CN101640866A - Method and system for checking initial call right supported by number portability service and relative device - Google Patents
Method and system for checking initial call right supported by number portability service and relative device Download PDFInfo
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- CN101640866A CN101640866A CN200910170260A CN200910170260A CN101640866A CN 101640866 A CN101640866 A CN 101640866A CN 200910170260 A CN200910170260 A CN 200910170260A CN 200910170260 A CN200910170260 A CN 200910170260A CN 101640866 A CN101640866 A CN 101640866A
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Abstract
The invention discloses a method and a system for checking initial call right supported by number portability service and a relative device. The method comprises the following steps: informing the network information and the call right of a call initiator to an object office during the process that the call initiator builds a call to the object office; judging by the object office after receivingthe number portability information of a called user according to the number portability information of the called user and the network information and the call right of the call initiator; and continuing the call to the called user when judging that the call initiator has right to call the called user. The invention solves the problem of mistook call brought in initial call right checking in a mode of non-initial call network inquiry number portability.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of method, system and relevant apparatus of checking initial call right supported by number portability service.
Background technology
Number portability service refers to not change Subscriber Number, and realizes the business from a network migration to another network.For example originally belong to the user of the A of operator, change the user of the B of operator into, but still keep original number.
Related specifications and standard that present number carries are not also described the content how initial call right is handled, and exhale the network inquiry number to carry under the mode in the non-beginning, and checking initial call right can bring following problem.
When the calling subscriber calls out the called subscriber, because the beginning exhales office can find calling subscriber's calling authority, but there is the home network information that accurately to grasp the called subscriber, if called number belongs to number section that number carries, and number portability queries is finished by the network of the former ownership of called subscriber, promptly not when the beginning, the office of exhaling was inquired about, beginning exhales office can't obtain called subscriber's home network information, although calling subscriber's authority information is arranged, but called user information accurately not, therefore the beginning exhales office can not determine the calling subscriber called subscriber that whether has the right to call out.If the beginning, calling was selected not refuse by the office of exhaling, the calling of having had no right to call out the foundation that just makes the mistake under called subscriber's the situation the calling subscriber; If the beginning, the refusal calling was selected by the office of exhaling, the calling of having had the right to call out the refusal that just makes the mistake under called subscriber's the situation the calling subscriber.Similarly, if use the former home network at called subscriber place or exhale exchange to check when whether caller has authority to call out the called subscriber eventually, also problem can take place, can't obtain calling subscriber's authority because exhale exchange eventually, under the situation of the authority information that does not have the calling subscriber, this calling meeting is continued, thereby may make the mistake.
For the problems referred to above, the related protocol that present number carries does not have the method that addresses this problem as yet.
Summary of the invention
In view of above-mentioned analysis, the present invention aims to provide a kind of method, system and relevant apparatus of checking initial call right supported by number portability service, exhale the network inquiry number to carry under the mode in order to what exist in the solution prior art in the non-beginning, because the described mistake of bringing of checking initial call right is exhaled problem.
Purpose of the present invention mainly is achieved through the following technical solutions:
The invention provides a kind of method of checking initial call right supported by number portability service, comprising:
Steps A: establish a call in the process of target office in call initiator, with the network information of described call initiator with call out authority and be notified to described target office;
Step B: described target office is after the number that obtains described called subscriber carries information, carry the network information of information, described call initiator and call out authority and judge according to the described called subscriber's who obtains number, when judging that described call initiator has authority to call out described called subscriber, continuing, this calls out described called subscriber.
Further, described step B specifically comprises:
Step B 1: after described target office received the network information of described call initiator and calls out authority, the number of inquiring about described called subscriber carried information;
Step B2: the network information of carrying information and described call initiator according to the described called subscriber's who obtains number judges whether described call initiator and described called subscriber belong to consolidated network, if, execution in step B3 then; Otherwise execution in step B4;
Step B3: judge according to the calling authority of described call initiator whether it has authority to call out described called subscriber, and this calling that when defining the authority of calling out described called subscriber, continues;
Step B4: judge according to the calling authority of described call initiator whether it has the cross-net call authority, and this calling that when defining the cross-net call authority, continues.
Further, described step B3 specifically comprises: described target office judges according to the calling authority of described call initiator whether it has authority to call out described called subscriber, if then continuing, this calls out described called subscriber; Otherwise return failed message or call release message and give described call initiator.
Further, described step B4 specifically comprises: described target office judges according to the calling authority of described call initiator whether it has the cross-net call authority, if then continuing, this calls out described called subscriber; Otherwise return failed message or call release message and give described call initiator.
Wherein, described call initiator comprises: calling subscriber, forwarding subscriber or changed course user.
Wherein, described target office comprises: be responsible for the exchange that enquiry number carries in the existing home network of the gateway exchange of the former home network of described called subscriber or described called subscriber.
The present invention also provides a kind of system of checking initial call right supported by number portability service, comprising: dispensing device and checking initial call right device, wherein,
Described dispensing device is used at call establishment, with the network information of call initiator with call out authority and be notified to described initial call right inquiry unit;
Described checking initial call right device, the number that is used to obtain the called subscriber carries information, and carry the network information of information, call initiator and call out authority and judge according to described called subscriber's number, when judging that described call initiator has authority to call out described called subscriber, continuing, this calls out described called subscriber.
Further, described checking initial call right device specifically comprises: call information collector unit, Call Control Unit, authority logic control element and number portability queries unit, wherein,
Described call information collector unit is used for triggering described number portability queries unit in the network information that receives described call initiator with after calling out authority; After the number that receives the called subscriber carries information, be used for number with the called subscriber and carry the network information of information, call initiator and call out authority and send to described authority logic control element; Also be used for the scope check result that described authority logic control element is sent is passed to described Call Control Unit;
Described number portability queries unit is used for carrying information to number portability database request inquiry called subscriber's number, and described called subscriber's the number information of carrying is returned to the call information collector unit;
Described authority logic control element, be used for carrying the network information of information, described call initiator and the calling authority of the described call initiator of calling scope check, and the scope check result is sent to described Call Control Unit according to the described called subscriber's who receives number;
Described Call Control Unit is used for judging according to the scope check result, if allow described call initiator to call out described called subscriber, this calling then continues; Otherwise refuse this calling, and to described call initiator place network loopback failure announcement message or call release message.
The present invention also provides a kind of exchange, comprises at least: call information collector unit, Call Control Unit, authority logic control element and number portability queries unit, wherein,
Described call information collector unit is used for after the calling authority of the network information that receives call initiator and call initiator, triggers the number portability queries unit; After the number that receives the called subscriber carries information, called subscriber's number is carried the network information of information, call initiator and the calling authority of call initiator sends to the authority logic control element; And behind the scope check result that the authority logic control element is sent, also the scope check result to be passed to Call Control Unit;
Described number portability queries unit is used for carrying information to number portability database request inquiry called subscriber's number, and described called subscriber's the number information of carrying is returned to the call information collector unit;
Described authority logic control element is used for carrying the network information of information, call initiator and the calling authority of this call initiator of calling scope check according to the called subscriber's who receives number, and the scope check result is sent to described Call Control Unit;
Described Call Control Unit is used for judging according to the scope check result, if allow call initiator to call out described called subscriber, this calling then continues; Otherwise refuse this calling, and to described call initiator place network loopback failure announcement message or call release message.
Wherein, described exchange is for being responsible for the exchange that enquiry number carries in the gateway exchange of the former home network of called subscriber or the called subscriber's home network.
Beneficial effect of the present invention is as follows:
The invention solves in the non-beginning and exhale the network inquiry number to carry under the mode, because the described mistake of bringing of checking initial call right is exhaled problem.
Other features and advantages of the present invention will be set forth in the following description, and becoming apparent from specification of part perhaps understood by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Fig. 1 is the schematic flow sheet of the method for the invention first embodiment;
Fig. 2 is the schematic flow sheet of the method for the invention second embodiment;
Fig. 3 is in the described method of the embodiment of the invention, and target office checks the schematic flow sheet of initial call right;
Fig. 4 is the structural representation of the described system of the embodiment of the invention;
Fig. 5 is the structural representation of the described exchange of the embodiment of the invention.
Embodiment
Specifically describe preferential embodiment of the present invention below in conjunction with accompanying drawing, wherein, accompanying drawing constitutes the application's part, and is used from explaination principle of the present invention with embodiments of the invention one.For clear and simplification purpose, when it may make theme of the present invention smudgy, with specifying in detail of known function and structure in the omission device described herein.
1 be elaborated at first in conjunction with the accompanying drawings to 3 pairs of described methods of the embodiment of the invention of accompanying drawing.
As shown in Figure 1, Fig. 1 is the schematic flow sheet of the method for the invention first embodiment, wherein calls out initiation user A and belongs to network A, and have the authority of calling party B; User B is the ported subscriber (be that the former home network of user B is a network B, existing home network is a network A, and number remains unchanged) that belongs to network A, and concrete call flow can comprise the steps:
Step 101: user A makes a call, calling party B;
Step 102: the exchange (abbreviating target office down as) that the beginning at user A place exhales office or Home Network gateway exchange to establish a call to be responsible for enquiry number and to carry; In the call establishment, the beginning at user A place exhales office or Home Network gateway exchange that the calling authority of the network information (for example user A place network of network ID) of user A and user A is carried among the IAM (initial address message) and sends to target office; If the beginning at user A place exhales office or Home Network gateway exchange to also having other intermediate offices between the target office, then need be by intermediate office transparent transmission IAM; Described target office includes but not limited to the gateway exchange of the former home network of called subscriber or the exchange that existing home network is responsible for number portability queries;
Step 103: the number of target office direction number portability database acquisition request user B carries information;
Step 104: the number that target office obtains user B carries information;
Step 105: target office is judged according to the initial call right of user A, the network information of user A and the number information of carrying of called subscriber B, when determine allowing user A and user B to set up to call out, normally replay call to party B-subscriber or other exchange so that finally continue the party B-subscriber.
As shown in Figure 2, Fig. 2 is the schematic flow sheet of the method for the invention second embodiment, wherein calls out initiation user A and belongs to network A, and do not have the authority of calling party B; User B is the ported subscriber that belongs to network A; Specifically can comprise the steps:
Step 201: user A makes a call, calling party B;
Step 202: the beginning at user A place exhales office or Home Network gateway exchange to set up (or intermediate office transparent transmission) and calls out the exchange (abbreviating target office down as) of being responsible for enquiry number and carrying; In the call establishment, the beginning at user A place exhales office or Home Network gateway exchange that the calling authority of the network information of user A and user A is carried at and sends to target office among the IAM;
Step 203: the number of target office direction number portability database acquisition request user B carries information;
Step 204: target office obtains the information of carrying of called subscriber B;
Step 205: target office is judged according to the initial call right of user A, the network information of user A and the number information of carrying of user B, when definite refusing user's A and user B foundation calling, send ACM (failure announcement message), so that user A is put lack of competence refusal sound, perhaps send REL (call release message), so that call release and the reason of notifying caller place office call out to discharge are to exhale the beginning to have no right, release cause includes but not limited to choose in the standby release cause of existing protocol;
Step 206: the beginning at user A place exhale office or Home Network gateway exchange receive that target office sends ACM the time, initiate to put the failure sound to user A; When receiving REL, to the user A release that makes a call, the calling dispose procedure here is with the ordinary call dispose procedure.
Need to prove, more than in the explanation for Fig. 1 and Fig. 2, call initiator includes but not limited to calling subscriber, forwarding subscriber or changed course user; Target office includes but not limited to the gateway exchange of the former home network of called subscriber or the exchange that existing home network is responsible for number inquiry; Except the initial call right of the network information that comprises user A and user A, can also comprise one or more in the parameter of calling number shown in the table 1 in the IAM, also comprise one or more in the parameter of transferred number shown in the table 2 during preceding the commentaries on classics.
Table 1
Table 2
As shown in Figure 3, Fig. 3 is in the described method of the embodiment of the invention, and target office checks the schematic flow sheet of initial call right, specifically can comprise the steps:
Step 301: target office receives (being the gateway exchange of the former home network of called subscriber or the exchange that existing home network the is responsible for number inquiry) network information of call initiator and calling authority of call initiator;
Step 302: the number to number portability database request inquiry called subscriber carries information;
Step 303: the network information of carrying information and call initiator according to called subscriber's number is judged judge whether call initiator place network and called subscriber's existing home network is same network, if then execution in step 304; If not, execution in step 305 then;
Step 304: judge according to the calling authority of call initiator whether this call initiator has authority to call out the called subscriber, if having, replay call then; Otherwise refusal is called out, and to call initiator place network loopback failure announcement message or call release message etc.; If the beginning at call initiator place exhales office or Home Network gateway exchange to also having other intermediate offices between the target office, then need be by intermediate office transparent transmission playback message or call release message etc.;
Step 305: judge according to the calling authority of call initiator whether this call initiator has the cross-net call authority, if having, replay call then; Otherwise refusal is called out, and to call initiator place network loopback failure announcement message or call release message etc.; If the beginning at call initiator place exhales office or Home Network gateway exchange to also having other intermediate offices between the target office, then need be by intermediate office transparent transmission playback message or call release message etc.
4 pairs of described systems of the embodiment of the invention are elaborated below in conjunction with accompanying drawing.
As shown in Figure 4, Fig. 4 is the structural representation of the described system of the embodiment of the invention, specifically can comprise: dispensing device and initial call right inquiry unit, wherein,
Dispensing device is arranged in the call initiator home network, mainly is responsible in call establishment, the calling authority of call initiator place network of network information and call initiator is carried at sends to the initial call right inquiry unit among the IAM;
The initial call right inquiry unit, the gateway exchange or the existing home network that are arranged at the former home network of called subscriber are responsible in the exchange of number inquiry, mainly be responsible for behind the IAM of the calling authority that receives the place network of network information that carries call initiator and call initiator, the number that obtains the called subscriber by number portability database carries information, number according to the called subscriber carries information then, the calling authority of call initiator place network of network information and call initiator judges whether this call initiator has authority to call out this called subscriber, if, then continuing, this calls out described called subscriber, otherwise refusal is called out, and to call initiator place network loopback failure announcement message or call release message etc.
This initial call right inquiry unit specifically can comprise: call information collector unit, number portability queries unit, authority logic control element and Call Control Unit, wherein,
The call information collector unit is responsible for collecting the network information of call initiator and the calling authority of call initiator, asks the number portability queries unit to carry information to number portability database inquiry called subscriber's number then; The call information collector unit is after the number that receives the called subscriber carries information, and the calling authority of the network information, call initiator of also called subscriber's number being carried information, call initiator sends to the authority logic control element as input; And the call information collector unit also will pass to Call Control Unit with the scope check result after receiving the scope check result that the authority logic control element is sent.
The number portability queries unit, the number that inquires the called subscriber to the number portability database request carries information, and called subscriber's the number information of carrying is returned to the call information collector unit.
The authority logic control element, carry the calling authority of the network information, call initiator of information, call initiator at the number that receives the called subscriber that the call information collector unit sends after, carry the network information of information and call initiator according to called subscriber's number and judge whether call initiator place network and called subscriber's existing home network is same network:
If call initiator place network and called subscriber's existing home network is same network, then judge according to the calling authority of call initiator whether this call initiator has authority to call out the called subscriber, and the scope check result is returned to the call information collector unit; If call initiator place network and called subscriber's existing home network does not belong to same network, then judge according to the calling authority of call initiator whether this call initiator has the cross-net call authority, and the scope check result is returned the call information collector unit.
Call Control Unit, after receiving the scope check result that the call information collector unit sends, the result judges according to scope check, and (for consolidated network, call initiator has the authority of calling out the called subscriber if allow call initiator to call out the called subscriber; For heterogeneous networks, call initiator has the cross-net call authority), replay call then; Otherwise refusal is called out, and to call initiator place network loopback failure announcement message or call release message etc.
5 pairs of described exchanges of the embodiment of the invention are elaborated in conjunction with the accompanying drawings at last.
As shown in Figure 5, Fig. 5 is the structural representation of the described exchange of the embodiment of the invention, comprises at least: call information collector unit, Call Control Unit, authority logic control element and number portability queries unit, wherein,
The call information collector unit is responsible for collecting the network information of call initiator and the calling authority of call initiator, asks the number portability queries unit to carry information to number portability database inquiry called subscriber's number then; The call information collector unit is after the number that receives the called subscriber carries information, and the calling authority of the network information, call initiator of also called subscriber's number being carried information, call initiator sends to the authority logic control element as input; And the call information collector unit also will pass to Call Control Unit with the scope check result after receiving the scope check result that the authority logic control element is sent.
The number portability queries unit, the number that inquires the called subscriber to the number portability database request carries information, and called subscriber's the number information of carrying is returned to the call information collector unit.
The authority logic control element, carry the calling authority of the network information, call initiator of information, call initiator at the number that receives the called subscriber that the call information collector unit sends after, carry the network information of information and call initiator according to called subscriber's number and judge whether call initiator place network and called subscriber's existing home network is same network:
If call initiator place network and called subscriber's existing home network is same network, then judge according to the calling authority of call initiator whether this call initiator has authority to call out the called subscriber, and the scope check result is returned to the call information collector unit; If call initiator place network and called subscriber's existing home network does not belong to same network, then judge according to the calling authority of call initiator whether this call initiator has the cross-net call authority, and the scope check result is returned the call information collector unit.
Call Control Unit, after receiving the scope check result that the call information collector unit sends, the result judges according to scope check, and (for consolidated network, call initiator has the authority of calling out the called subscriber if allow call initiator to call out the called subscriber; For heterogeneous networks, call initiator has the cross-net call authority), replay call then; Otherwise refusal is called out, and to call initiator place network loopback failure announcement message or call release message etc.
In sum, the embodiment of the invention provides method, system and the relevant apparatus of checking initial call right supported by number portability service, for the application of not exhaling innings enquiry number to carry in the beginning, a kind of scheme that realizes calling out scope check is provided, promptly give target office with initial call right, the sponsor network information band of call initiator by the beginning office's of exhaling active, carry the network information and the initial call right of information, call initiator by the inspection of target office according to called subscriber's number, judge whether this calling allows.The embodiment of the invention solved in the non-beginning exhales the network inquiry number to carry under the mode, because the described mistake of bringing of checking initial call right is exhaled problem.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claims.
Claims (10)
1, a kind of method of checking initial call right supported by number portability service is characterized in that, comprising:
Steps A: establish a call in the process of target office in call initiator, with the network information of described call initiator with call out authority and be notified to described target office;
Step B: described target office is after the number that obtains described called subscriber carries information, carry the network information of information, described call initiator and call out authority and judge according to the described called subscriber's who obtains number, when judging that described call initiator has authority to call out described called subscriber, continuing, this calls out described called subscriber.
2, method according to claim 1 is characterized in that, described step B specifically comprises:
Step B1: after described target office received the network information of described call initiator and calls out authority, the number of inquiring about described called subscriber carried information;
Step B2: the network information of carrying information and described call initiator according to the described called subscriber's who obtains number judges whether described call initiator and described called subscriber belong to consolidated network, if, execution in step B3 then; Otherwise execution in step B4;
Step B3: judge according to the calling authority of described call initiator whether it has authority to call out described called subscriber, and this calling that when defining the authority of calling out described called subscriber, continues;
Step B4: judge according to the calling authority of described call initiator whether it has the cross-net call authority, and this calling that when defining the cross-net call authority, continues.
3, method according to claim 2, it is characterized in that, described step B3 specifically comprises: described target office judges according to the calling authority of described call initiator whether it has authority to call out described called subscriber, if then continuing, this calls out described called subscriber; Otherwise return failed message or call release message and give described call initiator.
4, method according to claim 2 is characterized in that, described step B4 specifically comprises: described target office judges according to the calling authority of described call initiator whether it has the cross-net call authority, if then continuing, this calls out described called subscriber; Otherwise return failed message or call release message and give described call initiator.
5, according to any described method in the claim 1 to 4, be characterised in that described call initiator comprises: calling subscriber, forwarding subscriber or changed course user.
6, according to any described method in the claim 1 to 4, its feature exists, and described target office comprises: be responsible for the exchange that enquiry number carries in the existing home network of the gateway exchange of the former home network of described called subscriber or described called subscriber.
7, a kind of system of checking initial call right supported by number portability service is characterized in that, comprising: dispensing device and checking initial call right device, wherein,
Described dispensing device is used at call establishment, with the network information of call initiator with call out authority and be notified to described initial call right inquiry unit;
Described checking initial call right device, the number that is used to obtain the called subscriber carries information, and carry the network information of information, call initiator and call out authority and judge according to described called subscriber's number, when judging that described call initiator has authority to call out described called subscriber, continuing, this calls out described called subscriber.
8, system according to claim 7 is characterized in that, described checking initial call right device specifically comprises: call information collector unit, Call Control Unit, authority logic control element and number portability queries unit, wherein,
Described call information collector unit is used for triggering described number portability queries unit in the network information that receives described call initiator with after calling out authority; After the number that receives the called subscriber carries information, be used for number with the called subscriber and carry the network information of information, call initiator and call out authority and send to described authority logic control element; Also be used for the scope check result that described authority logic control element is sent is passed to described Call Control Unit;
Described number portability queries unit is used for carrying information to number portability database request inquiry called subscriber's number, and described called subscriber's the number information of carrying is returned to the call information collector unit;
Described authority logic control element, be used for carrying the network information of information, described call initiator and the calling authority of the described call initiator of calling scope check, and the scope check result is sent to described Call Control Unit according to the described called subscriber's who receives number;
Described Call Control Unit is used for judging according to the scope check result, if allow described call initiator to call out described called subscriber, this calling then continues; Call out otherwise refuse this, and to the home network loopback failure announcement message or the call release message of described call initiator.
9, a kind of exchange is characterized in that, comprises at least: call information collector unit, Call Control Unit, authority logic control element and number portability queries unit, wherein,
Described call information collector unit is used for after the calling authority of the network information that receives call initiator and call initiator, triggers the number portability queries unit; After the number that receives the called subscriber carries information, called subscriber's number is carried the network information of information, call initiator and the calling authority of call initiator sends to the authority logic control element; And behind the scope check result that the authority logic control element is sent, also the scope check result to be passed to Call Control Unit;
Described number portability queries unit is used for carrying information to number portability database request inquiry called subscriber's number, and described called subscriber's the number information of carrying is returned to the call information collector unit;
Described authority logic control element is used for carrying the network information of information, call initiator and the calling authority of this call initiator of calling scope check according to the called subscriber's who receives number, and the scope check result is sent to described Call Control Unit;
Described Call Control Unit is used for judging according to the scope check result, if allow call initiator to call out described called subscriber, this calling then continues; Call out otherwise refuse this, and to the home network loopback failure announcement message or the call release message of described call initiator.
10, exchange according to claim 9 is characterized in that, described exchange is for being responsible for the exchange that enquiry number carries in the gateway exchange of the former home network of called subscriber or the called subscriber's home network.
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| WO2015196650A1 (en) * | 2014-06-26 | 2015-12-30 | 中兴通讯股份有限公司 | Method, equipment, system and computer storage medium for implementing number portability playback |
| CN110312241A (en) * | 2019-07-02 | 2019-10-08 | 中国联合网络通信集团有限公司 | International gateway server, block chain network system and its communication means |
| CN111431866A (en) * | 2020-03-05 | 2020-07-17 | 深圳震有科技股份有限公司 | Service authority control method and system based on voice call |
| CN114258063A (en) * | 2020-09-25 | 2022-03-29 | 中国移动通信集团设计院有限公司 | Method and device for processing internetwork call, electronic equipment and storage medium |
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| WO2015196650A1 (en) * | 2014-06-26 | 2015-12-30 | 中兴通讯股份有限公司 | Method, equipment, system and computer storage medium for implementing number portability playback |
| US10341291B2 (en) | 2014-06-26 | 2019-07-02 | Zte Corporation | Method, equipment, system and computer storage medium for implementing number portability announcement |
| CN110312241A (en) * | 2019-07-02 | 2019-10-08 | 中国联合网络通信集团有限公司 | International gateway server, block chain network system and its communication means |
| CN111431866A (en) * | 2020-03-05 | 2020-07-17 | 深圳震有科技股份有限公司 | Service authority control method and system based on voice call |
| CN114258063A (en) * | 2020-09-25 | 2022-03-29 | 中国移动通信集团设计院有限公司 | Method and device for processing internetwork call, electronic equipment and storage medium |
| CN114258063B (en) * | 2020-09-25 | 2023-11-21 | 中国移动通信集团设计院有限公司 | Method and device for processing internet call, electronic equipment and storage medium |
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