CN1750520A - Composite network communication device and its control method - Google Patents
Composite network communication device and its control method Download PDFInfo
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- CN1750520A CN1750520A CNA2004100663769A CN200410066376A CN1750520A CN 1750520 A CN1750520 A CN 1750520A CN A2004100663769 A CNA2004100663769 A CN A2004100663769A CN 200410066376 A CN200410066376 A CN 200410066376A CN 1750520 A CN1750520 A CN 1750520A
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Abstract
This invention discloses composite network communication equipment and control method, which contains power supply, input/output device, control process assembly, IP grouping process assembly, VoIP process assembly, PBX exchange assembly, user line interface assembly, external exchange office interface assembly, IP network access assembly, and ethernet exchanger assembly. Said equipment can make call outgoing, incoming and data communication. Said invention integrates PBX, ethernet exchanger, TCP/IP route and VoIP phonetic gateway function in one complex network communication equipment.
Description
Technical field
The present invention relates to data and speech communication technology, more particularly, relate to the composite network communication device of a kind of integrated multiple assembly and function and control the method that this communication apparatus is realized communication.
Background technology
At present, two cover communication networks are all set up, had to many medium-sized and small enterprises, and a cover is to use PBX to be connected to the telephone network of PSTN through trunk line, and another set of is the data communication network that utilizes the TCP/IP technology.Two cover networks are independently built, are moved, cost height, complex management.Along with the development of voip technology, some voip gateways towards medium-sized and small enterprises have appearred on the market, and its main purpose is that medium-sized and small enterprises are dialed toll telephone by Internet for convenience, saves long distance telephone fee.Because the function ratio of this class voip gateway is more single, enterprises still needs to build respectively, safeguard two cover communication networks, for example the patent No. is that the CN 1390021A described " gateway of internet protocol-based transferring voice and control method thereof " and the patent No. are CN 2400980Y described " family small branch exchange gateway ", and so a kind of network configuration just has been described.
The fundamental block diagram of this kind network configuration as shown in Figure 1.Inside in enterprise needs to safeguard two networks, i.e. data network 100 and speech network 102.Wherein, data network comprises several computers 110, and they all are connected to a switch 112, and switch 112 is connected to router one 30.Router one 30 links to each other with IP network 140.Speech network 102 comprises a plurality of telephone sets 120, and telephone set all is connected to a PBX 122, and PBX 122 is connected to voip gateway 124.Voip gateway 124 is connected to public switch telephone network 150, is also connected to router one 30 to realize the interconnected of two networks.
Though above-mentioned network also can be realized needed function, safeguard that simultaneously two networks rise the maintenance cost of enterprise, manage the more complicated that also seems simultaneously.
So, just needing a kind of network equipment and the corresponding means of communication that can above-mentioned network function is integrated, the complexity of the configuration of simplification network when being provided, complete function is arranged.
Summary of the invention
The purpose of this invention is to provide a kind of network equipment and corresponding means of communication, to simplify network configuration complicated in the prior art with integrated network function.
According to an aspect of the present invention, provide a kind of composite network communication device, comprise power supply, input/output unit, wherein also comprise following assembly: the control and treatment assembly, control and treatment call information and ip routing information, and have pci bus interface; IP packet transaction assembly is connected to described control and treatment assembly by pci bus, also has dedicated bus interface and MII bus interface; The VoIP processing components links to each other with described IP packet transaction assembly by dedicated bus, also has the TDM bus interface; Described VoIP processing components realizes the mutual conversion of PCM voice flow and IP grouping; PBX exchanges assembly, links to each other with described VoIP processing components and links to each other with described IP packet transaction assembly by dedicated bus by the TDM bus; Described PBX exchange assembly is realized the exchange of PCM voice flow; The subscriber line interface assembly links to each other with described VoIP processing components and described PBX assembly by the TDM bus, and the plain old telephone interface is provided; The FXO interface module links to each other with described VoIP processing components and described PBX assembly by the TDM bus, and several switching centers are provided; IP network inserts assembly, links to each other with described IP packet transaction assembly by the MII bus; The Ethernet switch assembly links to each other with described IP packet transaction assembly by the MII bus.
According to a further aspect in the invention, provide a kind of and use above-mentioned communication apparatus to carry out the method that phone is breathed out, comprise following step:
Initialization step comprises, each hardware cell in the described composite network communication device of initialization; Described control and treatment assembly is called out plan according to the information setting of configuration file; Described control and treatment arrangement of components static IP routing table; Described control and treatment assembly duplicates the IP route table that generates to IP packet transaction assembly;
If customer call is phone in another net, under the control of described control and treatment assembly, described PBX exchange assembly is set up circuit and is connected between two subscriber line interfaces, simultaneously link information is passed to described control and treatment assembly;
If customer call is local pstn telephone, according to the calling plan that in initialization step, is provided with, described control and treatment assembly is controlled described PBX exchange assembly and set up the connection of TDM circuit between a subscriber line interface and a FXO interface, simultaneously, described this link information of control and treatment component record and behind end of conversation the deletion this record;
If customer call is long-distance pstn telephone, preferentially sets up and call out connection by IP network; If IP network is congested or the DSP resource scarcity, then sets up and call out connection by the PSTN network.When using IP network to call out pstn telephone, described control and treatment assembly is at first set up logic channel with remote gateway, and then is connected by remote gateway and PSTN toll telephone foundation calling.Wherein, described control and treatment assembly is for this time allocation of communications DSP passage and udp port number and control described VoIP and use the udp port and the described remote gateway that distribute to set up logic channel; Control described PBX exchange assembly at called subscriber's line interface with for setting up the connection of TDM circuit between the DSP passage of this allocation of communications according to the calling plan by described control and treatment assembly more afterwards; In communication process, described PBX exchange assembly exchanges to described VoIP processing components with the exhalation voice flow, described VoIP processing components is converted to the RTP voice flow to exhalation voice flow compressed encoding, then, extract the IP address, udp port number of the IP address of remote gateway and this gateway and the RTP voice flow is encapsulated as UDP datagram, pass to described IP packet transaction assembly afterwards, described IP packet transaction assembly is provided with source IP address and purpose IP address for this packets of voice, described packets of voice is sent to make it to enter the PSTN net through remote gateway after searching routing table; Using the PSTN network to set up to call out when connecting, described controlled processing unit is controlled described PBX exchange assembly and is externally set up a circuit between switching center and the subscriber line interface and connect.
According to a third aspect of the invention we, provide a kind of method of using above-mentioned communication apparatus to carry out the phone incoming call, comprise following step:
Initialization step comprises, the described control and treatment assembly of each hardware cell in the described composite network communication device of initialization is called out plan according to the information setting of configuration file; Described control and treatment arrangement of components static IP routing table; Described control and treatment assembly duplicates the IP route table that generates to IP packet transaction assembly;
If the incoming call of local pstn telephone, according to described dial plan, described control and treatment assembly is controlled described PBX exchange assembly and set up the connection of TDM circuit between a FXO interface and a subscriber line interface;
If directly pass through the incoming call of the long-distance pstn telephone of PSTN network, described control and treatment assembly is controlled described PBX exchange assembly and set up the connection of TDM circuit between a FXO interface and a subscriber line interface;
If the incoming call of the long-distance pstn telephone of process IP network, described control and treatment assembly is at first set up logic channel with remote gateway, and then is connected by remote gateway and PSTN toll telephone foundation calling.Wherein, described control and treatment assembly is for this time allocation of communications DSP passage and udp port number and control described VoIP and use the udp port and the described remote gateway that distribute to set up logic channel; Control described PBX exchange assembly at called subscriber's line interface with for setting up the connection of TDM circuit between the DSP passage of this allocation of communications according to the calling plan by described control and treatment assembly more afterwards; In communication process, described PBX exchange assembly exchanges to described VoIP processing components with the exhalation voice flow, described VoIP processing components is converted to the RTP voice flow to exhalation voice flow compressed encoding, then, extract the IP address, udp port number of the IP address of remote gateway and this gateway and the RTP voice flow is encapsulated as UDP datagram, pass to described IP packet transaction assembly afterwards, described IP packet transaction assembly is provided with source IP address and purpose IP address for this packets of voice, described packets of voice is sent to make it to enter the PSTN net through remote gateway after searching routing table.
According to a forth aspect of the invention, provide a kind of method of using above-mentioned communication apparatus to carry out data communication, comprise following step:
Initialization step comprises, each hardware cell in the described composite network communication device of initialization; Described control and treatment arrangement of components static IP routing table; Described control and treatment assembly duplicates the IP route table that generates to IP packet transaction assembly; Described Ethernet switch assembly is learnt the MAC Address of All hosts on the local network and is set up the mac-port mapping table;
If the data communication between the main frame on the local network is directly carried out according to the mac-port mapping table by described Ethernet switch assembly;
If the main frame on the host access the Internet on the local network, after described Ethernet switch is analyzed this request, should ask packet forward to give described IP packet transaction assembly, the IP address information of described IP packet transaction component inspection request packet header, the destination of judging this grouping is not a local gateway, by routing table packet forward is gone out;
If the main frame on the host access local network on the Internet, the IP address information of described IP packet transaction component inspection packet header, and be forwarded to corresponding local host by described Ethernet switch assembly.
Adopted technical scheme of the present invention, PBX, Ethernet switch, TCP/IP route and VoIP voice gateway capability all are integrated on the same composite network communication device, the voice communications versus data communications of enterprises is merged on a network, when complete function is provided, simplified the structure of network.
Description of drawings
Feature of the present invention and advantage will be below become more obvious after in conjunction with the accompanying drawings and embodiments the description, wherein:
Fig. 1 is the structure chart that uses the enterprises communication network of voip gateway establishment in the prior art;
Fig. 2 is the logical construction schematic diagram of composite network communication device of the present invention;
Fig. 3 is the schematic diagram that passes through according to phone in the net in the phone call-out method of the present invention;
Fig. 4 is according to the schematic diagram of calling out local pstn telephone in the phone call-out method of the present invention;
Fig. 5 is according to the schematic diagram of calling out long-distance pstn telephone in the phone call-out method of the present invention through IP network.
Embodiment
Further describe the technical solution of the utility model below in conjunction with drawings and Examples.
The network equipment of the present invention is a kind of integrated composite network communication device of PBX, Ethernet switch, TCP/IP route and VoIP voice gateway capability, it comprises following 8 assemblies, the logical construction schematic diagram of the compound network equipment 200 of the present invention that reference is shown in Figure 2:
Control and treatment assembly 202 is used for control and treatment call information and ip routing information, and has pci bus interface.In this embodiment, are integrated industrial control computers as control and treatment assembly 202.This integrated industrial control computer provides pci bus interface.The operating system of moving on industrial control computer is the embedded Linux system of customization, moves soft switch software and TCP/IP routing protocol software it on, and soft switch software has been realized Session Initiation Protocol and agreement H.323.Control and treatment assembly 202 is control centres of whole system.Control and treatment assembly 202 can obtain call information and ip routing information by two kinds of approach, and the one, user's configuration, two are to use relevant protocol dynamic to obtain.
IP packet transaction assembly 204 is connected to control and treatment assembly 202 by pci bus, also has dedicated bus interface and MII bus interface.IP packet transaction assembly 204 provides 4 special purpose interfaces, comprises two dedicated bus interfaces, is used to connect VoIP processing module 206 and PBX Switching Module 208; And two MII bus structures, be used to connect IP network and insert assembly 214 and Ethernet switch assembly 216.Operating system on the IP packet transaction assembly 204 also is the built-in Linux of customization, and it and control and treatment assembly 202 constitute a distributed environment by pci bus.The major function of IP packet transaction assembly 204 is to transmit the voice packet and the IP bag of packetizing, and its 4 modules that are connected are controlled in 202 cooperations with the control and treatment assembly.
VoIP processing components 206 links to each other with IP packet transaction assembly 204 by dedicated bus, also has the TDM bus interface.VoIP processing components 206 realizes the mutual conversion of PCM voice flow and IP grouping.In this embodiment, the core of VoIP processing components 206 comprises a dsp processor.The function of VoIP processing components 206 be will come from the one hand PBX exchange assembly 208 the voice signal of pcm encoder by a predetermined compression algorithm compression after, be packaged into the IP grouping again and pass to IP packet transaction assembly 204; On the other hand, IP packet transaction assembly 204 being transmitted the packetizing voice packet that comes decompresses, is reduced to the PCM voice flow and passes to PBX exchange assembly 206.
PBX exchanges assembly 208, links to each other with VoIP processing components 206 and links to each other with IP packet transaction assembly 204 by dedicated bus by the TDM bus; PBX exchange assembly 208 is realized the exchange of PCM voice flow.In this embodiment, the core of PBX exchange assembly 208 is TDM switching matrixs, be connected with VoIP processing components 206, subscriber line interface (FXS) assembly 210, FXO (FXO) interface module 212 by the TDM bus, thus the exchange of realization PCM voice flow.
Subscriber line interface assembly 210 links to each other with VoIP processing components 206 and PBX assembly 208 by the TDM bus, and it provides one group of FXS interface to the user is the plain old telephone interface.
IP network inserts assembly 214, links to each other with IP packet transaction assembly 204 by the MII bus, provides a 10/100BASE-TX self adaptation Ethernet interface to the user.
Ethernet switch assembly 216 links to each other with IP packet transaction assembly 204 by the MII bus, provides one group of 10/100BASE-TX self adaptation Ethernet interface to the user.
Thus, composite network communication device of the present invention has following 4 class interfaces:
1 10/100BASE-TX self adaptation Ethernet interface is supported the PPPoE agreement, is used to connect ADSL Modem, is linked into Intemet.For convenient narration, be designated hereinafter simply as the WAN mouth.
N * 24 a 10/100BASE-TX interface, i.e. 10/100M self adaptation Ethernet interface, external PC or other Ethernet switches are used to set up the LAN of enterprise.For convenient narration, be designated hereinafter simply as the LAN mouth.
N * 16 a FXS telephony interface is used to connect the ordinary telephone set of enterprises.
2～8 FXO telephony interfaces are used to be connected to PSTN exchange.
Describe the operation principle of composite network communication device of the present invention below in detail.For sake of convenience, suppose to operator and obtained H.323 number 021-64395679 of PSTN general number a: 021-64395678 and for this composite network communication device application.At first the step that will carry out is an initialization step, and initialization step all is necessary for following each method that will describe.
The step of system initialization comprises:
Each hardware cell of initialization makes it to enter normal operating conditions, and wherein the Ethernet switch assembly is relatively independent unit, after it finishes initialization, can independently exchange the data between the Ethernet interface on it;
The control and treatment assembly is called out plan according to the information setting of configuration file:
Control and treatment arrangement of components static IP routing table.If desired, can start Routing Protocol.In running, system can generate dynamic routing table by Routing Protocol such as RIP, OSPF and outside router exchanging routing information.Calling out the plan partial content can be referring to table 1, and the partial content of IP route table can be referring to table 2.
Table 1
| Called number | Dialing rule |
| 8-xxxxxxxx | Call out PSTN (long-distance) phone by IP network |
| 9-xxxxxxxx | By PSTN calling network pstn telephone |
| 1-yyy | Call out intercommunication phone |
Table 2
| Destination | Netmask | Gateway | Metric | Use | Interface |
| 0.0.0.0 | 0.0.0.0 | 202.110.1.1 | 1 | 1 | Wan |
| 172.22.0.0 | 255.255.0.0 | 172.22.1.254 | 1 | 0 | lan |
| 202.110.1.2 | 255.255.255.255 | 127.0.0.1 | 1 | 0 | 127.0.0.1 |
The control and treatment assembly duplicates the routing table that generates to IP packet transaction assembly.In system's running, during routing table update, the control and treatment assembly also can duplicate the routing table after upgrading to IP packet transaction assembly.
After system finishes initialization, with regard to the generation of waiting voice call event and data communication incident.When producing voice or data communication incident,, carry out following processing respectively according to different situations:
1. carrying out phone breathes out.
When the user calls out by the ordinary telephone set that is connected in subscribers feeder (FXS) interface, the control and treatment assembly is analyzed call information after receiving the customer call incident, according to dial plan, decision PBX exchange assembly is set up switched circuit at which two TDM interchannel, and situation in following 3 is arranged.
1) if customer call be another intercommunication phone, under the control of control and treatment assembly, PBX exchange assembly is set up circuit and is connected between two FXS interfaces, simultaneously link information is passed to controlled processing unit.The circuit of two FXS interfaces connects as shown in phantom in Figure 3.This calling link information becomes the part of the call status information table that is based upon in the control and treatment assembly, and this table is safeguarded by the control and treatment assembly, and be also referred to as and call out the connection table, but its structure reference table 3.
Table 3
| Calling number | Called number | Type | Take the DSP channel | Caller IP | Caller UDP | Called IP | Called UDP |
| 1001 | 1024 | Plain old telephone | - | - | - | - | - |
| 1002 | 0，6442358 8 | Plain old telephone | - | - | - | - | - |
| 1003 | 0，010- 54320588 | VoIP | DS0 | 202.110.1.2 local | 2014 local | 218.80.20.79 remote | 3051 remote |
| 027- 68850432 | 021- 64395679， 1005 | VoIP | DS1 | 220.13.203. 4 remote | 3044 remote | 202.110.1.2 local | 2015 local |
| 021- 64320001 | 021- 64395678， 1006 | Plain old telephone | - | - | - | - | - |
2) if customer call be local pstn telephone, according to the plan of calling out, the control and treatment assembly will control PBX exchange assembly and set up the connection of TDM circuit between a FXS interface and a FXO (FXO) interface.Connect by this circuit, the user can converse with local pstn telephone, and its circuit connects as shown in phantom in Figure 4.Similarly, the control and treatment assembly also can write down this link information in the call status information table.After user's communication finishes, when promptly producing a call release events, the corresponding record in the control and treatment assembly deletion state table.
3) if customer call PSTN toll telephone, the control and treatment assembly is by such principle work: preferentially set up to call out by IP network and connect; If IP network is congested or the DSP resource scarcity, then sets up by the PSTN network automatically and call out connection.
Press priority principle, the control and treatment assembly by IP network, use the VoIP agreement as call remote gateway H.323, resources such as DSP passage for the use of this time allocation of communications, consult udp port number, voice communication capability with remote gateway, control VoIP uses the udp port and the remote gateway that distribute to set up logic channel.
After setting up logic channel, control and treatment assembly control PBX exchange assembly is at a FXS interface and distribute to and set up the TDM circuit between the DSP passage of this conversation and connect.Simultaneously, it records the information of this calling and calls out in the connection table, and this table is duplicated the unit to VoIP, and this call information comprises the IP address, udp port number of calling out relevant remote gateway with this.So far, intercommunication phone is set up to call out with the PSTN toll telephone and is connected, and the user can converse by intercommunication phone and toll telephone.
In communication process, PBX exchange assembly exchanges to the DSP passage with the exhalation voice flow.VoIP is converted to the RTP voice flow to exhalation voice flow compressed encoding, then, from call out to connect table, extract the IP address, udp port number of the IP address of remote gateway and this gateway etc., the RTP voice flow is encapsulated as UDP datagram, pass to IP packet transaction assembly again.IP packet transaction assembly at first is provided with source IP address and purpose IP address for this packets of voice, search routing table after, this packets of voice is sent by the WAN mouth.At last.Voice enter in the toll telephone through remote gateway and PSTN net.By IP network, the calling connection line between intercommunication phone and the PSTN toll telephone is shown in the dotted line among Fig. 5.
If the control and treatment assembly determines this trunk call to connect by PSTN, then its control PBX exchange assembly is set up a circuit connection between FXS and FXO interface, and the user just can communicate with the PSTN toll telephone afterwards.
2. carry out the phone incoming call.
1) if for the incoming call of local pstn telephone, according to dial plan, control and treatment assembly control PBX exchange assembly is set up the connection of TDM circuit between a FXO interface and a FXS interface, connect thereby set up to call out between local pstn telephone and intercommunication phone.By this connection, external call and intercommunication phone switched voice information, the connection line of its foundation is similar with Fig. 3.
2) directly pass through the incoming call of the long-distance pstn telephone of PSTN network.The incoming call of this situation and local pstn telephone is quite similar, and processing controls assembly control PBX exchange assembly is set up the connection of TDM circuit between a FXO interface and a FXS interface, connect thereby set up to call out between long-distance pstn telephone and intercommunication phone.By this connection, external call and intercommunication phone switched voice information.
3) through the long-distance pstn telephone incoming call of IP network, such telephone service belongs to voip phone.In this case, H.323 the control and treatment assembly uses agreement and remote gateway to set up logic channel, and then sets up to call out by remote gateway and PSTN toll telephone and be connected.When setting up logic channel with remote gateway, the control and treatment assembly is that resource such as this time allocation of communications DSP passage and remote gateway are consulted udp port number, voice communication capability, and control VoIP uses the udp port and the remote gateway that distribute to set up logic channel.These information will enter calls out in the connection table.Afterwards, administrative unit is dialled by this connection notice toll telephone user and is the number of the completely restricted extension on the composite network communication apparatus.Then, the toll telephone user dials and is extension, and this number passes to administrative unit by the connection of having set up.After obtaining extension, according to the plan of calling out, processing controls assembly control PBX exchanges assembly and connects at called FXS interface with for setting up the TDM circuit between the DSP passage of this allocation of communications.So far, the calling between toll telephone and the intercommunication phone connects have been set up, commutative voice between toll telephone and the intercommunication phone, and this voice transfer process and foregoing similar process by the IP network outbound calling repeat no more herein.
All kinds of soft phones of the same support of the present invention, promptly intercommunication phone can be called out H.323 terminal or SIP phone by composite network communication device, and outside soft phone also can be called out intercommunication phone.
3. data communication process
Compare with voice communication course, it is simple that data communication process is wanted.When data communication,, also to increase the step that an Ethernet switch assembly is learnt the MAC Address of All hosts on the local network and set up the mac-port mapping table for the initialization of system.Data communication comprises following 3 kinds of situations:
1) communication between the main frame on the local network only needs the data communication between the main frame on the local network, is directly carried out according to the mac-port mapping table by described Ethernet switch assembly.
2) host services on the host access Internet on the local network.When the main frame of local network main frame on Internet sends service request, after Ethernet switch is analyzed this request, should ask packet forward to give IP packet transaction assembly.The IP address information of IP packet transaction component inspection request packet header, the destination that can judge this grouping is not this gateway, will divide into groups to forward from the WAN mouth by routing table.
3) host services on the host access local network on the Internet.For enter the WAN mouth, the destination is the grouping of main frame on the local network, the IP address information of IP packet transaction component inspection packet header can be determined the destination of this grouping will divide into groups to forward from the LAN mouth by routing table.
In the method for the invention, the packet forward process is one of committed step in voip phone and the data communication process, and routing table is the critical data that repeating process IP packet forward unit uses.Among the present invention, the flow process of packet forward is as follows again:
Repeating process starts from an IP grouping and enters IP packet transaction assembly.Grouping has 4 kinds of approach to enter IP packet transaction assembly:
Grouping from the local network main frame exchanges to IP packet transaction assembly through the Ethernet machine;
From the grouping of wan interface, contain data and packets of voice;
Packets of voice from VoIP;
Grouping from the processing controls assembly.
IP packet transaction assembly is treated all alike and is entered its ground grouping, and it at first checks the IP address information of packet header, therefrom takes out destination address, searches the list item of this address correspondence in routing table, determines grouping next " jumping ".Whether the destination of at first judging this grouping is this gateway, if not this gateway, will divide into groups to send on LAN or the WAN from the interface of appointment by routing table.If the destination of grouping is this gateway, IP packet transaction assembly is further checked udp port number in the grouping whether in calling out the connection table, if, can determine that then this is grouped into packets of voice, it is passed to VoIP handle; Otherwise give the control and treatment assembly with grouping, this grouping may be the grouping that Routing Protocol is used for mutual routing iinformation, also may be the grouping of VoIP agreement user call transmission signaling, also may be the grouping that the user carries out configuration management.
For the grouping that enters IP packet transaction assembly from wan interface, IP packet transaction assembly carries out following processing.At first check the IP address information of packet header, judge according to routing table whether the destination of this grouping is this gateway,, then will divide into groups to forward from the LAN mouth if not this gateway.If the destination of grouping is this gateway, retransmission unit is further checked udp port number in the grouping whether in the connection table, if, can determine that then this is grouped into packets of voice, it is passed to VoIP handle; Otherwise give the control and treatment assembly with grouping.The packets of voice that enters system from the outside is reduced to the PCM voice flow after VoIP decompresses, exchange to the FXS interface through PBX again, enters in the subscriber phone.
Adopted technical scheme of the present invention, PBX, Ethernet switch, TCP/IP route and VoIP voice gateway capability all are integrated on the same composite network communication device, the voice communications versus data communications of enterprises is merged on a network, when complete function is provided, simplified the structure of network.
The foregoing description provides to being familiar with the person in the art and realizes or use of the present invention; those skilled in the art can be under the situation that does not break away from invention thought of the present invention; the foregoing description is made various modifications or variation; thereby protection scope of the present invention do not limit by the foregoing description, and should be the maximum magnitude that meets the inventive features that claims mention.
Claims (8)
1. a composite network communication device comprises power supply, input/output unit, it is characterized in that, also comprises following assembly:
The control and treatment assembly, control and treatment call information and ip routing information, and have pci bus interface;
IP packet transaction assembly is connected to described control and treatment assembly by pci bus, also has dedicated bus interface and MII bus interface;
The VoIP processing components links to each other with described IP packet transaction assembly by dedicated bus, also has the TDM bus interface; Described VoIP processing components realizes the mutual conversion of PCM voice flow and IP grouping;
PBX exchanges assembly, links to each other with described VoIP processing components and links to each other with described IP packet transaction assembly by dedicated bus by the TDM bus; Described PBX exchange assembly is realized the exchange of PCM voice flow;
The subscriber line interface assembly links to each other with described VoIP processing components and described PBX assembly by the TDM bus, and the plain old telephone interface is provided;
The FXO interface module links to each other with described VoIP processing components and described PBX assembly by the TDM bus, and several switching centers are provided;
IP network inserts assembly, links to each other with described IP packet transaction assembly by the MII bus;
The Ethernet switch assembly links to each other with described IP packet transaction assembly by the MII bus.
2. composite network communication device as claimed in claim 1 is characterized in that, described control and treatment assembly is an industrial control computer.
3. composite network communication device as claimed in claim 1 is characterized in that, described VoIP processing components comprises one or more dsp processors.
4. composite network communication device as claimed in claim 3 is characterized in that, described VoIP will become the IP grouping from the pcm encoder Speech Signal Compression of described PBX exchange assembly and be transferred to described IP packet transaction assembly; Also will be reduced to the pcm encoder voice flow from the grouping of described IP packet transaction assembly and be transferred to described PBX exchange assembly.
5. composite network communication device as claimed in claim 1 is characterized in that, described PBX exchange assembly comprises a TDM switching matrix.
6. use communication apparatus as claimed in claim 1 to carry out the method that phone is breathed out, it is characterized in that, comprise following step:
Initialization step comprises,
Each hardware cell in the described composite network communication device of initialization;
Described control and treatment assembly is called out plan according to the information setting of configuration file;
Described control and treatment arrangement of components static IP routing table;
Described control and treatment assembly duplicates the IP route table that generates to IP packet transaction assembly;
If customer call is phone in another net, under the control of described control and treatment assembly, described PBX exchange assembly is set up circuit and is connected between two subscriber line interfaces, simultaneously link information is passed to described control and treatment assembly;
If customer call is local pstn telephone, according to the calling plan that in initialization step, is provided with, described control and treatment assembly is controlled described PBX exchange assembly and set up the connection of TDM circuit between a subscriber line interface and a FXO interface, simultaneously, described this link information of control and treatment component record and behind end of conversation the deletion this record;
If customer call is long-distance pstn telephone, preferentially sets up and call out connection by IP network; If IP network is congested or the DSP resource scarcity, sets up by the PSTN network again and call out connection; When using IP network to call out pstn telephone, described control and treatment assembly is at first set up logic channel with remote gateway, and then is connected by remote gateway and PSTN toll telephone foundation calling.Wherein, described control and treatment assembly is for this time allocation of communications DSP passage and udp port number and control described VoIP and use the udp port and the described remote gateway that distribute to set up logic channel; Control described PBX exchange assembly at called subscriber's line interface with for setting up the connection of TDM circuit between the DSP passage of this allocation of communications according to the calling plan by described control and treatment assembly more afterwards; In communication process, described PBX exchange assembly exchanges to described VoIP processing components with the exhalation voice flow, described VoIP processing components is converted to the RTP voice flow to exhalation voice flow compressed encoding, then, extract the IP address, udp port number of the IP address of remote gateway and this gateway and the RTP voice flow is encapsulated as UDP datagram, pass to described IP packet transaction assembly afterwards, described IP packet transaction assembly is provided with source IP address and purpose IP address for this packets of voice, described packets of voice is sent to make it to enter the PSTN net through remote gateway after searching routing table; Using the PSTN network to set up to call out when connecting, described controlled processing unit is controlled described PBX exchange assembly and is externally set up a circuit between switching center and the subscriber line interface and connect.
7. use communication apparatus as claimed in claim 1 to handle the method for phone incoming call, it is characterized in that, comprise following step:
Initialization step comprises,
Each hardware cell in the described composite network communication device of initialization;
Described control and treatment assembly is called out plan according to the information setting of configuration file;
Described control and treatment arrangement of components static IP routing table;
Described control and treatment assembly duplicates the IP route table that generates to IP packet transaction assembly;
If the incoming call of local pstn telephone, according to described dial plan, described control and treatment assembly is controlled described PBX exchange assembly and set up the connection of TDM circuit between a FXO interface and a subscriber line interface;
If directly pass through the incoming call of the long-distance pstn telephone of PSTN network, described control and treatment assembly is controlled described PBX exchange assembly and set up the connection of TDM circuit between a FXO interface and a subscriber line interface;
If the incoming call of the long-distance pstn telephone of process IP network, described control and treatment assembly is at first set up logic channel with remote gateway, and then is connected by remote gateway and PSTN toll telephone foundation calling.Wherein, described control and treatment assembly is for this time allocation of communications DSP passage and udp port number and control described VoIP and use the udp port and the described remote gateway that distribute to set up logic channel; Control described PBX exchange assembly at called subscriber's line interface with for setting up the connection of TDM circuit between the DSP passage of this allocation of communications according to the calling plan by described control and treatment assembly more afterwards; In communication process, described PBX exchange assembly exchanges to described VoIP processing components with the exhalation voice flow, described VoIP processing components is converted to the RTP voice flow to exhalation voice flow compressed encoding, then, extract the IP address, udp port number of the IP address of remote gateway and this gateway and the RTP voice flow is encapsulated as UDP datagram, pass to described IP packet transaction assembly afterwards, described IP packet transaction assembly is provided with source IP address and purpose IP address for this packets of voice, described packets of voice is sent to make it to enter the PSTN net through remote gateway after searching routing table.
8. use communication apparatus as claimed in claim 1 to carry out the method for data communication, it is characterized in that, comprise following step:
Initialization step comprises,
Each hardware cell in the described composite network communication device of initialization;
Described control and treatment arrangement of components static IP routing table;
Described control and treatment assembly duplicates the IP route table that generates to IP packet transaction assembly;
Described Ethernet switch assembly is learnt the MAC Address of All hosts on the local network and is set up the mac-port mapping table;
If the data communication between the main frame on the local network is directly carried out according to the mac-port mapping table by described Ethernet switch assembly;
If the main frame on the host access the Internet on the local network, after described Ethernet switch is analyzed this request, should ask packet forward to give described IP packet transaction assembly, the IP address information of described IP packet transaction component inspection request packet header, the destination of judging this grouping is not a local gateway, by routing table packet forward is gone out;
If the main frame on the host access local network on the Internet, the IP address information of described IP packet transaction component inspection packet header, and be forwarded to corresponding local host by described Ethernet switch assembly.
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| CNB2004100663769A CN100435534C (en) | 2004-09-15 | 2004-09-15 | Composite network communication device and its control method |
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| CNB2004100663769A CN100435534C (en) | 2004-09-15 | 2004-09-15 | Composite network communication device and its control method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102149029A (en) * | 2010-12-13 | 2011-08-10 | 北京华环电子股份有限公司 | Method and device for supporting PBX (Private Branch Exchange) in PCM (Pulse Code Modulation) multiplexing equipment and PCM multiplexing device supporting PBX |
| CN101621485B (en) * | 2009-08-07 | 2012-01-11 | 中兴通讯股份有限公司 | Device and method for compatibly realizing grouping transmission service and time division multiplexing (TDM) service |
| CN102984095A (en) * | 2012-12-14 | 2013-03-20 | 深圳市共进电子股份有限公司 | Message transmission system, exchange equipment and message transmission method |
| CN103581170A (en) * | 2013-08-29 | 2014-02-12 | 国家电网公司 | Middleware engine for intelligent integration in unified communication system |
| CN103609074A (en) * | 2011-06-17 | 2014-02-26 | 微软公司 | Application specific WEB request routing |
| CN104427290A (en) * | 2013-09-11 | 2015-03-18 | 航天信息股份有限公司 | Processing method and processing system for audio/video data |
| CN106059938A (en) * | 2011-04-13 | 2016-10-26 | 高通股份有限公司 | Technique for managing communications at a router |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999060813A2 (en) * | 1998-05-20 | 1999-11-25 | Nortel Networks Limited | Methods and apparatus for integrating voice and data systems |
| JP2001339428A (en) * | 2000-05-25 | 2001-12-07 | Nec Eng Ltd | Voice/data integrated routing device and voice/data integrated routing method to be used therefor |
| CN100438460C (en) * | 2002-10-01 | 2008-11-26 | 华为技术有限公司 | Comprehensive phonetic, data and video service system and equipment |
| CN1310491C (en) * | 2002-10-01 | 2007-04-11 | 华为技术有限公司 | Comprehensive data and phonetic communication system |
| CN2722512Y (en) * | 2004-08-11 | 2005-08-31 | 无锡三通科技有限公司 | Composite network telecommunicating apparatus |
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- 2004-09-15 CN CNB2004100663769A patent/CN100435534C/en not_active Expired - Fee Related
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| CN101621485B (en) * | 2009-08-07 | 2012-01-11 | 中兴通讯股份有限公司 | Device and method for compatibly realizing grouping transmission service and time division multiplexing (TDM) service |
| CN102149029A (en) * | 2010-12-13 | 2011-08-10 | 北京华环电子股份有限公司 | Method and device for supporting PBX (Private Branch Exchange) in PCM (Pulse Code Modulation) multiplexing equipment and PCM multiplexing device supporting PBX |
| CN106059938A (en) * | 2011-04-13 | 2016-10-26 | 高通股份有限公司 | Technique for managing communications at a router |
| CN103609074A (en) * | 2011-06-17 | 2014-02-26 | 微软公司 | Application specific WEB request routing |
| CN103609074B (en) * | 2011-06-17 | 2017-05-31 | 微软技术许可有限责任公司 | Ask to route using specific WEB |
| CN102984095A (en) * | 2012-12-14 | 2013-03-20 | 深圳市共进电子股份有限公司 | Message transmission system, exchange equipment and message transmission method |
| CN103581170A (en) * | 2013-08-29 | 2014-02-12 | 国家电网公司 | Middleware engine for intelligent integration in unified communication system |
| CN104427290A (en) * | 2013-09-11 | 2015-03-18 | 航天信息股份有限公司 | Processing method and processing system for audio/video data |
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