JP2001339428A - Voice/data integrated routing device and voice/data integrated routing method to be used therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a voice/data integrated routing device capable of judging audio packet or deciding (priority control) transmission quality and capable of improving a speech quality. SOLUTION: An IP switch circuit 11 judges a transfer destination by reading the IP address information of IP packets from respective IP line circuits 12-14. A retrieval table 16 stores the destination information or the like of IP packets inputted from the respective IP line circuits 12-14 or the like. A gateway circuit 18 has a function for connecting the IP switch circuit 11 and a non-packet processing part 15 and converting the IP packet to the audio data or the like of 64 Kpbs and a function for converting these audio data to the IP packet. The non-packet processing part 15 has a time dividing switch function and an interface terminating function such as a non-packet type audio terminal 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an integrated voice / data routing apparatus and an integrated voice / data routing method used therefor, and more particularly to an exchange apparatus [PBX (private branch) for handling real-time data such as voice.
h exchange) etc.)).

[0002]

2. Description of the Related Art Conventionally, as this type of switching device, there is a voice data integrated switching system disclosed in Japanese Patent Application Laid-Open No. H11-252249. In this voice data integrated switching system, a MAC (Media Acc) is installed in the switching device.
ess Control) circuit and LANSW (local)
area switch circuit).

A MAC circuit has a function of processing a MAC frame from a voice terminal, and a LANSW circuit has
Switching is performed according to the MAC address included in the C frame.

According to the above integrated voice data exchange system, it is not necessary to separately install and install a LAN switch and an exchange device, or to provide different terminal transmission paths. Also, since audio packetization is realized by hardware, audio delay is small. Above all, voice data integrated exchange and voice terminal can be connected to local LAN such as intranet.
In the case of realizing the above, there is a sufficient transmission band, so that the audio delay is small. Further, a telephone and a data terminal can be accommodated in one line.

[0005]

Recently, a switching device and an IP (Internet Protocol) based on voice have been used.
ol) and other integrated technologies such as a router device based on a LAN. In particular, the birth of IP-based telephones and devices for mapping voice to IP has been influential.

[0006] Voice quality on the Internet has begun to be discussed, and how to improve voice quality on the Internet has become an important factor. Of course, to improve the voice quality, quality control on the terminal side is necessary, but it has been found that an important point is that control of the switching device constituting the network is essential.

[0007] For this reason, in the switching device, in order to control the transfer of the IP packet of the terminal, the function of determining the layer at the application level is considered to be differentiating. For example, in the technology described in the above-mentioned publication, since switching is performed based on the MAC address, it is not possible to determine even the application level such as voice. Therefore, when voice and non-voice are mixed, control by non-voice is performed. Delays and fluctuations occur, and it is impossible to control voice in real time.

Further, it is necessary to transmit all the subordinate voices connected to one MAC circuit, a broadcast frame signal from a data terminal, and the like to the LANSW circuit. Therefore, L
An ANSW circuit requires a very high-performance one. Furthermore, even if external network devices are integrated, there is a problem that an external router is required when the number of terminals increases or when connecting to a wide area network.

Accordingly, an object of the present invention is to solve the above-mentioned problems, to perform voice packet determination and transmission quality determination (priority control), etc., and to achieve voice / data integration that can improve speech quality. An object of the present invention is to provide a routing device and a voice / data integrated routing method used for the routing device.

[0010]

An integrated voice / data routing apparatus according to the present invention accommodates a non-packetized voice terminal and a line termination circuit for terminating a trunk line as required.
An integrated voice / data routing device for performing integrated voice / data routing in a switching device having an exchange circuit for exchanging the non-packetized data, wherein the IP (Internet Protocol) of the packetized voice terminal
1) a plurality of IP line circuits for terminating packets and performing transmission / reception processing of the IP packets; and an IP switch circuit for connecting the plurality of IP line circuits and performing routing processing based on addresses and identification information of the IP packets. ,
A search table circuit for searching for the address and the identification information; and a gateway circuit located between the IP switch circuit and the switching circuit for assembling and disassembling the IP packet, The data and the packetized voice data are interconnected.

An integrated voice / data routing method according to the present invention accommodates a non-packetized voice terminal and a line terminating circuit for terminating a trunk line as required, and includes a switching circuit provided with a switching circuit for exchanging the non-packetized data. An integrated voice / data routing method for performing integrated voice / data routing within a network, comprising:
(Internet Protocol) Multiple I / Os that terminate a packet and perform transmission / reception processing of the IP packet
A P-line circuit is connected to an IP switch circuit, the IP switch circuit performs a routing process based on the address and identification information of the IP packet, and performs a search for the address and identification information using a search table circuit.
By assembling and disassembling the IP packet in a gateway circuit disposed between the switch circuit and the switching circuit, the non-packetized voice data and the packetized voice data are interconnected. I have.

That is, the integrated voice / data routing device of the present invention is a switching device (such as a PBX) that handles real-time data such as voice in an IP switching circuit, a search table circuit, a gateway circuit, and an I / O circuit.
A P line circuit is provided.

More specifically, the integrated voice / data routing device of the present invention is built in the switching device, so that the control unit links the existing switching function (non-packet processing unit) with each of the above circuits. It becomes possible to control. In this case, the IP switch circuit performs switching based on the IP layer and information on the IP layer and higher.

Therefore, by determining the identification information described in the upper layer of the IP packet and performing the switching process, it is possible to determine the voice packet and the transmission quality (priority control), etc. It can be improved.

In addition, by linking with the non-packet processing unit, the connection with the non-packet processing unit enables cooperation between the voice terminal based on the IP packet and the application level of the existing telephone.

Further, in the prior art, since the switch is a MAC level switch, a broadcast packet at the MAC level must be controlled, and the switch has a high traffic processing. However, in the present invention, the IP
Since switches are used, only necessary traffic is controlled.

[0017]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration of an integrated voice / data routing apparatus according to one embodiment of the present invention. In FIG. 1, the integrated voice / data routing device 1 includes an IP switch circuit 11, IP line circuits 12 to 14, a non-packet processing unit 15, a search table 16, a control unit 17, and a gateway circuit 18. ing. The integrated voice / data routing device 1 is based on the premise that the packet layer configuration is based on the IEEE.
The E802 standard is used.

Although the IP line circuits 12 to 14 are completely the same in function, they are distinguished from each other because the connected devices and networks are different. The IP line circuit 12 accommodates a terminal, the IP line circuit 13 is connected to a wide area network, and the IP line circuit 14 is connected to a backbone device such as a router.

The IP switch circuit 11 outputs the I
The switch circuit exchanges based on the P address information. The switch circuit reads IP address information of an IP packet from each of the IP line circuits 12 to 14 connected to the IP switch circuit 11 to determine a transfer destination.

The search table 16 stores the IP switch circuit 11
And destination information of IP packets input from each of the IP line circuits 12 to 14 and the like. The destination information of the IP packet can be rewritten by the control unit 17. The IP switch circuit 11 reads destination information and the like of the search table circuit 16 using an IP packet from the IP line circuit 12 or the like as a trigger.

The gateway circuit 18 is a circuit that connects the IP switch circuit 11 and the non-packet processing unit 15, and has a function of converting an IP packet into audio data of 64 Kpbs in particular and a function of converting the audio data into an IP packet. Function.

The non-packet processing unit 15 has the function of a conventional existing switching unit, and has a time-division switching function based on 64 Kbps × n (n = natural number), a non-packet type voice terminal 3 and a non-packet It has an interface terminating function of the type relay line 4.

The control section 17 is a function section for controlling the integrated voice / data routing apparatus 1 in general. In particular, the basic exchange function of the non-packet processing section 15, the control function of the search table 16, and the IP line circuits 12 And 14 control functions.

The packet type voice terminal 2 has a function of converting voice into IP packets and a function of converting IP packets into voice. The packet type voice terminal 7 has the same function. The non-packet type voice terminal 3 indicates a conventional analog telephone or multifunctional telephone. The non-packet type trunk 4 is a conventional analog trunk or digital trunk. The packet type relay line 6 indicates a packetized data network. The external device 5 indicates a router or another switching device.

The IP packets are transmitted to the transmission paths 121, 131 and 141 in a state of being encapsulated. For example, an Ether NET frame or an ATM (Asyn
(Chronous Transfer Mode).

The operation of the integrated voice / data routing apparatus 1 according to one embodiment of the present invention will be described with reference to FIG. First, an exchange operation between the IP line circuit 12 and the IP line circuit 13 will be described. The exchange operation between the IP line circuits 13 and 14 is the same as the exchange operation between the IP line circuits 12 and 13.

The packet type voice terminal 2 is an IP line circuit 1
3, when connecting to the packet-type voice terminal 7 connected to the subordinate, the IP address of the packet-type voice terminal 2 is temporarily set to “10.10.10.
If the P address is “10.10.10.7”, the packet-type voice terminal 2 sets the destination address of the IP packet to “10.10.10.7” and sets the source address to “1.
0.10.10.2 ", and the voice packet data is converted into an IP packet and transmitted.

The IP packet transmitted by the packet type voice terminal 2 reaches the IP line circuit 12 via the transmission line 121. The IP line circuit 12 restores the IP packet transmitted from the packet type voice terminal 2 and sends the restored IP packet from the packet type voice terminal 2 to the IP switch circuit 11 via the transmission line 111.

The IP switch circuit 11 collates the IP address information “10.10.10.7” of the transmission destination of the IP packet from the packet type voice terminal 2 with the search table 16. At this time, the search table 16 previously stores the physical accommodation number of the IP line circuit 13 in which the packet type voice terminal 7 is accommodated, various header information of encapsulation information on the transmission line 131 connected to the IP line circuit 13, and the like. Have been.

As a result of this collation, the IP switch circuit 11
The destination of the IP packet from the packet type voice terminal 2 is I
Recognizing that it is the P line circuit 13, the IP packet from the packet type voice terminal 2 is transmitted to the IP line circuit 13 via the transmission line 115. IP switch circuit 1
1 transmits various header information and the like read from the search table 16 to the IP line circuit 13 via the transmission line 116.

The IP line circuit 13 assembles the IP packet from the packet type voice terminal 2 into an IP packet to the packet type voice terminal 7 based on various header information and the like, and
31.

Although the IP packet to the packet type voice terminal 7 differs depending on the physical specifications of the transmission path 131,
For a NET frame, a MAC address or the like is added, and for an ATM, an ATM header or the like is added. This operation is based on IEEE802.3 and I.E. 430.

Next, IP packet transfer in the opposite direction to the above case will be described. The IP packet transmitted by the packet type voice terminal 7 reaches the IP line circuit 13 via the transmission line 131. The IP line circuit 13 restores the IP packet transmitted from the packet type voice terminal 7,
The restored IP packet from the packet type voice terminal 7 is sent to the IP switch circuit 11 via the transmission line 115.

The IP switch circuit 11 searches the IP address information “10.10.10.2” of the destination of the IP packet transmitted from the packet type voice terminal 7 for the search table 1.
Match at 6. At this time, the search table 16 contains the IP line circuit 12 in which the packet type voice terminal 2 is stored in advance.
And various header information of encapsulation information connected to the IP line circuit 13 are stored.

As a result of the comparison, the IP switch circuit 11
The destination of the IP packet from the packet type voice terminal 7 is I
Recognizing that it is the P line circuit 12, it transmits an IP packet from the packet type voice terminal 7 to the IP line circuit 12 via the transmission line 111. IP switch circuit 1
1 transmits various header information and the like read from the search table 16 to the IP line circuit 12 via the transmission line 112.

The IP line circuit 12 assembles an IP packet from the packet type voice terminal 7 into an IP packet to the packet type voice terminal 2 based on various header information and the like, and
21.

Next, an exchange operation between the IP line circuit 12 and the non-packet processing unit 15 will be described. The exchange operation between the IP line circuit 13 and the non-packet processing unit 15 is based on I
This is the same as the exchange operation between the P line circuit 12 and the non-packet processing unit 15.

When the packet-type voice terminal 2 is connected to the non-packet-type voice terminal 3 connected under the non-packet processing unit 15, the IP address of the packet-type voice terminal 2 is temporarily set to "10.10.10.2." , Non-packet type voice terminal 3
, The packet-type voice terminal 2 sets the destination address of the IP packet to “10.10.10.3” and the source address to “10.10.10. 10.2 ", the voice packet data is converted into IP packets and transmitted.

The IP packet transmitted by the packet type voice terminal 2 reaches the IP line circuit 12 via the transmission line 121. The IP line circuit 12 restores the IP packet transmitted from the packet type voice terminal 2 and sends the restored IP packet from the packet type voice terminal 2 to the IP switch circuit 11 via the transmission line 111.

The IP switch circuit 11 searches the IP address information “10.10.10.30” of the destination of the IP packet transmitted from the packet type voice terminal 2 for the search table 1.
Match at 6. At this time, the search table 16 stores in advance the physical accommodation number of the gateway circuit 18 in which the non-packet type voice terminal 3 is accommodated and various kinds of disassembly information required by the non-packet processing unit 15 connected to the gateway circuit 18. ing.

As a result of the comparison, the IP switch circuit 11
It recognizes that the destination of the IP packet from the packet-type voice terminal 2 is the gateway circuit 18, and transmits the IP packet from the packet-type voice terminal 2 to the gateway circuit 18 via the transmission line 113. Further, the IP switch circuit 11 transmits various kinds of decomposition information read from the search table 16 to the gateway circuit 18 via the transmission line 114.

The gateway circuit 18 decomposes the IP packet from the packet-type voice terminal 2 into voice data to the non-packet-type voice terminal 3 based on various kinds of decomposition information and the like, and
Send to 53. The voice data to the non-packet type voice terminal 3 is sent to the non-packet type voice terminal 3 by the operation of the non-packet type voice terminal 15, but the switching operation of the non-packet type voice terminal 15 is the same as the operation of the existing PBX. And
And its operation is known.

Next, a description will be given of the audio data transfer in the opposite direction to the above case. The voice data transmitted by the non-packet type voice terminal 3 reaches the non-packet processing unit 15 via the transmission path 151. The non-packet processing unit 15 terminates the voice data transmitted from the non-packet voice terminal 3. At this time, the control unit 17 previously sets the non-packet type voice terminal 3
It is determined by the signaling control that the voice data from is transmitted to the packet type voice terminal 2 via the gateway circuit 18. For signaling control, for example, 93
1 or the like is used.

The gateway circuit 18 assembles voice data from the non-packet type voice terminal 3 received via the transmission line 153 into an IP packet to the packet type voice terminal 2 and transmits the IP packet to the packet type voice terminal 2. Road 11
3 to the IP switch circuit 11. At this time, the destination of the IP address of the IP packet to the packet type voice terminal 2 is “10.10.10.2”, and the source is “10.10.1” which is the address of the gateway circuit 18.
0.80 ”.

The IP switch circuit 11 compares the IP address information “10.10.10.2” of the destination of the IP packet to the packet type voice terminal 2 with the search table 16. At this time, the search table 16 stores in advance the physical accommodation number of the IP line circuit 12 in which the packet type voice terminal 2 is accommodated, various header information of the encapsulation information of the transmission line 121 connected to the IP line circuit 12, and the like. I have.

As a result of the comparison, the IP switch circuit 11
The destination of the IP packet to the packet type voice terminal 2 is IP
Recognizing that it is the line circuit 12, the IP packet to the packet type voice terminal 2 is transmitted to the IP line circuit 12 by the transmission line 1.
11 for transmission. Further, the IP switch circuit 11 transmits various header information and the like read from the search table 16 to the IP line circuit 12 via the transmission line 112. IP
The line circuit 12 assembles IP packets to the packet type voice terminal 2 based on various header information and the like, and transmits the IP packets to the transmission line 121.

FIG. 2 is a block diagram showing the configuration of the IP switch circuit 11 of FIG. In FIG. 2, an IP switch circuit 11 includes an IP line circuit 12 and a gateway circuit 18.
Circuits 11a to 11d for connecting to
, Switch circuit 11e, search interface circuit 1
1f. Interface circuit 11a
11d have the same function.

The interface circuit 11a is connected to the transmission line 111
If the IP packet is received from the
Address information and information above the IP layer (hereinafter, layer 3
The above header information is transmitted to the search interface circuit 11f via the transmission path 202.

The interface circuit 11b transmits header information of layer 3 or higher to the search interface circuit 11f via the transmission line 204. The interface circuit 11c transmits the header information of the layer 3 or higher to the search interface circuit 11c via the transmission 206. The interface circuit 11d transmits the header information of the layer 3 or higher to the search interface circuit 11f via the transmission line 208.

The search interface circuit 11f has a function of concentrating the header information of the layer 3 or higher from each of the interface circuits 11a to 11d and sending the collected information to the search table 16. The search table 16 is used as if it were a memory, and the search interface circuit 11f sends address information of the memory. As a result, the search table 16 sends destination information as the search result to the interface circuits 11a to 11d and various header information and various decomposition information.

Various header information and various decomposition information to the interface circuit 11a are transmitted via the transmission line 201. Various header information and various decomposition information to the interface circuit 11b are transmitted via the transmission path 203. Various header information and various decomposition information to the interface circuit 11c are transmitted via the transmission path 205. Various header information and various disassembly information to the interface circuit 11d are transmitted through the transmission path 2
07.

When the interface circuit 11a receives various types of header information and various types of decomposed information, the interface circuit 11a performs I / O based on the information.
The P packet is transmitted to the transmission path 211. When the interface circuit 11b receives various header information and various decomposition information, it transmits an IP packet to the transmission line 212 based on the information. When the interface circuit 11c receives various types of header information and various types of decomposed information, the
The packet is transmitted to the transmission path 213. When receiving various header information and various decomposition information, the interface circuit 11d transmits an IP packet to the transmission line 214 based on the information.

The switch circuit 11e performs routing based on the destination information in the various header information, and transmits it to each of the interface circuits 11a to 1d. Since the configuration of the switch circuit 11e is known, the description thereof is omitted.

FIG. 3 is a block diagram showing a configuration of the IP line circuit 12 of FIG. In FIG. 3, an IP line circuit 12 is a layer 2 termination circuit 12a for terminating layers 2 and below.
And an IP filtering circuit 1 for identifying an IP packet
2b, a CPU (Central Processing Unit) 12c that performs packet control of the layer 2 termination circuit 12a and the IP filtering circuit 12b, and an INF circuit 12d having an interface function with the control unit 17.

First, the operation of the IP line circuit 12 when various packets are received from the transmission line 121 will be described. The layer 2 termination circuit 12a has a function of terminating layers 2 and lower of various frames on the transmission path 121 and extracting an IP packet. The extracted IP packet is transmitted to the IP filtering circuit 12b via the transmission path 301. The IP filtering circuit 12 b
1 has a function of transmitting an IP packet to the IP switch circuit 11 via the IP switch 1.

Information of the layer 2 and lower layers terminated by the layer 2 termination circuit 12a is transmitted to the CPU 12c via the transmission line 302. In the CPU 12c, the information of layer 2 or lower
It is transmitted to the control unit 17 via the NF circuit 12d. Information of layer 2 and below is processed by the control unit 17, and there are information set in the search table 16 and information managed as maintenance information.

Next, an operation when an IP packet is received from the transmission line 111 will be described. When receiving an IP packet from the transmission line 111, the IP filtering circuit 12b recognizes whether the packet is an IP packet addressed to itself from information on the transmission line 112.

For example, the IP line circuit 12 has "20"
Is assigned. This identification information is included in various header information and various decomposition information. By transmitting the identification information to the transmission line 112 at the same time as the IP packet, the IP switch circuit 11 can recognize that the IP packet is destined for the IP line circuit 12.

When the identification information matches, the IP filtering circuit 12b takes in the IP packet and
01 to the layer 2 termination circuit 12a. The layer 2 termination circuit 12a has a function of obtaining various header information and various pieces of decomposition information of layer 2 and lower from the transmission line 112, and a function of assembling a packet to the transmission line 121. Since the configuration and operation of the IP line circuit 13 and the IP line circuit 14 are the same as the configuration and operation of the IP line circuit 12, the description thereof will be omitted.

FIG. 4 is a block diagram showing a configuration of the gateway circuit 18 of FIG. In FIG. 4, the gateway circuit 18 includes an assembling circuit 18a, a disassembling circuit 18b,
It comprises a circuit 18c, a CPU 18d, and an INF circuit 18e.

The CPU 18d has a control function for the IP circuit 18c, the assembling circuit 18a, and the disassembling circuit 18b. The INF circuit 18e has an interface function with the control unit 17.

First, the operation when audio data is received from the transmission line 153 will be described. The assembling circuit 18a has a function of terminating the audio data of the transmission line 153 and assembling an audio packet of several tens of bytes. The assembled voice packet is transmitted to the IP circuit 18c via the transmission path 401. The IP circuit 18c converts the voice data packet into I
It has a control function of assembling P packets, and the assembled IP packet is transmitted to the IP switch circuit 11 via the transmission line 113. The information of layer 3 or higher of the IP packet uses information set via the CPU 18d, and a database (not shown) is held in the control unit 17 side.

Next, the operation when an IP packet is received from the transmission line 113 will be described. When receiving an IP packet from the transmission line 113, the IP circuit 18 c recognizes whether or not the IP packet is addressed to itself from information on the transmission line 114.

For example, “8
It is assumed that identification information “0” is allocated. This identification information is included in various header information and various decomposition information. I
By transmitting the identification information to the transmission line 114 at the same time as the IP packet, the P switch circuit 11 can recognize that the IP packet is destined for the gateway circuit 18. When the identification information matches, the gateway circuit 18 fetches the IP packet, and
To the decomposition circuit 18b via The disassembling circuit 18 b has a function of obtaining various header information and various disassembly information on the non-packet processing unit 15 side from the transmission line 114,
And a function of transmitting voice data to the

FIG. 5 is a diagram showing a configuration example of the search table 16 of FIG. In FIG. 5, the search table 16 is composed of, for example, a high-speed memory circuit, and has a data area for address information. The address portion of the search table corresponds to information of layer 3 or higher such as an IP address from the search interface circuit 11f.

The data portion of the search table 16 includes output destination MAC address information, address information of layer 3 or higher, identification information indicating the IP line circuits 12 to 14,
Transmission line side header information indicating various header information of the transmission line;
The time slot information used in the gateway circuit 18 corresponds to this.

The data area of the search table 16 can be rewritten by the control unit 17. Therefore, when a new addition or deletion occurs, the control unit 17 immediately changes the information in the search table 16. For example, the case where the accommodation position has been changed in the IP line circuits 12 to 14 or the case where the terminal has moved correspond to this.

The control unit 17 has a function of terminating signaling of various terminals, a resource management function of the non-packet processing unit 15, a function of changing information in the search table 16, and a maintenance management function. A feature of the control unit 17 is that centralized management is performed.

As described above, by determining the identification information described in the upper layer of the IP packet and performing the switching process, it is possible to determine the voice packet and the transmission quality (priority control). , Call quality can be improved.

Further, by linking the packet processing with the non-packet processing unit, not only the connection with the non-packet processing unit but also the application level cooperation between the voice terminal based on the IP packet and the existing telephone can be performed. .

Further, since the conventional technology is a MAC level switch, a broadcast packet at the MAC level must be controlled, and the switch has a high traffic processing. , Only necessary traffic needs to be controlled.

[0072]

As described above, according to the present invention, a non-packetized voice terminal and a line terminating circuit for terminating a trunk line are accommodated as required, and a switching circuit for exchanging the non-packetized data is provided. In the exchange, a plurality of IP line circuits for terminating the IP packet of the packetized voice terminal and performing transmission / reception processing of the IP packet are connected to the IP switch circuit. Route to
The address and the identification information are searched using a search table circuit, and the assembling and disassembly of the IP packet are performed by a gateway circuit disposed between the IP switch circuit and the switching circuit, so that the non-packetized voice data and By performing interconnection with packetized voice data, voice packet determination and transmission quality determination (priority control) can be performed, and there is an effect that communication quality can be improved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an integrated voice / data routing apparatus according to an embodiment of the present invention.

FIG. 2 is a block diagram illustrating a configuration of an IP switch circuit of FIG. 1;

FIG. 3 is a block diagram illustrating a configuration of an IP line circuit of FIG. 1;

FIG. 4 is a block diagram illustrating a configuration of a gateway circuit of FIG. 1;

FIG. 5 is a diagram illustrating a configuration example of a search table in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Voice / data integrated routing apparatus 2, 7 Packet type voice terminal 3 Non-packet type voice terminal 4 Non-packet type relay line 5 External device 6 Packet type relay line 11 IP switch circuit 11a-11d Interface circuit 11e Switch circuit 11f Search interface circuit 12-14 IP line circuit 12a Layer 2 termination circuit 12b IP filtering circuit 12c, 18d CPU 12d, 18e INF circuit 15 Non-packet processing section 16 Search table 17 Control section 18 Gateway circuit 18a Assembly circuit 18b Decomposition circuit 18c IP circuit

Continued on the front page F-term (reference)

Claims (6)

[Claims] 1. A non-packetized voice terminal and a line terminating circuit for terminating a trunk line are accommodated as necessary, and integrated voice / data routing is performed in a switching device having a switching circuit for exchanging the non-packetized data. An integrated voice / data routing apparatus, comprising: a plurality of IP line circuits for terminating an IP (Internet Protocol) packet of a packetized voice terminal and performing transmission / reception processing of the IP packet; An IP switch circuit for performing a routing process based on an address and identification information of the IP packet, a search table circuit for searching for the address and identification information,
A switch circuit located between the switch circuit and the switching circuit;
An integrated voice / data routing apparatus, comprising a gateway circuit for assembling and disassembling P packets, and interconnecting the non-packetized voice data and the packetized voice data. 2. The voice / voice communication system according to claim 1, wherein information of said search table circuit is centrally controlled by a control unit for exchanging said non-packetized data.
Data integration routing device. 3. The integrated voice / data routing apparatus according to claim 1, wherein the IP switch circuit, the search table circuit, and the gateway circuit are mounted as needed. . 4. A non-packetized voice terminal and a line terminating circuit for terminating a trunk line are accommodated as necessary, and integrated voice / data routing is performed in a switching device having a switching circuit for exchanging the non-packetized data. An integrated voice / data routing method, comprising: connecting a plurality of IP line circuits for terminating an IP (Internet Protocol) packet of a packetized voice terminal and performing transmission / reception processing of the IP packet to an IP switch circuit;
The P-switch circuit performs a routing process based on the address and identification information of the IP packet, searches for the address and identification information using a search table circuit, and is disposed between the IP switch circuit and the switching circuit. Wherein the non-packetized voice data and the packetized voice data are interconnected by assembling and disassembling the IP packet in the gateway circuit. 5. The voice / voice communication system according to claim 4, wherein information of said search table circuit is centrally controlled by a control unit for exchanging said non-packetized data.
Data integration routing method. 6. The integrated voice / data routing method according to claim 4, wherein the IP switch circuit, the search table circuit, and the gateway circuit are mounted as needed. .