CN100366021C - System and method for optical transmission subnetwork communicating with external subnetwork using official telephone - Google Patents
System and method for optical transmission subnetwork communicating with external subnetwork using official telephone Download PDFInfo
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- CN100366021C CN100366021C CNB2004100853782A CN200410085378A CN100366021C CN 100366021 C CN100366021 C CN 100366021C CN B2004100853782 A CNB2004100853782 A CN B2004100853782A CN 200410085378 A CN200410085378 A CN 200410085378A CN 100366021 C CN100366021 C CN 100366021C
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Abstract
The present invention discloses a system and a method for communicating with an external subnet by using an official telephone of a light transmission subnet. The system comprises at least one light transmission subnet in which official calls can be performed, and at least one external subnet, wherein telephone openings of the light transmission subnet and the external subnet for going out of the subnet are respectively connected with routers provided with voice modules; the routers are connected with each other by methods of an Internet, a DCN, etc. The method establishes the communication and the connection of the official telephone by the routers provided with the voice modules, and the routers are connected with the light transmission subnet and the external subnet respectively. The scheme of the present invention not only can realize official intercommunication between incompatible light transmission subnets which are wide apart without optical fiber connection and use different equipment or protocols. Moreover, when the external subnet is a fixed telephone network or a mobile telephone network, the present invention can also use the official telephone for realizing the intercommunication between official telephones and civil telephones of the subnet. The present invention has the advantages of low cost of equipment, low consumption of resources, easy realization and wide range of application.
Description
Technical field
The present invention relates to communication technical field, specifically refer to the system and method that a kind of optical transmission subnet utilizes official telephone and foreign subnet to communicate.
Background technology
In Optical Transmission Network OTN, most equipment provides the official telephone function.Between each network element by the optical fiber connection of optical transmission subnet inside, public affair byte E1, E2 transmission telephone signaling and voice with the expense frame just can pass through the phone mutual communication, and this is official telephone; This kind communication mode not only provides convenience for the regular job and the maintenance of transmission network, and this mode do not need the input of extra circuit and equipment, so have characteristics such as cost is low, easy to use.
But if there is not optical fiber to connect between the different optical transmission subnet, public affair byte E1, the E2 of expense frame just can't transmit between each network element of different sub-network, causes the official call between any network element of any network element of certain subnet and another subnet to realize.
Fig. 1 is one of prior art scheme that addresses the above problem, and as shown in the figure, each optional network element M2, a N2 go out the subnet network element as subnet M, N respectively in optical transmission subnet M, N; In M2, N2, increase optical interface board or increase the light mouth, connect subnet M and subnet N by optical fiber then; So, public affair byte E1, the E2 of expense frame just can transmit between different sub-network M, N by optical fiber, have just realized official call between any network element of subnet M and any network element of subnet N.
By technique scheme, though can realize official call between subnet, connect owing to need to increase optical fiber, take the additional light mouth, so cause equipment cost to heighten; Especially there be professional the transmission when the light path that increases, and when being used to transmit public affair byte E1, E2 purely and realizing official call, especially to the significant wastage of resource; This scheme has also increased the complexity of structural design.In addition, this scheme is not to be applicable to all equipment, and when protocol processes was inconsistent between or subnet inequality or incompatible when the employed equipment of each subnet, then this scheme can't be implemented.
Chinese patent 02121570.7 discloses in a kind of synchronous digital transmission system the method for public affair intercommunication and device between subnet.Its inventive method is to increase by one to go out the subnet processing module on the Order Wire Card OW that goes out the subnet network element of each subnet, the Order Wire Card OW that goes out between the subnet network element interconnects by Serial Port Line and telephone wire, when realizing the public affair intercommunication between the network element of different sub-network, the signaling of official telephone and voice are respectively by Serial Port Line and telephone wire transmission.
Such scheme is with respect to the technical scheme that increases optical interface board and optical fiber, though reduced resource cost and equipment cost, but still there is following defective: because Serial Port Line and telephone wire transmission range are limited, therefore its enforcement is very limited, in other words, can only be when subnet M and subnet N respectively have a network element distance very near-as in same machine room, this scheme just can be implemented.In addition, it is the same that this scheme and this paper start mentioned technical scheme, solution only be the official call that how to realize better between the optical transmission subnet.
Summary of the invention
The system and method that provides a kind of optical transmission subnet to utilize official telephone to communicate by letter with foreign subnet is provided main purpose of the present invention; Not only can make what wide apart and non-fiber linked to each other, and used between the incompatible optical transmission subnet of distinct device or agreement and realized official call, and, when foreign subnet is the Local Network, also can utilize official telephone to realize the intercommunication of public affair and local call telephone.
For achieving the above object, adopt following technical scheme:
The system that a kind of optical transmission subnet utilizes official telephone to communicate by letter with foreign subnet comprises at least one optical transmission subnet, can carry out official telephone communication between inner each network element of this optical transmission subnet; At least one foreign subnet; The subnet phone port that goes out that goes out subnet phone port and described foreign subnet of described optical transmission subnet links to each other with router respectively, described router has signal testing function, voice signal codec functions and dialing signal sending function, and described router is by internet Internet or digital communications network DCN interconnection.
Voice module is housed on the router, and it has signal testing function, voice signal codec functions and dialing signal sending function.This voice module goes out the subnet phone port by what telephone wire was connected in optical transmission subnet or foreign subnet;
Wherein, above-mentioned foreign subnet perhaps is Local Network such as fixed telephone network or mobile telephone network for the inner network that can carry out official telephone communication.
A kind of optical transmission subnet utilizes official telephone and foreign subnet method for communicating, it is characterized in that: described optical transmission subnet is set up official telephone with described foreign subnet by the router that is connected separately and is communicated to connect, and described router has signal testing function, voice signal codec functions and dialing signal sending function.
Wherein, utilize official telephone communication between inner each network element of above-mentioned optical transmission subnet; Utilize official telephone or local telephone communication between inner each network element of foreign subnet;
The optical transmission subnet goes out the router that the subnet phone port is connected with it and utilizes the official telephone intercommunication; Foreign subnet goes out the router that the subnet phone port is connected with it and utilizes official telephone or local telephone network intercommunication; The mode intercommunication of wrapping by transmission IP between the router of each subnet;
Have on the router and have signal testing function, the voice module of voice signal codec functions and dialing signal sending function.；
The optical transmission subnet utilizes that official telephone and foreign subnet communicate by letter be connected and the specific implementation process of conversing as follows:
Step 1: the calling subscriber dials the telephone number that goes out the subnet phone port that its place subnet is connected with router;
Step 2: the voice module of described router is connected phone automatically, and sends the connection prompt tone, and the prompting calling subscriber imports the purpose telephone number;
Step 3: the calling subscriber is according to described prompt tone input purpose telephone number;
Step 4: the described purpose telephone number that described router voice module will receive is converted to the IP bag and is sent to the router that the purpose subnet is connected;
Step 5: after the router that described purpose subnet is connected receives described IP bag, explain the purpose telephone number and send dialing signal to the subnet phone port that goes out of purpose subnet;
Step 6: described purpose subnet goes out finishes normal telephone call after the subnet phone port receives described dialing signal;
Step 7: after setting up call, described two routers are set up that voice connect and will be converted to the IP bag from going out of the being connected speech signal coding that the subnet phone port transmits and are sent to end-to-end router, and end-to-end router is decoded the IP bag that receives and reverted to voice signal and be sent to the phone port that goes out subnet that is connected.
Owing to adopt router to carry out intercommunication between this programme optical transmission subnet and the foreign subnet, need not to increase optical fiber and connect, also needn't take the additional light mouth, and the router cost is lower than monitoring and controlling channels access board cost, so greatly reduce equipment cost and resource cost; Because communication can be by existing internet network or DCN network between the router, so the present invention program's enforcement institute is restricted few, applicable between remote subnet, and the communication between the incompatible subnet of equipment or agreement, so applied widely; In addition, only utilize the router that voice module is arranged just can realize the public affair intercommunication between subnet and the intercommunication of public affair and local call telephone, very convenient, be easy to realization.
Description of drawings
Fig. 1 is a networking schematic diagram of realizing official call in the prior art between two optical transmission subnets;
Fig. 2 is the embodiment schematic diagram of public affair intercommunication between the present invention's two optical transmission subnets;
Fig. 3 is the sequential chart that is connected of public affair between the present invention's two optical transmission subnets.
Embodiment
Fig. 2 is the embodiment schematic diagram of official telephone intercommunication between optical transmission subnet of the present invention.As shown in the figure, subnet A and subnet B are two of wide apart independently optical transmission subnets.Can carry out official call between each network element of A, B inside.An official telephone respectively is installed on each network element of A, B; In addition, among subnet A, the B, selected conduct goes out the network element of subnet network element also need install an official telephone again, is used for being connected with router.As shown in the figure, present embodiment selects network element A-2, B-1 to go out the subnet network element as subnet A, B respectively, router R1, a R2 respectively are installed in the machine room at A-2, B-1 place, voice module is installed on router, the voice module of router is connected to the official telephone mouth of A-2, B-1 with telephone wire.Need to prove that if existing router in the machine room, the network element that then can select to have connected router is made the subnet network element, there is not voice module as router, then only need on router, to install again voice module and get final product, and router needn't be installed separately in addition, to reduce equipment cost.This voice module has the bell signal detection function at least, speech signal coding decoding function and dialing signal sending function.The QuidwayR3680E-RTBM54FXO router that the company of Huawei Tech Co., Ltd that present embodiment is selected for use produces just can satisfy above-mentioned requirements.Router R1, R2 between subnet can connect by Internet, also can connect by modes such as DCN.
The official telephone mouth of each network element of subnet A all is assigned with a telephone number, and as shown in Figure 2, the telephone number that A-1, A-2, A-3 distribute is respectively 1001,1002,1003; In like manner, the telephone number that B-1, B-2, B-3 distribute among the subnet B is respectively 2001,2002,2003.In addition, going out subnet network element A-2, B-1 is respectively applied for the phone that the official telephone mouth that connects the router voice module distributes and is respectively 1008,2008.
Dialing official telephone with the arbitrary user among the subnet A to the network element B-2 of subnet B below in conjunction with Fig. 3 is example, and the detailed process of the official call between subnet is described:
Step 1: the subnet network element A-2 that goes out that the calling subscriber at first dials its place subnet goes up the telephone number 1008 that is connected with router R1;
Step 2: the voice module of router R1 is connected this phone automatically, and sends the connection prompt tone to the user, and the prompting user dials called purpose telephone number;
Step 3: the user is 2002 according to prompt tone input purpose telephone number in this example;
Step 4: after the voice module of router R1 receives user's dialing request, should ask to send to the router R2 of subnet B through being converted to the IP packet behind the coding;
Step 5: the voice module of router R2 explains user's dialing request from the IP packet that receives, be converted to the dialing pulse signal, sends on the official telephone mouth 2008 that goes out subnet network element B1 of the subnet B that it connects;
Step 6: described go out finish the telephone number 2002 that normal official telephone calling procedure is promptly called out B2 after subnet network element B1 receives dialing signal;
Step 7: behind the call setup, router R1, the R2 of subnet A, B sets up voice and connects, R1, R2 respectively will from connection subnet the voice signal that the subnet network element sends of going out to carry out code conversion be that the IP bag is sent to the other side, and will from the IP bag that the other side sends over decode revert to voice signal be sent to connect the official telephone mouth that the subnet network element of subnet.
By aforesaid operations, just can realize the public affair intercommunication between different optical transmission subnets.
Figure 2 shows that the present invention program realizes the application of public affair intercommunication between two optical transmission subnets.This embodiment is expanded, can realize the public affair intercommunication between more optical transmission subnets.As subnet A in this example and subnet B, also need to be connected with another subnet C, then can on subnet B and subnet C, respectively increase a router and connect, method of attachment is connected with described subnet A and subnet B's.User in the subnet A is when dialing the official telephone of subnet C, operating process is as follows: at first dial the telephone number that goes out the subnet network element of subnet A, after the connection, dial the telephone number that goes out the subnet network element of subnet B again, after the connection, dial the purpose telephone number of subnet C again.Certainly, if desired, subnet A, B, all right annular networking of C can be realized the public affair intercommunication between each subnet more easily.By that analogy, can also between more optical transmission subnet, realize the public affair intercommunication.
On basis embodiment illustrated in fig. 2, change the implementation method that Mingguang City's transmission subnet utilizes the Local Network of official telephone and foreign subnet to carry out the intercommunication of public affair and local telephone network below slightly.If the subnet B in should example changes Local Network (can be fixed telephone network or mobile telephone network) into, then only need to be connected to the voice module of router R2 on the phone port of Local Network B by telephone wire, can realize optical transmission subnet A and the public affair of outside local telephone network subnet B and the intercommunication of local call telephone, method of attachment and communication process do not repeat them here with the operation of the public affair intercommunication between two optical transmission subnets.The application like this of this programme can be conversed any network element of optical transmission subnet A with any phone of local network B, has realized the intercommunication of optical transmission device official telephone and landline telephone and mobile phone.That is to say,, can realize the conversation of farther distance easily by existing Access Network.The present invention has realized public affair intercommunication and public affair and local call telephone intercommunication between subnet, has easy and simple to handlely, is easy to realize and low cost and other advantages.
The above is not to be used to limit protection scope of the present invention.Any those skilled in the art, are equal to and replace and improvement etc. any modification of being done within the disclosed technical scope of the present invention, all should be included within protection scope of the present invention.
Claims (9)
1. the system that the optical transmission subnet utilizes official telephone to communicate by letter with foreign subnet comprises at least one optical transmission subnet, can carry out official telephone communication between inner each network element of this optical transmission subnet; At least one foreign subnet; It is characterized in that: the subnet phone port that goes out that goes out subnet phone port and described foreign subnet of described optical transmission subnet links to each other with router respectively, described router has signal testing function, voice signal codec functions and dialing signal sending function, and described router is by internet Internet or digital communications network DCN interconnection.
2. the system as claimed in claim 1, it is characterized in that: on the described router voice module is arranged, described voice module has signal testing function, voice signal codec functions and dialing signal sending function.
3. system as claimed in claim 2 is characterized in that: the voice module of described router goes out the subnet phone port by what telephone wire was connected in described optical transmission subnet or described foreign subnet.
4. the system as claimed in claim 1 is characterized in that: described foreign subnet is inner network or the Local Network that can carry out official telephone communication, and described Local Network is fixed telephone network or mobile telephone network.
5. an optical transmission subnet utilizes official telephone and foreign subnet method for communicating, it is characterized in that: described optical transmission subnet is set up official telephone with described foreign subnet by the router that is connected separately and is communicated to connect, and described router has signal testing function, voice signal codec functions and dialing signal sending function.
6. a kind of optical transmission subnet as claimed in claim 5 utilizes official telephone and foreign subnet method for communicating, it is characterized in that: utilize official telephone communication between inner each network element of described optical transmission subnet; Utilize official telephone or local telephone communication between inner each network element of described foreign subnet.
7. a kind of optical transmission subnet as claimed in claim 6 utilizes official telephone and foreign subnet method for communicating, it is characterized in that:
Described optical transmission subnet utilizes official telephone and its to go out the router intercommunication that the subnet phone port is connected;
Described foreign subnet utilizes official telephone or local telephone network to go out the router intercommunication that the subnet phone port is connected with it;
The mode intercommunication of wrapping by transmission IP between the described router.
8. a kind of optical transmission subnet as claimed in claim 7 utilizes official telephone and foreign subnet method for communicating, it is characterized in that: on the described router voice module is arranged, described voice module has signal testing function, voice signal codec functions and dialing signal sending function.
9. utilize official telephone and foreign subnet method for communicating as a kind of optical transmission subnet as described in the claim 8, it is characterized in that:
Step 1: the telephone number that goes out the subnet phone port that its place subnet of calling user dials is connected with router;
Step 2: the voice module of described router is connected phone automatically, and sends the connection prompt tone, and the prompting calling subscriber imports the purpose telephone number;
Step 3: the calling subscriber is according to described prompt tone input purpose telephone number;
Step 4: the described purpose telephone number that described router voice module will receive is converted to the IP bag and is sent to the router that the purpose subnet is connected;
Step 5: after the router that described purpose subnet is connected receives described IP bag, explain the purpose telephone number and go out subnet phone port Sending dialled number signal to the purpose subnet;
Step 6: described purpose subnet goes out finishes normal telephone call after the subnet phone port receives described dialing signal;
Step 7: after setting up call, described two routers are set up that voice connect and will be converted to the IP bag from going out of the being connected speech signal coding that the subnet phone port transmits and are sent to end-to-end router, and end-to-end router is decoded the IP bag that receives and reverted to voice signal and be sent to the phone port that goes out subnet that is connected.
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| CNB2004100853782A CN100366021C (en) | 2004-10-22 | 2004-10-22 | System and method for optical transmission subnetwork communicating with external subnetwork using official telephone |
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| CNB2004100853782A CN100366021C (en) | 2004-10-22 | 2004-10-22 | System and method for optical transmission subnetwork communicating with external subnetwork using official telephone |
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| CN100366021C true CN100366021C (en) | 2008-01-30 |
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| CN101389110B (en) * | 2008-08-07 | 2011-10-26 | 中兴通讯股份有限公司 | Apparatus and method for implementing official call by master control board |
| CN104158994B (en) * | 2014-08-26 | 2018-01-02 | 烽火通信科技股份有限公司 | Realize the circuit of span public affair |
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| CN1298237A (en) * | 1999-12-02 | 2001-06-06 | 深圳市中兴通讯股份有限公司 | Public affairs board for wavelength division multiplexing light transmission system |
| CN1409500A (en) * | 2001-09-20 | 2003-04-09 | 深圳市中兴通讯股份有限公司上海第二研究所 | Method and device for transferring multiple kinds of service information based on synchronous transmission system |
| CN1459987A (en) * | 2002-05-20 | 2003-12-03 | 华为技术有限公司 | Method of realizing base station maintenance in mobile communication system |
| CN1464692A (en) * | 2002-06-26 | 2003-12-31 | 华为技术有限公司 | Method and equipment for implementing service interchanging between subnet of synchronous digital transmission system |
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- 2004-10-22 CN CNB2004100853782A patent/CN100366021C/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1249578A (en) * | 1999-09-02 | 2000-04-05 | 深圳市中兴通讯股份有限公司 | Method for implementing service routing in synchronous optical transmission system |
| CN1298237A (en) * | 1999-12-02 | 2001-06-06 | 深圳市中兴通讯股份有限公司 | Public affairs board for wavelength division multiplexing light transmission system |
| CN1409500A (en) * | 2001-09-20 | 2003-04-09 | 深圳市中兴通讯股份有限公司上海第二研究所 | Method and device for transferring multiple kinds of service information based on synchronous transmission system |
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