CN115412902B - User number portability judgment system - Google Patents
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- CN115412902B CN115412902B CN202211365113.2A CN202211365113A CN115412902B CN 115412902 B CN115412902 B CN 115412902B CN 202211365113 A CN202211365113 A CN 202211365113A CN 115412902 B CN115412902 B CN 115412902B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/26—Network addressing or numbering for mobility support
- H04W8/28—Number portability ; Network address portability
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/12—Messaging; Mailboxes; Announcements
- H04W4/14—Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
Abstract
The invention relates to the technical field of short message platforms, and discloses a judgment system for number portability of a user, which comprises: the data storage unit is used for storing the short message data; starting a judgment trigger engine for judging number portability of the user by a judgment unit according to a trigger strategy; the judging unit judges whether the user belongs to the number portability user or not based on the user data, and the judging unit comprises a data extracting unit, a model storage unit, a weighting attribute calculating unit, a general attribute calculating unit, a similarity calculating unit and a result generating unit; the invention judges whether the user of the short message sending failure object belongs to the number portability user or not by mining the historical data of the user, thereby reducing the short message shelving rate of the short message platform.
Description
Technical Field
The invention relates to the technical field of short message platforms, in particular to a system for judging number portability of a user.
Background
The short message platform can generally judge the reason of short message sending failure through a receipt code returned by a short message interface, but the number portability user cannot return the receipt code with identifiable reason, especially a period of time after the number portability transaction; for the short message which can not judge the reason of the failure of sending, the short message platform can not process the corresponding strategy and can only carry out shelving.
Disclosure of Invention
The invention provides a user number portability judging system, which solves the technical problem that a short message platform in the related technology cannot judge whether a short message sending failure object is a number portability user.
According to an aspect of the present invention, there is provided a system for determining number portability of a user, comprising:
the data storage unit is used for storing the short message data;
the judging unit comprises a data extracting unit, a model storage unit, a weighting attribute calculating unit, a general attribute calculating unit, a similarity calculating unit and a result generating unit, wherein the data extracting unit extracts short message data sent to a user to be judged from the data storage unit to obtain a data set of the user to be judged;
the model storage unit is used for storing a filtering model, and the filtering model comprises the following filtering nodes:
a first node: the total number of short messages sent to the same number in a second time before the short message sending time is more than 1; the second node: the information sent to the same number in the third time before the short message sending time is failure information; a third node: the short messages which are failed to be sent belong to the same source; a fourth node: the contents of the short messages which are failed to be sent and exceed the proportion of the first threshold value belong to the verification short messages; and a fifth node: the content of the short message is a verification short message; a sixth node: the content of the short message is not a verification short message; a seventh node: the short messages with the same source of the same short message content in the adjacent time are failed to be sent according to the proportion exceeding the first threshold value;
the weighting attribute calculation unit is used for inputting the data of the short messages of the historical user data set and the user data set to be judged into the filtering model, and the data of the short messages are input into the filtering model to be filtered: the short message item judged to be yes by the first node is input into the second node, if the judgment of the second node is yes, the short message item is continuously input into the third node, if the judgment of the third node is yes, the result of the transmission failure is output to the first end node, and if the judgment of the third node is not, the result of the transmission success is output to the second end node; if the second node judges that the data is not input into the fourth node, if the fourth node judges that the data is input into the fifth node, if the fifth node judges that the data is input into the fifth node, outputting a result of failed transmission to a third end node, and if the fifth node judges that the data is not input into the fourth end node, outputting a result of successful transmission to the fourth end node; if the fourth node judges that the data is not input into the sixth node, if the sixth node judges that the data is input into the sixth node, outputting a result of failed transmission to a fifth end node, and if the sixth node judges that the data is not input into the sixth end node, outputting a result of successful transmission to the sixth end node; inputting the short message item judged as no by the first node into the seventh node, outputting a result of failed transmission to the seventh end node if the seventh node is judged as yes, and outputting a result of successful transmission to the eighth end node if the seventh node is judged as not;
generating a weighting attribute of the historical user according to a result of inputting the short message data of the historical user data set into the filtering model, and generating a weighting attribute of the user to be judged according to a result of inputting the short message data of the user data set to be judged into the filtering model; the formula for calculating the weighted attributes of the user is as follows:
whereinWhere at denotes the weighted attribute of the user, r (t) i ) The input result of the ith ending node after the short message data representing the user data set is input into the filtering model is the number of failures, q (t) i ) The number of results input by the ith ending node after the short message data of the user data set is input into the filtering model is represented;
the general attribute calculating unit is used for calculating a first attribute, a second attribute and a third attribute of the user to be judged and the historical user, wherein the calculation formula of the first attribute of the user is as follows: z is a radical of 1 N; the calculation formula of the second attribute of the user is as follows: z is a radical of 2 /z 1 (ii) a The calculation formula of the third attribute of the user is as follows: z is a radical of 3 /N；
Wherein N represents the number of short messages sent in the short message data of the user data set; z is a radical of 1 The number of the short messages which are failed to be sent in the short message data of the user data set is represented; z is a radical of 2 The number of received short messages in the short message data of the user data set is represented; z is a radical of 3 The number of the short messages which are sent in the short message data of the user data set and belong to the verification short messages is represented;
the similarity calculation unit is used for calculating the similarity between the user to be judged and the historical user, and the calculation formula of the similarity between the user to be judged and the ith historical user is as follows:
wherein x k K-th attribute, y, representing the user to be judged k A kth attribute representing a historical user;
the four attributes of the user are respectively a first attribute, a second attribute, a third attribute and a weighted attribute;
and the result generating unit is used for screening M historical users with the maximum similarity to the user to be judged according to the similarity between the user to be judged and the historical users to generate a similar user set, and judging whether the user to be judged is the number portability user or not according to the proportion of the historical users belonging to the number portability in the similar user set.
Further, the data set of the user to be judged comprises data of a plurality of short messages; the short message data comprises the content of the short message, the receiving number of the short message, the source of the short message, the sending time of the short message and the sending state of the short message;
the data storage unit also stores a historical user data set, wherein the historical user data set is a set of short message data of a historical user, and the historical user data set comprises the short message data sent to the historical user.
Further, the number of the data of the short messages sent in the user data set to be judged is the same as that of the data of the short messages sent in the historical user data set; the quantity of the data of the sent short messages contained in each historical user data set is the same;
the historical user data set is composed of a certain amount of short message data extracted by the historical user according to the sequence of sending time;
the user data set to be judged and the historical user data set both contain a part of received short messages.
Furthermore, the system for judging number portability of the user further comprises a judgment trigger engine, wherein the judgment trigger engine starts a judgment unit according to a trigger strategy to judge the number portability of the user, and the user according with the trigger strategy is a user to be judged;
the trigger strategy is: the number of times of failure of sending the short message to the user within the set judgment time exceeds a first quantity threshold value.
And further, judging whether the number of the historical users belonging to number portability in the similar user set is greater than M/2, if so, marking the user to be judged as the number portability user, otherwise, marking the user to be judged as a non-number portability user.
Further, the data of a short message is stored in an entry manner, and the number of the data of the short message actually refers to the number of the entries of the data of the short message.
Further, whether the short message is a verification short message is judged according to the content of the short message and a check rule;
the inspection rule is that the content of the short message is judged to be a verification short message if one of the following two conditions is met, wherein the first condition is that the content of the short message comprises six continuous numeric characters;
the second condition is that the content of the short message contains the key words of 'verification' and/or 'code'.
Further, the system for judging number portability of a user further comprises a marking module, which marks the user to be judged as the number portability user based on the judgment result of the result generating unit.
Further, the system for judging number portability of a user further comprises a feedback module, which is used for sending the information of the user to be judged, marked as the number portability user, to the demand party of the short message service.
The invention has the beneficial effects that:
the invention judges whether the user of the short message sending failure object belongs to the number portability user or not by mining the historical data of the user, thereby reducing the short message shelving rate of the short message platform.
Drawings
Fig. 1 is a first schematic block diagram of a subscriber number portability determination system according to the present invention;
FIG. 2 is a block diagram of a determining unit according to the present invention;
FIG. 3 is a block diagram of a second exemplary embodiment of a system for determining number portability;
fig. 4 is a block diagram of a third embodiment of a system for determining number portability of a subscriber.
In the figure: a data storage unit 101, a judgment trigger engine 102, a judgment unit 103, a marking module 104, a feedback module 105, a data extraction unit 1031, a model storage unit 1032, a weighted attribute calculation unit 1033, a general attribute calculation unit 1034, a similarity calculation unit 1035, and a result generation unit 1036.
Detailed Description
The subject matter described herein will now be discussed with reference to example embodiments. It is to be understood that such embodiments are discussed merely to enable others skilled in the art to better understand and thereby implement the subject matter described herein, and that changes may be made in the function and arrangement of the elements discussed without departing from the scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as needed. In addition, features described with respect to some examples may also be combined in other examples.
Example one
As shown in fig. 1 and fig. 2, a system for determining number portability of a user includes:
a data storage unit 101, configured to store short message data, where the short message data includes content of a short message, a receiving number of the short message, a source of the short message, sending time of the short message, and a sending status of the short message;
the data storage unit 101 also stores a historical user data set, wherein the historical user data set is a set of short message data of a historical user, and the historical user data set comprises the short message data sent to the historical user;
a judgment trigger engine 102, which starts a judgment unit 103 according to a trigger policy to carry out number portability judgment on the user, wherein the user meeting the trigger policy is a user to be judged;
the trigger strategy is: the number of times of failure of sending the short message to the user within the set judgment time exceeds a first number threshold;
the triggering strategy sets the limitation of the number of times of short message sending failures, filters the interference which generally belongs to accidental factors under the condition that the number of times of sending failures is less for some users which do not need to carry out number portability judgment, and certainly, if the number portability is a user who carries numbers to carry out number portability, the number of times of short message sending failures to the user is gradually increased and the user is changed into a state which accords with the triggering strategy;
a judging unit 103, which includes a data extracting unit 1031, a model storage unit 1032, a weighted attribute calculating unit 1033, a general attribute calculating unit 1034, a similarity calculating unit 1035, and a result generating unit 1036, where the data extracting unit 1031 extracts short message data sent to a user to be judged from the data storage unit 101 to obtain a data set of the user to be judged;
the user data set to be judged comprises data of a plurality of short messages;
in one embodiment of the invention, the number of the sent short message data contained in the user data set to be judged and the historical user data set is the same; the quantity of the data of the sent short messages contained in each historical user data set is the same; the historical user data set is composed of a certain amount of short message data extracted by the historical user according to the sequence of sending time;
the user data set to be judged and the historical user data set both contain a part of received short messages, and the part of the received short messages are sent by the user. Correspondingly, the sent short message is a short message sent to the user.
The data of a short message is stored in the form of an entry, and the number of the data of the short message actually refers to the number of the entries of the data of the short message.
A model storage unit 1032 for storing a filtering model, the filtering model comprising the following filtering nodes:
a first node: the total number of the short messages sent to the same number in a second time before the short message sending time is larger than 1;
the second node: the information sent to the same number in the third time before the short message sending time is failure information;
a third node: the short messages which are failed to be sent belong to the same source;
a fourth node: the contents of the short messages which are failed to be sent and exceed the proportion of the first threshold value belong to the verification short messages;
and a fifth node: the content of the short message is a verification short message;
a sixth node: the content of the short message is not a verification short message;
a seventh node: the short messages with the same source of the same short message content in the adjacent time are failed to be sent according to the proportion exceeding the first threshold value;
in one embodiment of the present invention, the source of the sent short message is generally the party requiring the short message service.
In one embodiment of the invention, the short message is marked with a label of a verification short message or a label of a non-verification short message by the source of the short message, and whether the short message is the verification short message or not is judged according to the label of the short message.
In one embodiment of the invention, whether the short message is a verification short message is judged according to the content of the short message and a check rule;
the method comprises the steps of providing a check rule, wherein the check rule is that if one of the following two conditions is met, the content of the short message is judged to be a verification short message, and the condition is that the content of the short message contains six continuous numeric characters;
the second condition is that the content of the short message contains keywords of 'verification' and/or 'code';
a weighted attribute calculation unit 1033, configured to input the data of the short messages in the historical user data set and the user data set to be determined into a filtering model, where the data of the short messages is input into the filtering model to perform the following filtering process: the short message item judged to be yes by the first node is input into the second node, if the judgment of the second node is yes, the short message item is continuously input into the third node, if the judgment of the third node is yes, the result of the transmission failure is output to the first end node, and if the judgment of the third node is not, the result of the transmission success is output to the second end node;
if the second node judges that the data is not input into the fourth node, if the fourth node judges that the data is input into the fifth node, if the fifth node judges that the data is input into the fifth node, outputting a result of failed transmission to a third end node, and if the fifth node judges that the data is not input into the fourth end node, outputting a result of successful transmission to the fourth end node;
if the fourth node judges that the data is not input into the sixth node, if the sixth node judges that the data is input into the sixth node, outputting a result of failed transmission to a fifth end node, and if the sixth node judges that the data is not input into the sixth end node, outputting a result of successful transmission to the sixth end node;
inputting the short message item judged as no by the first node into the seventh node, outputting a result of failed transmission to the seventh end node if the seventh node is judged as yes, and outputting a result of successful transmission to the eighth end node if the seventh node is judged as not;
generating the weighting attribute of the historical user according to the result of the short message data input filtering model of the historical user data set, and calculating the weighting attribute of the historical user according to the following formula:
wherein atto denotes a weighted attribute of the historical user, e 1 (t i ) The input result of the ith ending node after the short message data representing the historical user data set is input into the filtering model is the number of failures, s 1 (t i ) The number of results input by the ith ending node after the short message data of the historical user data set is input into the filtering model is represented;
generating the weighted attribute of the user to be judged according to the result of inputting the short message data of the user data set to be judged into the filtering model, wherein the formula for calculating the weighted attribute of the user to be judged is as follows:
wherein attt represents a weighted attribute of the historical user, e 2 (t i ) The number s of failures of the input result of the ith end node after the short message data of the user data set to be judged is input into the filtering model is represented 2 (t i ) Representing the number of results input by the ith end node after the short message data of the user data set to be judged is input into the filtering model;
in an embodiment of the present invention, the number of the history users extracted during the number portability judgment may be limited, or the number of the history user data sets stored in the data storage unit 101 may be limited, and the required data processing speed is ensured by limiting the number of the history users extracted during the number portability judgment to limit the data overhead.
A general attribute calculating unit 1034, configured to calculate the first attribute, the second attribute and the third attribute of the user to be determined and the historical user, where the calculation formula of the first attribute of the user to be determined is as follows: x is a radical of a fluorine atom 1 /N；
x 1 The number of short messages which fail to be sent in the short message data of the user data set to be judged is represented;
n represents the number of short messages sent in the short message data of the user data set to be judged;
user to be judgedThe calculation formula of the second attribute of (1) is as follows: x is the number of 2 /x 1 ；
x 1 The number of short messages which fail to be sent in the short message data of the user data set to be judged is represented;
x 2 representing the number of received short messages in the short message data of the user data set to be judged;
the calculation formula of the third attribute of the user to be judged is as follows: x is the number of 3 /N；
X 3 The number of the short messages sent in the short message data of the user data set to be judged belonging to the verification short messages is represented;
n represents the number of short messages sent in the short message data of the user data set to be judged;
the calculation formula of the first attribute of the historical user is as follows: y is 1 /N；
y 1 The number of short messages which are failed to be sent in the short message data of the historical user data set is represented;
n represents the number of short messages sent in the short message data of the historical user data set;
the calculation formula of the second attribute of the historical user is as follows: y is 2 /y 1 ；
y 1 The number of short messages which are failed to be sent in the short message data of the historical user data set is represented;
y 2 the number of the received short messages in the short message data of the historical user data set is represented;
the calculation formula of the third attribute of the historical user is as follows: y is 3 /N；
y 3 The number of the short messages which are sent in the short message data of the historical user data set and belong to the verification short messages is represented;
n represents the number of short messages sent in the short message data of the historical user data set;
the calculation formulas of the first attribute, the second attribute and the third attribute comprise a normalization processing part, and the value ranges of the first attribute, the second attribute and the third attribute are all [0,1] as can be seen from the formulas;
a similarity calculation unit 1035, configured to calculate a similarity between the user to be determined and the historical user, where a calculation formula of the similarity between the user to be determined and the ith historical user is as follows:
wherein x k K-th attribute, y, representing the user to be judged k A kth attribute representing a historical user;
k =1, k =2, and k =3, x k Respectively representing a first attribute, a second attribute and a third attribute of a user to be judged, wherein when k =4, x k Representing the weighting attribute of the user to be judged;
a result generating unit 1036, which filters M history users with the greatest similarity to the user to be determined according to the similarity between the user to be determined and the history users to generate a similar user set, determines whether the number of history users belonging to number portability in the similar user set is greater than M/2, if so, determines that the user to be determined is marked as a number portability user, otherwise, determines that the user to be determined is marked as a non-number portability user;
as shown in fig. 3, the system for determining number portability of a user further includes a marking module 104, which marks the user to be determined as the number portability user based on the determination result of the result generating unit 1036.
If the short message platform only has a short message channel of an operator, a demand party of the short message service should be informed of the information of the number portability user, so that the demand party of the short message service can transfer the demand of sending the short message to other short message platforms.
If the short message platform has short message channels of a plurality of operators, the short message platform can directly try to switch the short message channels of other operators to send short messages to the user to be judged.
As shown in fig. 4, in an embodiment of the present invention, the above-mentioned system for determining number portability of a user further includes a feedback module 105, configured to send information of a user to be determined, which is marked as a number portability user, to a party needing short message service.
The embodiments of the present invention have been described with reference to the drawings, but the present invention is not limited to the above specific embodiments, and the above specific embodiments are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit of the present invention, and all such forms are within the protection of the present invention.
Claims (9)
1. A user number portability judgment system is characterized by comprising:
the data storage unit is used for storing the short message data;
the judging unit comprises a data extracting unit, a model storage unit, a weighting attribute calculating unit, a general attribute calculating unit, a similarity calculating unit and a result generating unit, wherein the data extracting unit extracts short message data sent to a user to be judged from the data storage unit to obtain a data set of the user to be judged;
a model storage unit, configured to store a filtering model, where the filtering model includes the following filtering nodes:
a first node: the total number of short messages sent to the same number in a second time before the short message sending time is more than 1; the second node: the information sent to the same number in the third time before the short message sending time is failure information; a third node: the short messages which are failed to be sent belong to the same source; a fourth node: the contents of the short messages which are failed to be sent and exceed the proportion of the first threshold value belong to the verification short messages; and a fifth node: the content of the short message is a verification short message; a sixth node: the content of the short message is not a verification short message; a seventh node: the short messages with the same source of the same short message content in the adjacent time are failed to be sent according to the proportion exceeding the first threshold value;
the weighting attribute calculation unit is used for inputting the data of the short messages of the historical user data set and the user data set to be judged into the filtering model, and the data of the short messages are input into the filtering model to be filtered: the short message item judged to be yes by the first node is input into the second node, if the judgment of the second node is yes, the short message item is continuously input into the third node, if the judgment of the third node is yes, the result of the transmission failure is output to the first end node, and if the judgment of the third node is not, the result of the transmission success is output to the second end node; if the second node judges that the data is not input into the fourth node, if the fourth node judges that the data is input into the fifth node, if the fifth node judges that the data is input into the fifth node, outputting a result of failed transmission to a third end node, and if the fifth node judges that the data is not input into the fourth end node, outputting a result of successful transmission to the fourth end node; if the fourth node judges that the data is not input into the sixth node, if the sixth node judges that the data is input into the sixth node, outputting a result of failed transmission to a fifth end node, and if the sixth node judges that the data is not input into the sixth end node, outputting a result of successful transmission to the sixth end node; inputting the short message item judged as no by the first node into the seventh node, outputting a result of failed transmission to the seventh end node if the seventh node is judged as yes, and outputting a result of successful transmission to the eighth end node if the seventh node is judged as not;
generating a weighting attribute of the historical user according to a result of inputting the short message data of the historical user data set into the filtering model, and generating a weighting attribute of the user to be judged according to a result of inputting the short message data of the user data set to be judged into the filtering model; the formula for calculating the weighted attributes of the user is as follows:
where at represents the weighted attribute of the user, r (t) i ) The input result of the ith ending node after the short message data representing the user data set is input into the filtering model is the number of failures, q (t) i ) The number of results input by the ith ending node after the short message data of the user data set is input into the filtering model is represented;
the general attribute calculating unit is used for calculating a first attribute, a second attribute and a third attribute of the user to be judged and the historical user, wherein the calculating formula of the first attribute of the user is as follows: z is a radical of 1 N; the calculation formula of the second attribute of the user is as follows: z is a radical of 2 /z 1 (ii) a The calculation formula of the third attribute of the user is as follows: z is a radical of 3 /N；
Wherein N represents short message data of user data setThe number of short messages sent in (1); z is a radical of 1 The number of the short messages which are failed to be sent in the short message data of the user data set is represented; z is a radical of 2 Indicating the number of received short messages in the short message data of the user data set; z is a radical of 3 The number of the short messages which are sent in the short message data of the user data set and belong to the verification short messages is represented;
the similarity calculation unit is used for calculating the similarity between the user to be judged and the historical user, and the calculation formula of the similarity between the user to be judged and the ith historical user is as follows:
wherein x k K-th attribute, y, representing the user to be judged k A kth attribute representing a historical user;
the four attributes of the user are respectively a first attribute, a second attribute, a third attribute and a weighted attribute;
and the result generating unit is used for screening M historical users with the maximum similarity to the user to be judged according to the similarity between the user to be judged and the historical users to generate a similar user set, and judging whether the user to be judged is the number portability user or not according to the proportion of the historical users belonging to the number portability in the similar user set.
2. The system according to claim 1, wherein the data set of the user to be determined includes data of a plurality of short messages; the short message data comprises the content of the short message, the receiving number of the short message, the source of the short message, the sending time of the short message and the sending state of the short message;
the data storage unit also stores a historical user data set, wherein the historical user data set is a set of short message data of a historical user, and the historical user data set comprises the short message data sent to the historical user.
3. The system according to claim 1, wherein the number of the sent messages in the user data set to be determined is the same as the number of the sent messages in the historical user data set; the quantity of the data of the sent short messages contained in each historical user data set is the same;
the historical user data set is composed of a certain amount of short message data extracted by the historical user according to the sequence of sending time;
the user data set to be judged and the historical user data set both contain a part of received short messages.
4. The system of claim 1, wherein the subscriber number portability judgment system,
the judgment trigger engine starts the judgment unit according to the trigger strategy to carry out number portability judgment on the user, and the user conforming to the trigger strategy is a user to be judged;
the trigger strategy is: the number of times of failure of sending the short message to the user within the set judgment time exceeds a first number threshold.
5. The system as claimed in claim 1, wherein the system determines whether the number of the historical users belonging to the number portability in the similar user set is greater than M/2, if so, the user to be determined is marked as the number portability user, otherwise, the user to be determined is marked as the non-number portability user.
6. The system as claimed in claim 1, wherein the data of a short message is stored in an entry, and the amount of the data of the short message is substantially the amount of the data of the short message.
7. The system as claimed in claim 1, wherein the system determines whether the short message is a verification short message according to the content of the short message and the check rule;
the inspection rule is that the content of the short message is judged to be a verification short message if one of the following two conditions is met, wherein the first condition is that the content of the short message comprises six continuous numeric characters;
the second condition is that the content of the short message contains the key words of 'verification' and/or 'code'.
8. The system according to claim 1, further comprising a marking module for marking the user to be determined as the number portability user based on the determination result of the result generating unit.
9. The system as claimed in claim 8, further comprising a feedback module for sending the information of the user to be determined marked as the number portability user to the party needing the short message service.
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| US9635526B2 (en) * | 2013-03-15 | 2017-04-25 | Tekelec, Inc. | Methods, systems, and computer readable media for utilizing a diameter proxy agent to communicate short message service (SMS) messages |
| JP5640172B2 (en) * | 2014-07-08 | 2014-12-10 | 長嶋 克佳 | Apparatus for automatically creating telephone number information and method for creating telephone number information using the apparatus |
| CN112449343B (en) * | 2019-08-30 | 2022-08-19 | 华为技术有限公司 | Method, equipment and system for managing user identity |
| CN112423293B (en) * | 2020-11-18 | 2022-12-06 | 山东兆永信息科技有限公司 | Method for improving message instruction delivery rate under number portability condition |
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