CN109548185B - Group user number portability communication method and gateway mobile switching center - Google Patents
Group user number portability communication method and gateway mobile switching center Download PDFInfo
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- H04M3/42034—Calling party identification service
- H04M3/42042—Notifying the called party of information on the calling party
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Abstract
The embodiment of the invention relates to a group user number portability communication method, a gateway mobile switching center, a call session control function entity and a service control center, wherein the method comprises the following steps: the technical scheme includes that the obtained call request message is sent to a called call session control function entity in response to a first connection message sent by a calling service control center, the called service control center corresponding to the called number is determined based on a uniform resource identifier corresponding to the called number fed back by the called call session control function entity, the first monitoring request message is sent to the called service control center, a second connection message fed back by the called service control center is received, and caller identification information is generated based on the second connection message.
Description
Technical Field
The invention belongs to the technical field of number portability communication, and particularly relates to a group user number portability communication method, a gateway mobile switching center, a call session control function entity and a service control center.
Background
With the development of science and technology, terminals (such as mobile phones and the like) become essential articles in life of people. And along with the continuous improvement of the living quality of people, higher requirements are made on the consumption experience.
Mobile virtual private network services provide a logical private network to certain enterprises, groups, etc. Only one user is allowed to join a short number group network. In the prior art, network operators (Unicom, Mobile, Telecommunications) implement a number portability policy to enhance the consumer experience of people. However, this makes operators not only need to perform technical preparation, database construction, and network modification, add corresponding devices, expand and modify existing devices, but also need to solve the problems of charging, number inquiry, and some management, and these technical implementation all require huge investment and also require a certain amount of time. Although the original trust department requires mobile operators to implement the policy of 'take a number and transfer a package of food', operators in various regions have certain difficulty due to large difference of capability of a support system, and fusion of different charging and operation analysis systems, so that a schedule for comprehensively implementing the policy by many operators is greatly delayed. And because of the huge number of mobile phone users in China, the implementation of number portability will put higher requirements on the performance of the user information database.
Therefore, how to ensure the normal communication of the user becomes a technical problem to be solved urgently at present.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method, a gateway mobile switching center, a call session control function entity and a service control center, which can ensure the normal communication of users, in order to overcome the above-mentioned shortcomings in the prior art.
According to an aspect of the embodiments of the present invention, an embodiment of the present invention provides a group user number portability communication method, when a group user number portability group is called in a CS domain and a calling party is a group user in the CS domain, the method includes the steps of:
responding to a first connection message sent by a service control center of a calling party, and sending the obtained call request message to a called call session control function entity;
determining a called service control center corresponding to a called number based on a uniform resource identifier corresponding to the called number fed back by the called call session control function entity;
sending a first monitoring request message to the called service control center, and receiving a second connection message fed back by the called service control center;
and generating caller identification information based on the second connection message.
Further, before receiving the first connection message sent by the service control center of the calling party, the method further includes the steps of:
receiving the call request message sent by a base station, and determining a service control center of the calling party according to the call request message;
and sending a second monitoring request message to the service control center of the calling party, and receiving the first connection message fed back by the service control center of the calling party.
Further, the generating caller identification information based on the second connection message specifically includes:
extracting calling number information in the second connection message;
judging whether the calling number corresponding to the calling number information carries a prefix or not;
and if so, removing the prefix, and generating caller identification information according to the calling number from which the prefix is removed.
According to another aspect of the embodiments of the present invention, an embodiment of the present invention further provides a gateway mobile switching center, where when a group user carrying a number and changing a network is a called party in a CS domain, and a calling party is a group user in the CS domain, the gateway mobile switching center includes: a first sending module, a first determining module, a first receiving module and a first generating module, wherein,
the first sending module is configured to: responding to a first connection message sent by a service control center of a calling party, and sending the obtained call request message to a called call session control function entity;
the first determination module is to: determining a called service control center corresponding to a called number based on a uniform resource identifier corresponding to the called number fed back by the called call session control function entity;
the first sending module is further configured to: sending a first monitoring request message to the called service control center;
the first receiving module is configured to: receiving a second connection message fed back by the called service control center;
the first generation module is used for: and generating caller identification information based on the second connection message.
Further, the first receiving module is further configured to: receiving a call request message sent by a base station;
the first determination module is further to: determining the service control center of the calling party according to the call request message;
the first sending module is further configured to: sending a second monitoring request message to the service control center of the calling party;
the first receiving module is further configured to: and receiving the first connection message fed back by the service control center of the calling party.
Further, the first generating module is specifically configured to: and extracting the calling number information in the second connection message, judging whether the calling number corresponding to the calling number information carries a prefix, if so, removing the prefix, and generating caller identification information according to the calling number from which the prefix is removed.
According to another aspect of the embodiments of the present invention, an embodiment of the present invention further provides a group user number portability communication method, where when a group user number portability group is called in a CS domain and a calling party is a group user in the CS domain, the method includes the steps of:
responding to the acquired call request message, sending a query request to a telephone number mapping server, wherein the query request carries name authority pointer record information corresponding to a queried called number;
acquiring a uniform resource identifier corresponding to the called number fed back by the telephone number mapping server;
and sending the uniform resource identifier to a gateway mobile switching center.
According to another aspect of the embodiments of the present invention, an embodiment of the present invention further provides a call session control function entity, including: a second sending module and a first obtaining module, wherein,
the second sending module is configured to: responding to the acquired call request message, sending a query request to a telephone number mapping server, wherein the query request carries name authority pointer record information corresponding to a queried called number;
the first obtaining module is configured to: acquiring a uniform resource identifier corresponding to the called number fed back by the telephone number mapping server;
the second sending module is further configured to: and sending the uniform resource identifier to a gateway mobile switching center.
According to another aspect of the embodiments of the present invention, an embodiment of the present invention further provides a group user number portability communication method, including the steps of:
acquiring a first monitoring request message sent by a gateway mobile switching center;
determining a calling number based on the first monitoring request message;
adding a prefix to the calling number to obtain calling number information corresponding to the calling number;
generating a second connection message based on the calling number information;
and sending the second connection message to the gateway mobile switching center.
According to another aspect of the embodiments of the present invention, an embodiment of the present invention further provides a service control center, where the service control center includes: a second obtaining module, a second determining module, an adding module, a second generating module and a third sending module, wherein,
the second obtaining module is configured to: acquiring a first monitoring request message sent by a gateway mobile switching center;
the second determining module is configured to: determining a calling number based on the first monitoring request message;
the adding module is used for: adding a prefix to the calling number to obtain calling number information corresponding to the calling number;
the second generation module is to: generating a second connection message based on the calling number information;
the third sending module is configured to: and sending the second connection message to the gateway mobile switching center.
The invention has the beneficial effects that:
when the group user who carries number and changes network is called in CS domain and the calling is the group user in CS domain, the communication method of carrying number and changing network for the group user comprises the following steps: the technical scheme includes that the obtained call request message is sent to a called call session control function entity in response to a first connection message sent by a calling service control center, the called service control center corresponding to the called number is determined based on a uniform resource identifier corresponding to the called number fed back by the called call session control function entity, the first monitoring request message is sent to the called service control center, a second connection message fed back by the called service control center is received, and caller identification information is generated based on the second connection message.
Drawings
Fig. 1 is a schematic flowchart of a communication method for number portability of group users according to an embodiment of the present invention;
fig. 2 is a schematic block diagram of a gateway mobile switching center according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a communication method for number portability of group users according to another embodiment of the present invention;
fig. 4 is a schematic block diagram of a call session control function entity according to an embodiment of the present invention;
fig. 5 is a flowchart illustrating a communication method for number portability of group users according to another embodiment of the present invention;
fig. 6 is a schematic block diagram of a service control center according to an embodiment of the present invention;
fig. 7 is a signaling flowchart of a communication method for group subscriber number portability provided in an embodiment of the present invention;
the attached drawings are as follows:
1. a first sending module; 2. a first determination module; 3. a first receiving module; 4. a first generation module; 5. a second sending module; 6. a first acquisition module; 7. a second acquisition module; 8. a second determination module; 9. adding a module; 10. a second generation module; 11. and a third sending module.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the communication method for the number portability of group users, the gateway mobile switching center, the call session control function entity and the service control center of the present invention are further described in detail with reference to the accompanying drawings and the detailed description.
According to an aspect of the embodiment of the present invention, an embodiment of the present invention provides a group user number portability communication method.
Referring to fig. 1, fig. 1 is a flowchart illustrating a group user number portability communication method according to an embodiment of the present invention.
As shown in fig. 1, when the group user of number portability is called in the CS domain and the calling party is the group user of the CS domain, the method includes:
s1: and the gateway mobile switching center of the calling party responds to the first connection message sent by the service control center of the calling party and sends the obtained call request message to the called call session control function entity.
In this embodiment, when the service control center of the calling party determines that the calling party number and the called party number belong to the same group, the service control center of the calling party sends a first connection message to the gateway mobile switching center of the calling party, so as to trigger the gateway mobile switching center to send the obtained call request message to the call session control function entity of the called party.
Before the gateway mobile switching center of the calling party receives the first connection message sent by the service control center of the calling party, the method further comprises the following steps:
s01: the calling gateway mobile switching center receives the call request message sent by the base station, and determines the calling service control center according to the call request message.
Before this step, a step of establishing a connection between the calling subscriber terminal, the base station and the gateway mobile switching center is included. Specifically, the method comprises the following steps:
when a calling user dials a called user terminal corresponding to a called user through a calling user terminal, the calling user terminal initiates a service request message to a base station, and the base station forwards the service request message to a gateway mobile switching center of the calling user. The calling gateway mobile switching center establishes communication connection between the three based on the strategy of the operator.
After establishing communication connection, a calling user sends a calling request message to a base station through a calling user terminal, and the base station forwards the calling request message to a gateway mobile switching center of the calling user.
It is understood that the call request message includes information of the caller and information of the callee, specifically, caller a requests to call callee B. Of course, the information of the caller may include information such as the number of the caller. And based on the information of the caller (i.e. the number of the caller) in the call request message, the service control center of the caller corresponding to the caller can be determined. Specifically, the method comprises the following steps:
and the gateway mobile switching center of the calling party acquires the subscription information CSI of the calling party based on the number of the calling party. And the service control center of the calling party corresponding to the calling party can be determined based on the subscription information CSI of the calling party.
S02: and the calling gateway mobile switching center sends a second monitoring request message to the calling service control center and receives a first connection message fed back by the calling service control center.
In this step, the gateway mobile switching center of the calling party sends an IDP message (i.e., a second monitoring request message) to the service control center of the calling party. The parameters of the IDP message mainly include service components, a calling number, a called number, number attributes, and the like.
Before S1, a step of determining whether the calling number and the called number belong to the same group is further included, and the step of determining is specifically completed by the service control center of the calling. Specifically, the method comprises the following steps:
after determining the service control center of the calling party according to the call request message, the gateway mobile switching center of the calling party sends the call request message to the service control center of the calling party. And the calling service control center acquires the calling number and the called number based on the call request message and judges whether the calling number and the called number belong to the same group. Only after learning that the calling number and the called number belong to the same group, the service control center of the calling sends the first connection message to the gateway mobile switching center of the calling. And the calling service control center marks the call ticket corresponding to the call request message. Meanwhile, the calling service control center also sends an EEBE message (i.e. an identification event) to the calling gateway mobile switching center, sends an AC message (i.e. a call charging message) to the calling gateway mobile switching center, and sends an FCI message (a message for indicating the MSC/SSP to insert a sorting mark into a charging record) to the calling gateway mobile switching center, so that the calling gateway mobile switching center triggers the SSP (i.e. a signaling switching point) according to the AC message and the FCI message, so that the signaling switching point adds related content to the call ticket. Specifically, when belonging to the same group, the SSP performs charging processing on the call according to the corresponding call ticket record.
S2: and the calling gateway mobile switching center determines a called service control center corresponding to the called number based on the uniform resource identifier corresponding to the called number fed back by the called call session control function entity.
It can be understood that, after receiving the call request message, the called call session control function entity feeds back the uniform resource identifier corresponding to the called number to the calling gateway mobile switching center. And the gateway mobile switching center of the calling party can determine the called service control center corresponding to the called number according to the uniform resource identifier.
Specifically, the gateway mobile switching center of the calling party can obtain the subscription message corresponding to the called number according to the uniform resource identifier, and determine the service control center of the called party corresponding to the called number based on the subscription message corresponding to the called number.
The uniform resource identifier carries an operator identifier and a province label, and the carried called number starts with a routing code.
S3: and the gateway mobile switching center of the calling party sends the first monitoring request message to the service control center of the called party and receives a second connection message fed back by the service control center of the called party.
Similarly, the parameters of the first monitoring request message mainly include a service component, a calling number, a called number, a number attribute, and the like.
S4: the gateway mobile switching center of the calling party generates caller identification information based on the second connection message.
In a possible implementation technical solution, S4 specifically includes:
s4-1: the calling gateway mobile switching center extracts the calling number information in the second connection message.
S4-2: and judging whether the calling number corresponding to the calling number information carries the prefix or not.
S4-3: and if so, removing the prefix and generating caller identification information according to the calling number with the prefix removed.
That is to say, the gateway mobile switching center of the calling party removes the prefix of the calling number, generates caller identification information, and sends the caller identification information to the gateway mobile switching center of the called party, so that the gateway mobile switching center of the called party triggers the called party terminal to perform caller identification based on the caller identification information.
According to another aspect of the embodiment of the present invention, the embodiment of the present invention further provides a gateway mobile switching center.
Referring to fig. 2, fig. 2 is a block diagram of a gateway mobile switching center according to an embodiment of the present invention.
As shown in fig. 2, the gateway mobile switching center includes: a first sending module, a first determining module, a first receiving module and a first generating module, wherein,
the first sending module is used for: responding to a first connection message sent by a service control center of a calling party, and sending the obtained call request message to a called call session control function entity;
the first determining module is to: determining a called service control center corresponding to a called number based on a uniform resource identifier corresponding to the called number fed back by a called call session control function entity;
the first sending module is further configured to: sending the first monitoring request message to a called service control center;
the first receiving module is used for: receiving a second connection message fed back by a called service control center;
the first generation module is used for: and generating caller identification information based on the second connection message.
In a technical solution of a possible implementation, the first receiving module is further configured to: receiving a call request message sent by a base station;
the first determining module is further configured to: determining a service control center of a calling party according to the call request message;
the first sending module is further configured to: sending a second monitoring request message to a service control center of the calling party;
the first receiving module is further configured to: and receiving a first connection message fed back by the service control center of the calling party.
In a technical solution that may be implemented, the first generating module is specifically configured to: and extracting the calling number information in the second connection message, judging whether the calling number corresponding to the calling number information carries a prefix or not, if so, removing the prefix, and generating caller identification information according to the calling number without the prefix.
According to another aspect of the embodiment of the present invention, the embodiment of the present invention further provides a group user number portability communication method.
Referring to fig. 3, fig. 3 is a flowchart illustrating a communication method for number portability of group users according to another embodiment of the present invention.
As shown in fig. 3, when the group user of number portability is called in the CS domain and the calling party is the group user of the CS domain, the method includes:
s10: the called call session control function entity responds to the acquired call request message and sends an inquiry request to the telephone number mapping server, wherein the inquiry request carries name authority pointer record information corresponding to the inquired called number.
In this step, when the called call session control function entity receives the call request message sent by the gateway mobile switching center, it sends a query request to the telephone number mapping server.
S20: the called call session control function entity obtains the uniform resource identifier corresponding to the called number fed back by the telephone number mapping server.
S30: and the called call session control function entity sends the uniform resource identifier to the gateway mobile switching center.
According to another aspect of the embodiment of the present invention, an embodiment of the present invention further provides a call session control function entity.
Referring to fig. 4, fig. 4 is a block diagram of a call session control function entity according to an embodiment of the present invention.
As shown in fig. 4, when the group user of number portability is called in the CS domain and the calling party is the group user of the CS domain, the call session control function entity includes: a second sending module and a first obtaining module, wherein,
the second sending module is used for: responding to the acquired call request message, sending a query request to a telephone number mapping server, wherein the query request carries name authority pointer record information corresponding to a queried called number;
the first obtaining module is used for: acquiring a uniform resource identifier corresponding to a called number fed back by a telephone number mapping server;
the second sending module is further configured to: the uniform resource identifier is sent to a gateway mobile switching center.
According to another aspect of the embodiment of the present invention, another embodiment of the present invention further provides a group user number portability communication method.
Referring to fig. 5, fig. 5 is a flowchart illustrating a group user number portability communication method according to another embodiment of the present invention.
As shown in fig. 5, when the group user of number portability is called in the CS domain and the caller is the group user of the CS domain, the method includes:
s100: the called service control center acquires a first monitoring request message sent by a gateway mobile switching center.
S200: and the called service control center determines the calling number based on the first monitoring request message.
In this step, the called service control center may determine the calling number based on the first monitoring request.
S300: and the called service control center adds a prefix to the calling number to obtain calling number information corresponding to the calling number.
In this step, a prefix is added before the calling number, and the prefix may be a number (e.g., 60) or a character (e.g., zj). The calling number information is expressed as follows: prefix (60) + the calling VPMN short number or the calling virtual private mobile network short number.
S400: and the called service control center generates a second connection message based on the calling number information.
S500: the called service control center sends the second connection message to the gateway mobile switching center.
It should be noted that the second connection message may further include general number information corresponding to the calling number and/or address attribute information corresponding to the calling number. Wherein, the quality field of the universal number in the universal number information is 80H, and the address attribute information comprises the address attributes: unknown (02H).
When the called service control center sends the second connection message which also comprises the general number information corresponding to the calling number and the address attribute information corresponding to the calling number to the calling gateway mobile switching center, the calling gateway mobile switching center determines the call bill corresponding to the calling number based on the address attribute information, and writes the general number in the general number information as the calling number into the call bill.
According to another aspect of the embodiment of the present invention, an embodiment of the present invention further provides a service control center.
Referring to fig. 6, fig. 6 is a schematic block diagram of a service control center according to an embodiment of the present invention.
As shown in fig. 6, when the group user of number portability is called in the CS domain and the calling party is the group user of the CS domain, the service control center includes: a second obtaining module, a second determining module, an adding module, a second generating module and a third sending module, wherein,
the second obtaining module is used for: acquiring a first monitoring request message sent by a gateway mobile switching center;
the second determining module is used for: determining a calling number based on the first monitoring request message;
the adding module is used for: adding a prefix to a calling number to obtain calling number information corresponding to the calling number;
the second generation module is to: generating a second connection message based on the calling number information;
the third sending module is used for: the second connect message is sent to the gateway mobile switching center.
For a clearer understanding of the present embodiment, the present embodiment will now be described with reference to fig. 7. Specifically, the method comprises the following steps:
and after receiving the call request message sent by the user terminal, the base station executes step 1 and sends the call request message to the gateway mobile switching center of the calling party.
And after receiving the call request message, the gateway mobile switching center of the calling party determines a service control center of the calling party according to the call request message, and executes step 2, and sends a second monitoring request message to the service control center of the calling party.
After receiving the call request, the service control center of the calling party judges whether the calling and called numbers belong to the same group, if so, the service control center executes step 3, and sends a first connection message to the gateway mobile switching center of the calling party.
And after receiving the first connection message, the gateway mobile switching center of the calling party executes 4 and sends a call request message to the called call session control function entity.
And after receiving the call request message, the called call session control function entity executes 5 and sends a query request to the telephone number mapping server.
And after receiving the query request, the telephone number mapping server executes 6 and sends the uniform resource identifier corresponding to the called number to the called call session control function entity.
And after receiving the uniform resource identifier corresponding to the called number, the called call session control function entity executes 7 and sends the uniform resource identifier corresponding to the called number to the calling gateway mobile switching center.
And the calling gateway mobile switching center determines a called service control center corresponding to the called number based on the received uniform resource identifier corresponding to the called number, and executes 8 and sends a first monitoring request message to the called service control center.
And after receiving the first monitoring request message, the called service control center generates a second connection message, executes 9, and sends the second connection message to the calling gateway mobile switching center.
The communication method for group user number portability provided by the application when the group user with number portability is called in the CS domain and the calling party is the group user in the CS domain comprises the following steps: the technical scheme includes that the obtained call request message is sent to a called call session control function entity in response to a first connection message sent by a calling service control center, the called service control center corresponding to the called number is determined based on a uniform resource identifier corresponding to the called number fed back by the called call session control function entity, the first monitoring request message is sent to the called service control center, a second connection message fed back by the called service control center is received, and caller identification information is generated based on the second connection message.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (6)
1. A group user number portability communication method is characterized in that when a group user number portability is called in a CS domain and a calling party is a group user of the CS domain, the method comprises the following steps:
receiving a call request message sent by a base station, determining a service control center of a calling party according to the call request message, and sending the call request message to the service control center of the calling party;
sending a second monitoring request message to the service control center of the calling party, and receiving a first connection message fed back by the service control center of the calling party; the first connection message is sent after the calling service control center acquires a calling number and a called number based on the call request message and judges that the calling number and the called number belong to the same group;
responding to a first connection message sent by a service control center of a calling party, and sending the obtained call request message to a called call session control function entity;
determining a called service control center corresponding to a called number based on a uniform resource identifier corresponding to the called number fed back by the called call session control function entity, wherein the uniform resource identifier comprises an operator identifier, a province label and a called number beginning with a routing code;
sending a first monitoring request message to the called service control center, and receiving a second connection message fed back by the called service control center;
and generating caller identification information based on the second connection message.
2. The group user number portability communication method according to claim 1, wherein the generating of the caller identification information based on the second connection message specifically comprises:
extracting calling number information in the second connection message;
judging whether the calling number corresponding to the calling number information carries a prefix or not;
and if so, removing the prefix, and generating caller identification information according to the calling number from which the prefix is removed.
3. A gateway mobile switching center, when a group user carrying a number to change network is called in a CS domain and a calling party is a group user in the CS domain, comprising: a first sending module, a first determining module, a first receiving module and a first generating module, wherein,
the first receiving module is configured to: receiving a call request message sent by a base station;
the first determination module is to: determining a service control center of the calling party according to the call request message, and sending the call request message to the service control center of the calling party;
the first sending module is configured to: sending a second monitoring request message to the service control center of the calling party;
the first receiving module is configured to: receiving a first connection message fed back by the service control center of the calling party; the first connection message is sent after the calling service control center acquires a calling number and a called number based on the call request message and judges that the calling number and the called number belong to the same group;
the first sending module is further configured to: responding to a first connection message sent by a service control center of a calling party, and sending the obtained call request message to a called call session control function entity;
the first determination module is further to: determining a called service control center corresponding to a called number based on a uniform resource identifier corresponding to the called number fed back by the called call session control function entity, wherein the uniform resource identifier comprises an operator identifier, a province label and a called number beginning with a routing code;
the first sending module is further configured to: sending a first monitoring request message to the called service control center;
the first receiving module is further configured to: receiving a second connection message fed back by the called service control center;
the first generation module is used for: and generating caller identification information based on the second connection message.
4. The gateway mobile switching center of claim 3,
the first generation module is specifically configured to: and extracting the calling number information in the second connection message, judging whether the calling number corresponding to the calling number information carries a prefix, if so, removing the prefix, and generating caller identification information according to the calling number from which the prefix is removed.
5. A group user number portability communication method is characterized in that when a group user number portability is called in a CS domain and a calling party is a group user of the CS domain, the method comprises the following steps:
responding to the acquired call request message, sending a query request to a telephone number mapping server, wherein the query request carries name authority pointer record information corresponding to a queried called number;
acquiring a uniform resource identifier corresponding to the called number fed back by the telephone number mapping server, wherein the uniform resource identifier comprises an operator identifier, a provincial label and the called number beginning with a routing code;
and sending the uniform resource identifier to a gateway mobile switching center.
6. A call session control function entity, comprising: a second sending module and a first obtaining module, wherein,
the second sending module is configured to: responding to the acquired call request message, sending a query request to a telephone number mapping server, wherein the query request carries name authority pointer record information corresponding to a queried called number;
the first obtaining module is configured to: acquiring a uniform resource identifier corresponding to the called number fed back by the telephone number mapping server, wherein the uniform resource identifier comprises an operator identifier, a provincial label and the called number beginning with a routing code;
the second sending module is further configured to: and sending the uniform resource identifier to a gateway mobile switching center.
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