IP telephone system of the present invention.

FIG. 4 is a block diagram illustrating another modification of the IP telephone system of the present invention.

FIG. 5 is a block diagram illustrating another modification of the IP telephone system of the present invention.

FIG. 6 is a block diagram illustrating a configuration of a conventional IP telephone system.

FIG. 7 is a view for explaining the flow of a conventional IP telephone system packet.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 IP telephone main unit 2 IP voice LAN terminal 3 Data LAN terminal 4 Voice line 5 Data line 11a Connector 11b Connector (having the same function as 11a) 12 Audio-only HUB section 13 Data-only HUB section 14 IP routing main Processing unit 15 Routing table storage memory unit 16 Audio conversion unit 17 Audio line interface unit 18 Data line interface unit 19 Power supply unit C11a Physical connection between connector 11a and data-only HUB unit 13 C11b Connector 11b and data-only HUB Physical connection of the unit 13 C12a Physical connection between the connector 11a and the audio-only HUB unit 12 C12b Physical connection between the connector 11b and the audio-only HUB unit 12 C13 Data-only HUB unit 13 and IP routing
Physical connection of the main processing unit 14 C14 Physical connection between the audio-only HUB unit 12 and the IP routing / main processing unit 14 C15 Physical connection between the IP routing / main processing unit 14 and the voice conversion unit 16 C16 voice conversion unit C17 Physical connection between the voice line interface unit 17 and the C17 Physical connection between the IP routing / main processing unit 14 and the data line interface unit 18 C21 LAN connecting the IP voice LAN terminal 2 and the data LAN terminal 3 Cable C31 LAN cable connecting IP voice LAN terminal 2 and data LAN terminal 3 C41 Physical connection between voice line interface unit 17 and voice line 4 C51 Physical line interface unit 18 for data and physical line 5 for data line Connection

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) // H04Q 3/58 104 H04L 13/00 303B 5K101 (72) Inventor Yuji Maekawa 24 Sakuraokacho, Shibuya-ku, Tokyo No. 4 F term in Nakayo Communication Equipment Co., Ltd. (reference) BB12 BB19 BB23 CC04 CC11 CC13 DD04 EE01 EE02 5K051 AA02 BB01 BB02 CC02 DD03 DD04 DD13 EE02 FF07 FF11 FF16 GG03 HH27 JJ11 KK01 5K101 KK20 LL05 MM06 NN21 NN40 NN41 RR17 SS07 SS08

Claims (5)

[Claims] 1. A voice line for transmitting and receiving voice information, a data line for transmitting and receiving data, an IP voice LAN terminal for transmitting and receiving voice information in IP packets, a data LAN terminal for transmitting and receiving data other than voice, In an IP telephone system including an IP telephone main unit accommodating these, a plurality of connectors for connecting the IP voice LAN terminal and the data LAN terminal to the IP telephone main unit, and a voice for transferring an IP packet for voice. A dedicated HUB section and a data dedicated HUB section for transferring data packets, connecting the IP voice LAN terminal to the voice line via the voice dedicated HUB section, and connecting the data LAN terminal to the data dedicated HUB. An IP telephone system connected to the data line via a communication unit. 2. The connector connects a normally used terminal to one of the HUB sections, connects a normally unused terminal to the other HUB section, and connects one of the IP voice LAN terminal and the data LAN terminal. 2. The device according to claim 1, wherein one of the terminals is connected to a normally used terminal of the connector, and the other of the IP voice LAN terminal or the data LAN terminal is connected to a normally unused terminal of the connector. The IP telephone system as described. 3. A LAN terminal connected to a normally used terminal of the connector is the data LAN terminal,
LA connected to an unused terminal of the connector
3. The IP telephone system according to claim 2, wherein N terminals are said IP voice LAN terminals. 4. An IP routing system for performing an IP routing process in the IP telephone main unit.
A main processing unit and a routing table storage memory unit for storing a routing table are provided, and the routing table stores an IP address of the IP voice LAN terminal connected to the voice dedicated HUB unit. The IP telephone system according to any one of claims 1 to 3, wherein 5. The power supply unit is provided in the IP telephone main unit, and power is supplied to the IP voice LAN terminal connected to the IP telephone main unit. 2. The IP telephone system according to claim 1.