CN102480439A - Gateway equipment, system and method for implementing butt joint of trunks - Google Patents
Gateway equipment, system and method for implementing butt joint of trunks Download PDFInfo
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- CN102480439A CN102480439A CN2010105675236A CN201010567523A CN102480439A CN 102480439 A CN102480439 A CN 102480439A CN 2010105675236 A CN2010105675236 A CN 2010105675236A CN 201010567523 A CN201010567523 A CN 201010567523A CN 102480439 A CN102480439 A CN 102480439A
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- H04L65/1033—Signalling gateways
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Abstract
The invention discloses gateway equipment, a system and a method for implementing butt joint of trunks. The system comprises soft switching equipment, the gateway equipment and butt joint equipment, wherein the soft switching equipment is used for realizing corresponding service through signaling interaction with the gateway equipment; the gateway equipment is used for allocating time slot resources to signaling of different standards, encoding interoffice signaling forwarded by the soft switching equipment into standard signaling according to managed butt joint equipment information, and transmitting the standard signaling to the corresponding butt joint equipment according to an appointed time slot; and the butt joint equipment is used for receiving the corresponding standard signaling from the gateway equipment in the appointed time slot according to the time slot resource allocation information of the butt joint equipment managed by the gateway equipment. By the gateway equipment, the system and the method, different time slot resources are allocated to any standard signaling of an E1/T1 trunk, and a networking requirement that one trunk supports various types of standard channel associated signaling is met; therefore, finite trunk resources of the E1/T1 are used effectively.
Description
Technical field
The present invention relates to public switch telephone network (PSTN; Public Switched Telephone Network) and next generation network (NGN; Next Generation Network) gateway device relates in particular to gateway device, the system and method for realizing trunk (TRUNK) butt joint.
Background technology
T1 is respectively physical connection interfaces different in the digital network with E1, and its link can adopt coaxial cable also can adopt optical fiber.Wherein T1 is a Unite States Standard, and bandwidth is 1.544Mbps; E1 is an European standard, and bandwidth is 2.048Mbps; That the special line of China generally adopts all is E1.
The voice digital signal that transmits among the E1/T1 adopts pulse code modulation (PCM, Pulse CodeModulation).For single channel PCM, the systematic sampling frequency is 8000HZ, and the time in sampling interval is 128 μ s; This time in sampling interval is divided into a plurality of time slots (TS, Time Slot), with the distribution of the time of carrying out.The sampling interval of E1 is divided into 32 time slots, and the sampling interval of T1 is divided into 24 time slots.
Support to adopt the channel associated signalling of multiple standards on the digital repeatered line of E1/T1, and every kind of signaling standard disunity all.Q.400-Q.490 defined the R2 signaling standard like the RITU-T standard.All there is signaling standard implementation voluntarily different countries and regions, such as China the No1 signaling standard are arranged, and there are the R2 signaling standard in Europe, Latin America and some developing countries like Brazil, Argentina etc.; And the equipment disunity of each country because of adopting also exists skimble-scamble standard.
Relay resource is unit management with the basic group at present, and just the E1/T1 Interface of a primary rate can only be supported a kind of channel associated signalling of standard.The situation that multiple branch is arranged for some international channel associated signallings; Then need take a plurality of E1 interfaces satisfies the demands; And these international channel associated signalling institute loaded service amounts are less; So just reduced the customer volume of wall scroll E1 interface, under the relay resource condition of limited, supported the multiple demand that makes full use of relay resource with the road sign standard thereby can't satisfy.
Summary of the invention
Technical problem to be solved by this invention provides a kind of gateway device, system and method for realizing the trunk butt joint, can utilize limited relay resource to support the trunk butt joint of multiple signaling standard.
In order to solve the problems of the technologies described above, the invention provides a kind of system that realizes the trunk butt joint, comprise Softswitch, gateway device and one or more the service of connection devices, wherein:
Softswitch is used for realizing corresponding business through carrying out Signalling exchange with gateway device;
Gateway device, the signaling that is used to various criterion disposes time interval resource; The interoffice signaling of Softswitch being transmitted according to the service of connection devices information of management is encoded into the standard signaling, and gives corresponding the service of connection devices by the slot transmission of appointment;
The service of connection devices is used for the time interval resource configuration information according to this equipment of gateway device management, receives the signaling of respective standard from gateway device at the time slot of appointment.
Further,
The service of connection devices also sends the signaling of respective standard to gateway device at the time slot of appointment;
The standard signaling decoding that gateway device also will receive from the service of connection devices at the time slot of appointment according to the service of connection devices information, and the business information that decodes sent to Softswitch.
Further,
The service of connection devices information of gateway device management comprise signaling standard that identification code, the service of connection devices of the service of connection devices is all and time slot corresponding numbering thereof and the relaying group serial number information that is assigned with in part or all of information;
The service of connection devices is through the identification code of this equipment of input on the administration interface of this device end; The time interval resource configuration information of this equipment of obtaining, comprise signaling standard that this equipment is all and time slot corresponding thereof numbering and the relaying group serial number information that is assigned with in part or all of information.
Further, gateway device comprises relay resource administration module, message control module and the signaling coding/decoding module that connects successively, wherein:
The relay resource administration module, the signaling that is used to various criterion disposes time interval resource, and through interpolation, change and deletion action management the service of connection devices information; Give the signaling coding/decoding module with the service of connection devices message transmission of management;
The signaling coding/decoding module is used for according to the time slot of the service of connection devices information by the time-gap number appointment, and the standard signaling of the service of connection devices that will receive through trunk decodes business information by corresponding signaling standard, and reports message control module; Or the business information that message control module passes down is encoded into corresponding standard signaling by corresponding signaling standard, and send to the service of connection devices through trunk;
Message control module is used for the business information that the signaling coding/decoding module reports is sent to Softswitch; Or the interoffice signaling that Softswitch is transmitted is pressed corresponding signaling standard analyze the business information in this signaling, and handle accordingly according to the business information of analyzing, simultaneously with passing to the signaling coding/decoding module under this business information.
Further,
If it is off-hook information that message control module is analyzed in the said interoffice signaling, then application takies relay resource preparation calling control and by corresponding signaling standard switch call state, waits the business information of next interoffice signaling to be analyzed.
To inscribe in order solving between above-mentioned technology, to the invention provides a kind of gateway device of realizing the trunk butt joint, comprise the relay resource administration module, message control module and the signaling coding/decoding module that connect successively, wherein:
The relay resource administration module is used to the signaling configuration time interval resource of various criterion, and manages the service of connection devices information; Give the signaling coding/decoding module with the said the service of connection devices message transmission of management;
The signaling coding/decoding module is used for the time slot according to the appointment of the service of connection devices information, will decode business information by corresponding signaling standard from the standard signaling that the service of connection devices receives, and report message control module;
Message control module is used for the business information that the signaling coding/decoding module reports is sent to Softswitch.
Further,
Message control module is also pressed corresponding signaling standard analysis business information wherein with the interoffice signaling that Softswitch is transmitted, and handles accordingly according to the business information of analyzing, simultaneously with passing to the signaling coding/decoding module under this business information;
The signaling coding/decoding module also is encoded into corresponding standard signaling with the business information that message control module passes down by corresponding signaling standard in the service of connection devices information, and sends to the service of connection devices according to the time slot of appointment in the service of connection devices information.
Further,
The service of connection devices information of relay resource administration module management comprise signaling standard that identification code, the service of connection devices of the service of connection devices is all and time slot corresponding numbering thereof and the relaying group serial number information that is assigned with in part or all of information; Through interpolation, change and deletion action management the service of connection devices information;
The signaling coding/decoding module according in the service of connection devices information by the time slot of said time-gap number appointment, the standard signaling of the service of connection devices that will receive through trunk decodes business information by corresponding signaling standard, and reports message control module; Or the business information that message control module passes down is encoded into corresponding standard signaling by corresponding signaling standard, and send to the service of connection devices through trunk;
If it is off-hook information that message control module is analyzed in the said interoffice signaling, then application takies relay resource preparation calling control and by corresponding signaling standard switch call state, waits the business information of next interoffice signaling to be analyzed.
In order to solve the problems of the technologies described above, the invention provides a kind of method that realizes the trunk butt joint, relate to gateway device and one or more the service of connection devices, this method comprises:
Gateway device is the signaling configuration time interval resource of the service of connection devices information various criterion, and management the service of connection devices information;
The service of connection devices sends the signaling of respective standard according to the time interval resource configuration information of this equipment of gateway device management to said gateway device at the time slot of appointment;
The standard signaling decoding that gateway device will receive from the service of connection devices at the time slot of appointment according to the service of connection devices information of management, and the business information that decodes sent to Softswitch.
Further, this method also comprises:
Gateway device will be encoded into the standard signaling from the interoffice signaling that Softswitch receives according to the service of connection devices information, and give corresponding the service of connection devices by the slot transmission of appointment;
The service of connection devices receives the signaling of respective standard according to the time interval resource configuration information of this equipment from gateway device at the time slot of appointment.
Further,
The service of connection devices information of gateway device management comprise signaling standard that identification code, the service of connection devices of said the service of connection devices is all and time slot corresponding numbering thereof and the relaying group serial number information that is assigned with in part or all of information;
The service of connection devices is through the identification code of this equipment of input on the administration interface of this device end; The time interval resource configuration information of this equipment of obtaining, comprise signaling standard that this equipment is all and time slot corresponding thereof numbering and the relaying group serial number information that is assigned with in part or all of information.
In order to solve the problems of the technologies described above, the invention provides a kind of method that realizes the trunk butt joint, relate to gateway device and one or more the service of connection devices, this method comprises:
Gateway device is the signaling configuration time interval resource of the service of connection devices information various criterion, and management the service of connection devices information;
The service of connection devices sends the signaling of respective standard according to the time interval resource configuration information of this equipment of gateway device management to gateway device at the time slot of appointment;
The standard signaling decoding that gateway device will receive from the service of connection devices at the time slot of appointment according to the service of connection devices information of management, and the business information that decodes sent to Softswitch.
Further, this method also comprises:
Gateway device will be encoded into the standard signaling from the interoffice signaling that Softswitch receives according to the service of connection devices information, and give corresponding the service of connection devices by the slot transmission of appointment;
The service of connection devices receives the signaling of respective standard according to the time interval resource configuration information of this equipment from gateway device at the time slot of appointment.
Further,
The service of connection devices information of gateway device management comprise signaling standard that identification code, the service of connection devices of the service of connection devices is all and time slot corresponding numbering thereof and the relaying group serial number information that is assigned with in part or all of information;
The service of connection devices is through the identification code of this equipment of input on the administration interface of this device end; The time interval resource configuration information of this equipment of obtaining, comprise signaling standard that this equipment is all and time slot corresponding thereof numbering and the relaying group serial number information that is assigned with in part or all of information.
Gateway device provided by the invention, system and method; For the configuration of the channel associated signalling of arbitrary standard on the E1/T1 trunk with manage different time interval resources; Satisfy a trunk and supported the networking requirement of multiple standards channel associated signalling, thereby fully, effectively utilized the limited relay resource of E1/T1 numeral.
Description of drawings
Fig. 1 is the gateway device embodiment of realization trunk butt joint of the present invention and the structural representation of system embodiment;
Fig. 2 is the flow chart of the method embodiment of realization trunk butt joint of the present invention.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment technical scheme of the present invention is at length set forth.The embodiment that below gives an example only is used for explanation and explains the present invention, and does not constitute the restriction to technical scheme of the present invention.
As shown in Figure 1, be the structure of the system embodiment of realization trunk butt joint provided by the invention, this system comprises gateway device, one or more the service of connection devices and Softswitch, wherein:
Softswitch is used for realizing corresponding business through carrying out Signalling exchange with gateway device;
Gateway device is used for according to different signaling standards configuration time interval resources, and the interoffice signaling of Softswitch being transmitted according to the service of connection devices information of management is encoded into the standard signaling, gives corresponding the service of connection devices by the slot transmission of appointment; Maybe will receive the corresponding standard signaling decoding from the service of connection devices, the business information that decodes will be sent to Softswitch through the time slot of configuration;
The service of connection devices information of gateway device management comprise signaling standard that identification code, this service of connection devices of the service of connection devices is all and time slot corresponding numbering thereof and the relaying group sequence number that is assigned with in part or all of information.
The service of connection devices is used for according to the management information of obtaining from gateway device signaling to gateway device transmission respective standard on the time slot of appointment, or receives the signaling of respective standard from gateway device;
The service of connection devices obtains gateway device and disposes the time interval resource configuration information to this equipment through the identification code of this equipment of input on the administration interface at terminal, comprise signaling standard that this equipment is all and time slot corresponding numbering thereof and the relaying group sequence number that is assigned with in part or all of information.
Can find out that from Fig. 1 gateway device further comprises relay resource administration module, message control module and the signaling coding/decoding module that connects successively, wherein:
The relay resource administration module, the signaling that is used to various criterion disposes time interval resource, and through interpolation, change and all the service of connection devices information of deletion action management; Give the signaling coding/decoding module with the service of connection devices message transmission of management;
The signaling coding/decoding module is used for the time slot according to the appointment of the service of connection devices information, and the signaling of the service of connection devices that will receive through trunk decodes business information by the signaling standard in the service of connection devices information, and reports message control module; Or the business information that message control module passes down is encoded into corresponding signaling by the signaling standard in the service of connection devices information, and send to the service of connection devices through trunk;
Message control module is used for the business information that the signaling coding/decoding module reports is sent to Softswitch; Or the interoffice signaling that Softswitch is transmitted is pressed corresponding signaling standard analyze the business information in this signaling, and handle accordingly according to the business information of analyzing, simultaneously with passing to the signaling coding/decoding module under this business information.
Message control module sends to Softswitch through the business information with decoding and begins the controlling call flow process.
If it is off-hook information that message control module is analyzed in the interoffice signaling; Then application takies relay resource preparation calling control and (comprises Idle state by corresponding signaling standard switch call state; Deng the number state; Call flow states such as conversation state), wait the business information (such as information such as off-hook response message or on-hook) of next interoffice signaling to be analyzed.
As shown in Figure 2, be the method embodiment flow process that gateway device provided by the present invention is realized the trunk butt joint, comprise the steps:
Step 210: according to different signaling standard configuration time interval resources, and management the service of connection devices information;
The service of connection devices information of management comprise signaling standard that identification code, this service of connection devices of the service of connection devices is all and time slot corresponding numbering thereof and the relaying group sequence number that is assigned with in part or all of information.
Step 220: the time slot by appointment receives the interoffice signaling that Softswitch is transmitted, and handles accordingly according to the business information of therefrom analyzing;
If it is off-hook information that gateway device is analyzed in the interoffice signaling; Then application takies relay resource preparation calling control and (comprises Idle state by corresponding signaling standard switch call state; Deng the number state; Call flow states such as conversation state), wait the business information (such as information such as off-hook response message or on-hook) of next interoffice signaling to be analyzed.
Step 230: the service of connection devices information according to management is encoded into the standard signaling with the business information of analyzing, and sends to corresponding the service of connection devices by the time slot of appointment through trunk;
According to corresponding signaling standard in the service of connection devices information business information of analyzing is encoded into the standard signaling.
Step 240: the time slot by appointment receives the service of connection devices corresponding standard signaling from trunk, and becomes business information according to the service of connection devices information decoding, sends to Softswitch.
The service of connection devices sends the signaling of respective standard according to the time interval resource configuration information of knowing to gateway device at the time slot of appointment; Gateway device is according to the standard signaling decoding of corresponding signaling standard to receiving in the service of connection devices information.
The service of connection devices knows that through the identification code of importing this equipment gateway device disposes the time interval resource configuration information to this equipment, comprise signaling standard that this equipment is all and time slot corresponding thereof numbering and the relaying group sequence number that is assigned with in part or all of information.
Gateway device begins the controlling call flow process through the business information that is decoded into is sent to Softswitch.
Step 240 is to become business information to send to Softswitch the standard signaling decoding that receives among the said method embodiment; Also can in step 220,230, receive interoffice signaling and carry out before information analysis and the coding, in fact signaling receives the priority requirement on signaling and the out-of-order with decoding under the coding.
The embodiment that to sum up gives an example can find out; The present invention is through disposing on the E1/T1 trunk and manage different time interval resources for the channel associated signalling of arbitrary standard; Solved the problem that limited relay resource is not enough to support multiple channel associated signalling standard, thereby fully, effectively utilized E1/T1 digital junction resource.
Claims (14)
1. a system that realizes the trunk butt joint comprises Softswitch, gateway device and one or more the service of connection devices, wherein:
Softswitch is used for realizing corresponding business through carrying out Signalling exchange with gateway device;
Gateway device, the signaling that is used to various criterion disposes time interval resource; The interoffice signaling of Softswitch being transmitted according to the service of connection devices information of management is encoded into the standard signaling, and gives corresponding the service of connection devices by the slot transmission of appointment;
The service of connection devices is used for the time interval resource configuration information according to this equipment of gateway device management, receives the signaling of respective standard from gateway device at the time slot of appointment.
2. according to the described system of claim 1, it is characterized in that,
Said the service of connection devices also sends the signaling of respective standard to said gateway device at the time slot of appointment;
The said standard signaling decoding that said gateway device also will receive from said the service of connection devices at the time slot of appointment according to said the service of connection devices information, and the business information that decodes sent to Softswitch.
3. according to claim 1 or 2 described systems, it is characterized in that,
The service of connection devices information of said gateway device management comprise signaling standard that the identification code of said the service of connection devices, said the service of connection devices are all and time slot corresponding numbering thereof and the relaying group serial number information that is assigned with in part or all of information;
Said the service of connection devices is through the identification code of this equipment of input on the administration interface of this device end; Obtain the time interval resource configuration information of said equipment, comprise signaling standard that this equipment is all and time slot corresponding thereof numbering and the relaying group serial number information that is assigned with in part or all of information.
4. according to the described system of claim 3, it is characterized in that said gateway device comprises relay resource administration module, message control module and the signaling coding/decoding module that connects successively, wherein:
The relay resource administration module, the signaling that is used to various criterion disposes time interval resource, and manages said the service of connection devices information through interpolation, change and deletion action; Give the signaling coding/decoding module with the said the service of connection devices message transmission of management;
The signaling coding/decoding module; Be used for according to the time slot of said the service of connection devices information by said time-gap number appointment; The standard signaling of the said the service of connection devices that will receive through trunk decodes business information by corresponding signaling standard, and reports message control module; Or the business information that message control module passes down is encoded into corresponding standard signaling by corresponding signaling standard, and send to the service of connection devices through trunk;
Message control module is used for the business information that the signaling coding/decoding module reports is sent to Softswitch; Or the interoffice signaling that Softswitch is transmitted is pressed corresponding signaling standard analyze the business information in this signaling, and handle accordingly according to the business information of analyzing, simultaneously with passing to the signaling coding/decoding module under this business information.
5. according to the described system of claim 4, it is characterized in that,
If it is off-hook information that said message control module is analyzed in the said interoffice signaling, then application takies relay resource preparation calling control and by corresponding signaling standard switch call state, waits the business information of next interoffice signaling to be analyzed.
6. a gateway device of realizing the trunk butt joint comprises the relay resource administration module, message control module and the signaling coding/decoding module that connect successively, wherein:
The relay resource administration module is used to the signaling configuration time interval resource of various criterion, and manages the service of connection devices information; Give the signaling coding/decoding module with the said the service of connection devices message transmission of management;
The signaling coding/decoding module is used for the time slot according to the appointment of said the service of connection devices information, will decode business information by corresponding signaling standard from the standard signaling that the service of connection devices receives, and report message control module;
Message control module is used for the business information that the signaling coding/decoding module reports is sent to Softswitch.
7. according to the described gateway device of claim 6, it is characterized in that,
Message control module is also pressed corresponding signaling standard analysis business information wherein with the interoffice signaling that Softswitch is transmitted, and handles accordingly according to the business information of analyzing, simultaneously with passing to the signaling coding/decoding module under this business information;
The signaling coding/decoding module also is encoded into corresponding standard signaling with the business information that message control module passes down by corresponding signaling standard in the said the service of connection devices information, and sends to the service of connection devices according to the time slot of appointment in the said the service of connection devices information.
8. according to the described gateway device of claim 7, it is characterized in that,
The service of connection devices information of said relay resource administration module management comprise signaling standard that the identification code of said the service of connection devices, said the service of connection devices are all and time slot corresponding numbering thereof and the relaying group serial number information that is assigned with in part or all of information; Manage said the service of connection devices information through interpolation, change and deletion action;
Said signaling coding/decoding module according in the said the service of connection devices information by the time slot of said time-gap number appointment; The standard signaling of the said the service of connection devices that will receive through trunk decodes business information by corresponding signaling standard, and reports message control module; Or the business information that message control module passes down is encoded into corresponding standard signaling by corresponding signaling standard, and send to the service of connection devices through trunk;
If it is off-hook information that said message control module is analyzed in the said interoffice signaling, then application takies relay resource preparation calling control and by corresponding signaling standard switch call state, waits the business information of next interoffice signaling to be analyzed.
9. a method that realizes the trunk butt joint relates to gateway device and one or more the service of connection devices, and this method comprises:
Said gateway device is the signaling configuration time interval resource of the service of connection devices various criterion; The service of connection devices information according to management will be encoded into the standard signaling from the interoffice signaling that Softswitch receives, and give corresponding the service of connection devices by the slot transmission of appointment;
Said the service of connection devices receives the signaling of respective standard according to the time interval resource configuration information of this equipment of gateway device management from gateway device at the time slot of appointment.
10. according to the described method of claim 9, it is characterized in that, also comprise:
Said the service of connection devices sends the signaling of respective standard according to the time interval resource configuration information of said equipment to said gateway device at the time slot of appointment;
The said standard signaling decoding that said gateway device will receive from said the service of connection devices at the time slot of appointment according to said the service of connection devices information, and the business information that decodes sent to Softswitch.
11. according to claim 9 or 10 described methods, it is characterized in that,
The service of connection devices information of said gateway device management comprise signaling standard that the identification code of said the service of connection devices, said the service of connection devices are all and time slot corresponding numbering thereof and the relaying group serial number information that is assigned with in part or all of information;
Said the service of connection devices is through the identification code of this equipment of input on the administration interface of this device end; Obtain the time interval resource configuration information of said equipment, comprise signaling standard that this equipment is all and time slot corresponding thereof numbering and the relaying group serial number information that is assigned with in part or all of information.
12. a method that realizes the trunk butt joint relates to gateway device and one or more the service of connection devices, this method comprises:
Said gateway device is the signaling configuration time interval resource of the service of connection devices information various criterion, and management the service of connection devices information;
Said the service of connection devices sends the signaling of respective standard according to the time interval resource configuration information of this equipment of gateway device management to said gateway device at the time slot of appointment;
The said standard signaling decoding that said gateway device will receive from said the service of connection devices at the time slot of appointment according to the service of connection devices information of management, and the business information that decodes sent to Softswitch.
13. according to the described method of claim 11, it is characterized in that, also comprise:
Said gateway device will be encoded into the standard signaling from the interoffice signaling that Softswitch receives according to said the service of connection devices information, and give corresponding the service of connection devices by the slot transmission of appointment;
Said the service of connection devices receives the signaling of respective standard according to the time interval resource configuration information of said equipment from gateway device at the time slot of appointment.
14. according to claim 12 or 13 described methods, it is characterized in that,
The service of connection devices information of said gateway device management comprise signaling standard that the identification code of said the service of connection devices, said the service of connection devices are all and time slot corresponding numbering thereof and the relaying group serial number information that is assigned with in part or all of information;
Said the service of connection devices is through the identification code of this equipment of input on the administration interface of this device end; Obtain the time interval resource configuration information of said equipment, comprise signaling standard that this equipment is all and time slot corresponding thereof numbering and the relaying group serial number information that is assigned with in part or all of information.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010567523.6A CN102480439B (en) | 2010-11-30 | 2010-11-30 | Gateway equipment, system and method for implementing butt joint of trunks |
| PCT/CN2011/078821 WO2012071908A1 (en) | 2010-11-30 | 2011-08-24 | Gateway device, system and method for docking trunk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010567523.6A CN102480439B (en) | 2010-11-30 | 2010-11-30 | Gateway equipment, system and method for implementing butt joint of trunks |
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| CN102480439A true CN102480439A (en) | 2012-05-30 |
| CN102480439B CN102480439B (en) | 2015-06-03 |
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| CN201010567523.6A Expired - Fee Related CN102480439B (en) | 2010-11-30 | 2010-11-30 | Gateway equipment, system and method for implementing butt joint of trunks |
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| WO (1) | WO2012071908A1 (en) |
Cited By (1)
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| CN108600565A (en) * | 2018-04-24 | 2018-09-28 | 深圳震有科技股份有限公司 | More PBX share network system, method and the interchanger of SS7 signalling points |
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Also Published As
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| CN102480439B (en) | 2015-06-03 |
| WO2012071908A1 (en) | 2012-06-07 |
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