WO2015196650A1 - 实现号码携带放音的方法、设备、系统及计算机存储介质 - Google Patents

实现号码携带放音的方法、设备、系统及计算机存储介质 Download PDF

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Publication number
WO2015196650A1
WO2015196650A1 PCT/CN2014/088857 CN2014088857W WO2015196650A1 WO 2015196650 A1 WO2015196650 A1 WO 2015196650A1 CN 2014088857 W CN2014088857 W CN 2014088857W WO 2015196650 A1 WO2015196650 A1 WO 2015196650A1
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WIPO (PCT)
Prior art keywords
called party
npa
carried
information
query
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PCT/CN2014/088857
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English (en)
French (fr)
Inventor
戴志刚
王志松
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中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP14895759.0A priority Critical patent/EP3154234A4/en
Priority to US15/321,466 priority patent/US10341291B2/en
Publication of WO2015196650A1 publication Critical patent/WO2015196650A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/50—Address allocation
    • H04L61/5084—Providing for device mobility
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1016—IP multimedia subsystem [IMS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/74—Address processing for routing
    • H04L45/745—Address table lookup; Address filtering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/45—Network directories; Name-to-address mapping
    • H04L61/4557—Directories for hybrid networks, e.g. including telephone numbers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1063—Application servers providing network services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1096—Supplementary features, e.g. call forwarding or call holding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/4228—Systems providing special services or facilities to subscribers in networks
    • H04M3/42297—Systems providing special services or facilities to subscribers in networks with number portability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/12—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal
    • H04M7/1205—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal where the types of switching equipement comprises PSTN/ISDN equipment and switching equipment of networks other than PSTN/ISDN, e.g. Internet Protocol networks
    • H04M7/129—Details of providing call progress tones or announcements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
    • H04Q3/0029—Provisions for intelligent networking
    • H04Q3/005—Personal communication services, e.g. provisions for portability of subscriber numbers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00—Indexing scheme associated with group H04L61/00
    • H04L2101/30—Types of network names
    • H04L2101/38—Telephone uniform resource identifier [URI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00—Indexing scheme associated with group H04L61/00
    • H04L2101/30—Types of network names
    • H04L2101/385—Uniform resource identifier for session initiation protocol [SIP URI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1305—Software aspects
    • 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

Definitions

  • the present invention relates to the Internet Protocol Multimedia Subsystem (IP IMS) technology, and in particular, to a method, device, system and computer storage medium for implementing number portability and playback.
  • IP IMS Internet Protocol Multimedia Subsystem
  • NP Number Portability
  • the number portability is mainly implemented in the network element of the call session control function (CSCF, Call Session Control Function). Specifically, the CSCF queries by ENUM (Telephone Number Mapping) to obtain the included The number of the called party carries the called party number information of the information; and the call is routed according to the called party number information.
  • ENUM Telephone Number Mapping
  • the network element of the multimedia subsystem (IMS) is only used to complete the routing processing of the call, and does not determine whether the number of the called party number is carried, and cannot play the number carrying prompt tone to the calling party. The experience is poor.
  • the IMS network adopts the following number portability playback mode: the service call session control function (SCSCF, Serving-CSCF) triggers ENUM to perform ENUM query to obtain the called party number.
  • SCSCF Service Call session control function
  • NPA AS Number Portability Announcement Application Server
  • NPA AS Number Portability Announcement Application Server
  • the NPA AS first checks whether the calling party has the number portability play tone attribute; when the calling party has the playback attribute and the call request
  • the called party number is determined according to the called party number information and the local number carrying rule.
  • the NPA AS controls the multimedia resource function processor ( The MRFP (Media Resource Function Processor) plays the number carrying prompt tone to the calling party; after the playback ends, the NPA AS sends the call to the SCSCF, and the SCSCF performs call routing according to the routing configuration, and routes the call to the media gateway control function (MGCF, Media Gateway Control Function) for subsequent routing processing.
  • the MRFP Media Resource Function Processor
  • the number portability method has a large defect: 1) the calling party service information needs to be deployed in the NPA AS, and the non-NPA AS user cannot provide the number portability playing function; 2) the SCSCF routes all calls to the NPA AS. To some extent, the performance processing requirements of the SCSCF and the NPA AS are increased; 3) the routing configuration requirements of the SCSCF are relatively complicated, which is not conducive to subsequent operation and maintenance.
  • the embodiments of the present invention provide a method, a device, a system, and a computer storage medium for implementing number portability and playback, which can effectively implement number portability and playback while reducing the dependency between network elements and the performance impact of network elements.
  • An embodiment of the present invention provides a method for implementing number portability, and the method includes:
  • the call request is sent according to the IFC.
  • the triggering rule of the NPA AS includes that the trigger priority of the NPA AS is the lowest on the calling side.
  • the embodiment of the invention further provides a method for implementing number portability and playback, the method comprising:
  • Trigger ENUM to execute an ENUM query to obtain the query result
  • the multimedia resource function processor MRFP sends a playback command, so that the MRFP plays the number carrying prompt tone to the calling party according to the playback command.
  • the query result is that the called party number information in the call request belongs to the called party number information in the TEL URI format;
  • Determining whether the number of the called party number has occurred according to the query result includes: determining whether the number of the called party number has been carried according to the called party number information of the TEL URI format.
  • determining, according to the called party number information of the TEL URI format, whether the called party number has occurred number carrying comprises: extracting a network routing code and a user number in the called party number information of the TEL URI format And determining, according to the user number segment, whether the network routing code is consistent with the network routing code corresponding to the user number segment in the pre-configured first correspondence table, and if not, indicating that the called party number has occurred. Carry; if they are consistent, it means that the number of the called party has not been carried.
  • the query result is that the called party number information in the call request belongs to the called party number information in the SIP URI format;
  • Determining whether the number of the called party number has occurred according to the query result includes: determining whether the number of the called party number has been carried according to the called party number information in the SIP URI format.
  • determining, by the called party number information in the SIP URI format, whether the called party number has been carried in the number includes: extracting the network domain name and the user number segment in the called party number information in the SIP URI format Querying, according to the user number segment, whether the network domain name is consistent with the network domain name corresponding to the user number segment in the pre-configured second correspondence table, if not, It means that the number of the called party has been carried; if it is consistent, it means that the number of the called party has not been carried.
  • the method further includes: feeding back an error message to the SCSCF when the result of the determination is that the called party number does not carry a number.
  • An embodiment of the present invention provides an SCSCF, where the SCSCF includes: an acquiring module and a call sending module;
  • the acquiring module is configured to obtain calling party subscription information
  • the call sending module is configured to send a call request according to the IFC when the triggering rule of the NPA AS is included in the IFC of the calling party subscription information.
  • the triggering rule of the NPA AS includes that the trigger priority of the NPA AS is the lowest on the calling side.
  • the embodiment of the present invention further provides an NPA AS, where the NPA AS includes: a call receiving module, an execution module, a judgment processing module, and a sending module;
  • the call receiving module is configured to receive a call request
  • the execution module is configured to trigger an ENUM to perform an ENUM query to obtain a query result
  • the determining processing module is configured to determine, according to the query result, whether the number of the called party number has been carried, and obtain the determination result;
  • the sending module is configured to send a playback command to the MRFP when the judgment result obtained by the determination processing module is that the number of the called party number has been carried, so that the MRFP sends the call to the calling party according to the playback command.
  • the party play number carries a tone.
  • the query result is that the called party number information in the call request belongs to the called party number information in the TEL URI format;
  • the determining processing module is configured to determine, according to the called party number information in the TEL URI format, whether the number of the called party number has been carried.
  • the determining processing module includes a first extracting unit and a first query unit; among them,
  • the first extracting unit is configured to extract a network routing code and a user number segment in the called party number information in the TEL URI format;
  • the first query unit determines whether the network route code is consistent with the network route code corresponding to the user number segment in the pre-configured first correspondence table, and if not, the called party is called The number has been carried in the party number; if it is consistent, it means that the number is not carried in the called party number.
  • the query result is that the called party number information in the call request belongs to the called party number information in the SIP URI format;
  • the determining processing module is configured to determine, according to the called party number information in the SIP URI format, whether the number of the called party number has been carried.
  • the determining processing module includes a second extracting unit and a second query unit; wherein
  • the second extracting unit is configured to extract a network routing code and a user number segment in the called party number information in the SIP URI format;
  • the second querying unit is configured to query, according to the user number segment, whether the network routing code is consistent with the network routing code corresponding to the user number segment in the pre-configured first correspondence relationship table, and if not, the indication The number of the called party number has been carried; if it is consistent, it means that the number of the called party has not been carried.
  • the sending module is further configured to feed back an error message to the SCSCF when the judgment result obtained by the determining processing module is that the number of the called party number does not occur.
  • the embodiment of the invention further provides a system for implementing number portability and playback, the system comprising: SCSCF, NPA AS, ENUM, and MRFP; wherein
  • the SCSCF is configured to obtain calling party subscription information; when the calling party signs information When the triggering rule of the NPA AS is included in the IFC, the call request is sent to the NPA AS according to the IFC;
  • the NPA AS is configured to receive the call request, trigger ENUM to execute an ENUM query, and obtain a query result; determine, according to the query result, whether the called party number has been carried by the number, and obtain a judgment result; when the judgment result is Sending a playback command to the MRFP when the number of the called party number has been carried;
  • the ENUM is configured to perform an ENUM query
  • the MRFP is configured to receive a playback command sent by the NPA AS, and play a number-carrying tone to the calling party according to the playback command.
  • the query result is that the called party number information in the call request belongs to the called party number information in the TEL URI format;
  • the NPA AS is configured to determine, according to the called party number information in the TEL URI format, whether the number of the called party number has been carried.
  • the NPA AS is configured to extract a network routing code and a user number segment in the called party number information in the TEL URI format, and query whether the network routing code is pre-determined according to the user number segment.
  • the network route codes corresponding to the user number segments in the first correspondence table are consistent. If they are inconsistent, the number of the called party number has been carried. If they are consistent, the number of the called party does not carry the number.
  • the query result is that the called party number information in the call request belongs to the called party number information in the SIP URI format;
  • the NPA AS is configured to determine, according to the called party number information in the SIP URI format, whether the number of the called party number has been carried.
  • the NPA AS is configured to extract a network domain name and a user number segment in the called party number information in the SIP URI format, and query whether the network domain name is pre-configured according to the user number segment.
  • the network domain name corresponding to the user number segment in the second correspondence table is the same. If they are inconsistent, it means that the number of the called party has been carried; if it is consistent, it means that the number of the called party has not been carried.
  • the NPA AS is further configured to: when the judgment result is that the called party number does not carry the number, the error message is fed back to the SCSCF; the SCSCF is further configured to receive the error message. , continue the follow-up call process.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the method for implementing number portability and playback according to the embodiment of the invention.
  • the method, device, system and computer storage medium for implementing number portability and playback are provided by the embodiment of the present invention, and the SCSCF obtains the calling party subscription information; when the IFC of the calling party subscription information includes the triggering rule of the NPA AS
  • the SCSCF sends a call request to the NPA AS according to the IFC; the NPA AS receives the call request; triggers the ENUM to perform an ENUM query, and obtains a query result; and determines whether the called party number has been carried by the number according to the query result, and obtains the judgment result.
  • the NPA AS sends a playback command to the MRFP; the MRFP plays the number-carrying tone to the calling party according to the playback command.
  • the ENUM query is triggered by the NPA AS to perform ENUM query, and the number carrying judgment is performed after the ENUM query, so that the number-to-play playback can be effectively realized while reducing the dependency between the network elements.
  • the SCSCF triggers the NPA AS based on the IFC instead of the full routing mode, so that the performance processing requirements of the NPA AS and the SCSCF and the routing configuration complexity of the SCSCF can be effectively reduced.
  • the calling party is implemented by using the IFC.
  • the number carries the playback attribute, so that the NPA AS does not need to deploy the calling party service information, thereby improving the system processing capability of the NPA AS.
  • FIG. 1 is a schematic flowchart of a method for implementing number portability playback on an SCSCF side according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of a method for implementing number portability playback on an NPA AS side according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of implementing a method for implementing number portability and playback according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a structure of an SCSCF according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a structure of an NPA AS according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a structure of a determination processing module in an NPA AS according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of another component of a determination processing module in an NPA AS according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a system for implementing number portability and playback according to an embodiment of the present invention.
  • the SCSCF obtains the calling party subscription information; when the IFC of the calling party subscription information includes the triggering rule of the NPA AS, the SCSCF sends a call request to the NPA AS according to the IFC; the NPA AS receives The call request; triggering ENUM to execute an ENUM query, and obtaining a query result; determining, according to the query result, whether the number of the called party number has been carried, and obtaining a judgment result; when the judgment result is that the number of the called party number has occurred
  • the NPA AS sends a playback command to the MRFP; the MRFP receives the playback command sent by the NPA AS, and plays the number-carrying tone to the calling party according to the playback command.
  • the query result includes the called party number information of the call request in the TEL URI format or the SIP URI format in the call request. It is required to prevent the NPA AS from triggering the ENUM to perform the ENUM query.
  • the impact of the called party number information transformation on the implementation of other application server services requires that the triggering rule of the NPA AS included in the IFC includes the triggering priority of the NPA AS as the lowest on the calling side, that is, on the calling network side, the NPA AS is the last one.
  • the application server is triggered by the SCSCF.
  • FIG. 1 is a schematic flowchart of a method for implementing number portability playback on an SCSCF side according to an embodiment of the present invention. As shown in FIG. 1 , a method for implementing number portability playback on an SCSCF side according to an embodiment of the present invention includes:
  • Step S100 Acquire caller signing information
  • the home subscriber server stores the calling party subscription information; correspondingly, the acquiring the calling party subscription information may be that the SCSCF obtains the calling party subscription information from the HSS through the Cx interface.
  • Step S101 When the triggering rule of the NPA AS is included in the IFC of the calling party subscription information, the call request is sent according to the IFC.
  • the sending a call request is that the SCSCF sends a call request to the NPA AS according to the IFC;
  • the triggering rule of the NPA AS includes that the trigger priority of the NPA AS is the lowest on the calling side;
  • the IFC of the calling party subscription information includes the triggering rule of the NPA AS, it indicates that the calling party has the number carrying and playing property; otherwise, the calling party does not have the number carrying Tone attribute.
  • the IFC is used to implement the number-bearing and playback properties of the calling party, so that the NPA AS does not need to deploy the calling party service information, thereby improving the system processing capability of the NPA AS.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the method for implementing number portability and playback according to the embodiment of the invention.
  • FIG. 2 is a schematic flowchart of a method for implementing number portability playback on an NPA AS side according to an embodiment of the present invention.
  • a method for implementing number portability playback on an NPA AS side according to an embodiment of the present invention includes:
  • Step S200 receiving a call request
  • Step S201 trigger ENUM to execute an ENUM query to obtain a query result.
  • the ENUM query is a query of the format of the called party number information in the call request by ENUM.
  • the NPA AS after receiving the call request, the NPA AS sends an ENUM query request to the ENUM, and after the ENUM completes the ENUM query, the NPA AS feeds back the query result to the NPA AS.
  • the query result includes that the called party number information in the call request belongs to the TEL URI Called party number information in format or SIP URI format.
  • Step S202 Determine, according to the query result, whether the number of the called party number has been carried, and obtain a judgment result
  • determining whether the called party number has occurred number carrying according to the query result includes: NPA AS according to The called party number information of the TEL URI format determines whether the number of the called party number has been carried.
  • the NPA AS searches whether the network routing code is consistent with the network routing code corresponding to the user number segment in the pre-configured first correspondence table according to the user number segment, and if not, indicates the called party number. Number portability has occurred. If they match, the number of the called party number does not carry.
  • determining whether the called party number has occurred number carrying according to the query result includes: NPA AS according to The called party number information in the SIP URI format determines whether the number of the called party number has been carried.
  • the NPA AS extracts the network domain name and the user number segment in the called party number information in the SIP URI format; for example, the called party number information is sip:+8625 NDC SN@example.com.cn, where , example.com.cn represents the network domain name, and NDC represents the user number segment.
  • the NPA AS searches, according to the user number segment, whether the network domain name is consistent with the network domain name corresponding to the user number segment in the pre-configured second correspondence table, and if not, the called party number has occurred. If the number is carried, if the number is the same, the number of the called party does not occur. Number portability.
  • the first correspondence relationship table and the second correspondence relationship table need to be configured in advance; wherein the first correspondence relationship table is a correspondence between a user number segment pre-designated by the operator and a network route code.
  • the second correspondence table is a correspondence between a user number segment pre-designated by the operator and a network domain name.
  • Step S203 When the result of the determination is that the number of the called party number has been carried, the voice announcement command is sent to the MRFP, so that the MRFP plays the number carrying prompt tone to the calling party according to the playback command.
  • the NPA AS may send different playback commands to the MRFP according to different network types to which the called party number belongs. For example, if the number of the called party has been carried and carried to the network A, the number in the playback command carries a prompt tone for the user you dialed to be transferred to the network A.
  • the method further includes: feeding back an error message to the SCSCF when the judgment result is that the number of the called party number does not occur.
  • the NPA AS feeds back an error message to the SCSCF; after the SCSCF receives the error message, it continues the subsequent call flow, such as the called route. In this way, the NPA AS does not need to be added to the subsequent call flow, thereby reducing unnecessary performance overhead.
  • the NPA AS feeds back the error message to the SCSCF as an optional operation. Specifically, the NPA AS can select and determine by using the switch control button. Whether to feed back an error message to the SCSCF. Further, when the NPA AS determines that the error message is not fed back to the SCSCF through the switch control key, the initial INVITE session request may be fed back to the SCSCF, so that the SCSCF continues the subsequent call procedure after receiving the initial INVITE session request.
  • the embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the embodiment of the present invention.
  • the method for implementing the number carrying and playing sound is not limited to:
  • FIG. 3 is a schematic flowchart of a method for implementing number portability playback according to an embodiment of the present invention. As shown in FIG. 3, the method for implementing number portion playback in the embodiment of the present invention includes:
  • Step S300 The SCSCF obtains the calling party subscription information.
  • the calling party subscription information is stored in the HSS.
  • the SCSCF obtains the calling party subscription information, and the SCSCF obtains the calling party subscription information from the HSS through the Cx interface.
  • Step S301 When the triggering rule of the NPA AS is included in the IFC of the calling party subscription information, the SCSCF sends a call request to the NPA AS according to the IFC.
  • the triggering rule of the NPA AS includes that the trigger priority of the NPA AS is the lowest on the calling side;
  • the IFC of the calling party subscription information includes the triggering rule of the NPA AS, it indicates that the calling party has the number carrying and playing property; otherwise, the calling party does not have the number carrying Tone attribute.
  • the IFC is used to implement the number-bearing and playback properties of the calling party, so that the NPA AS does not need to deploy the calling party service information, thereby improving the system processing capability of the NPA AS.
  • Step S302 After receiving the call request, the NPA AS triggers ENUM to execute an ENUM query to obtain a query result.
  • the ENUM query is a query of the format of the called party number information in the call request by ENUM.
  • the NPA AS after receiving the call request, the NPA AS sends an ENUM query request to the ENUM, and after the ENUM completes the ENUM query, the NPA AS feeds back the query result to the NPA AS.
  • the query result includes the called party number information in the call request that belongs to the TEL URI format or the SIP URI format.
  • Step S303 Determine, according to the query result, whether the number of the called party number has been carried, and obtain a judgment result
  • determining whether the called party number has occurred number carrying according to the query result includes: NPA AS according to The called party number information of the TEL URI format determines whether the number of the called party number has been carried.
  • the NPA AS searches whether the network routing code is consistent with the network routing code corresponding to the user number segment in the pre-configured first correspondence table according to the user number segment, and if not, indicates the called party number. Number portability has occurred. If they match, the number of the called party number does not carry.
  • determining whether the called party number has occurred number carrying according to the query result includes: NPA AS according to The called party number information in the SIP URI format determines whether the number of the called party number has been carried.
  • the NPA AS extracts the network domain name and the user number segment in the called party number information in the SIP URI format; for example, the called party number information is sip:+8625 NDC SN@example.com.cn, where , example.com.cn represents the network domain name, and NDC represents the user number segment.
  • the NPA AS searches, according to the user number segment, whether the network domain name is consistent with the network domain name corresponding to the user number segment in the pre-configured second correspondence table, and if not, the called party number has occurred. If the number is carried, if the number is the same, it means that the number of the called party has not been carried.
  • the first correspondence relationship table and the second correspondence relationship table need to be configured in advance; wherein the first correspondence relationship table is a user number segment pre-designated by the operator. Corresponding relationship of the network route code; the second correspondence relationship table is a correspondence between the user number segment pre-designated by the operator and the network domain name.
  • Step S304 When the result of the determination is that the number of the called party number has been carried, the NPA AS sends a playback command to the MRFP.
  • the NPA AS may send different playback commands to the MRFP according to different network types to which the called party number belongs. For example, if the number of the called party has been carried and carried to the A network, the number in the playback command carries the prompt tone for the user you dialed to be transferred to network A.
  • Step S305 The MRFP plays the number carrying prompt tone to the calling party according to the playback command.
  • the NPA AS triggers the ENUM to perform the ENUM query by using the NPA AS, and performs the number portability judgment after the ENUM query, thereby reducing the dependency between the network elements.
  • the method further includes: when the judgment result is that the number of the called party does not carry the number, the NPA AS feeds back an error message to the SCSCF; after receiving the error message, the SCSCF continues the subsequent call process, such as the called party. Routing, etc. In this way, the NPA AS does not need to be added to the subsequent call flow, thereby reducing unnecessary performance overhead.
  • the "SESSION-CONTINUED" mode needs to be set in the IFC of the calling party subscription information stored in the HSS.
  • the NPA AS feeds back the error message to the SCSCF as an optional operation. Specifically, the NPA AS can select and determine by using the switch control button. Whether to feed back an error message to the SCSCF. Further, when the NPA AS determines that the error message is not fed back to the SCSCF through the switch control key, the initial INVITE session request may be fed back to the SCSCF, so that the SCSCF continues the subsequent call procedure after receiving the initial INVITE session request.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the method for implementing number portability and playback according to the embodiment of the invention.
  • the SCSCF of the embodiment of the present invention includes: an obtaining module 40 and a call sending module 41;
  • the obtaining module 40 is configured to obtain calling party subscription information.
  • the calling party subscription information is stored in the HSS.
  • the acquiring module 40 in the SCSCF obtains the calling party subscription information by acquiring the calling party subscription information from the HSS through the Cx interface.
  • the call sending module 41 is configured to send a call request according to the IFC when the triggering rule of the NPA AS is included in the IFC of the calling party subscription information.
  • the sending call request is that the call sending module 41 in the SCSCF sends a call request to the NPA AS according to the IFC.
  • the triggering rule of the NPA AS includes that the trigger priority of the NPA AS is the lowest on the calling side.
  • the IFC of the calling party subscription information includes the triggering rule of the NPA AS, it indicates that the calling party has the number carrying and playing property; otherwise, the calling party does not have the number carrying Tone attribute.
  • the IFC is used to implement the number-bearing and playback properties of the calling party, so that the NPA AS does not need to deploy the calling party service information, thereby improving the system processing capability of the NPA AS.
  • the obtaining module 40 and the call sending module 41 may be configured by a central processing unit (CPU), a microprocessor (MPU, a Micro Processor Unit), and a digital signal processor (DSP, Digital) located in the SCSCF. Signal Processor), or Field Programmable Gate Array (FPGA) implementation.
  • CPU central processing unit
  • MPU microprocessor
  • DSP digital signal processor
  • FPGA Field Programmable Gate Array
  • FIG. 5 is a schematic structural diagram of an NPA AS according to an embodiment of the present invention.
  • the NPA AS includes: a call receiving module 50, an executing module 51, a determining processing module 52, and a sending module 53.
  • the call receiving module 50 is configured to receive a call request.
  • the execution module 51 is configured to trigger the ENUM to perform an ENUM query to obtain a query result.
  • the ENUM query is an inquiry of the format of the called party number information in the call request by ENUM;
  • the execution module 51 in the NPA AS sends an ENUM query request to the ENUM, and after the ENUM completes the ENUM query, the query result is fed back to the execution module 51.
  • the query result includes the called party number information in the call request that belongs to the TEL URI format or the SIP URI format.
  • the determining processing module 52 is configured to determine, according to the query result, whether the number of the called party number has been carried, and obtain the determination result;
  • the determining processing module 52 is configured to be based on the called party number in the TEL URI format. The information determines whether the number of the called party has been carried.
  • the determination processing module 52 includes a first extraction unit 521a and a first query phrase 522a;
  • the first query unit 522a is configured to query, according to the user number segment, whether the network route code is consistent with the network route code corresponding to the user number segment in the pre-configured first correspondence relationship table, if If the number is inconsistent, it means that the number of the called party has been carried. If they are the same, the number of the called party has not been carried.
  • the determining processing module 52 is configured to be based on the called party number in the SIP URI format. The information determines whether the number of the called party has been carried.
  • the determination processing module 52 includes a second extraction unit 521b and a second query unit 522b;
  • the second extracting unit 521b is configured to extract a network domain name and a user number segment in the called party number information in the SIP URI format; for example, the called party number information is sip:+8625NDC SN@example.com .cn, where example.com.cn represents the network domain name and NDC represents the user number segment.
  • the second query unit 522b is configured to query, according to the user number segment, whether the network domain name is consistent with the network domain name corresponding to the user number segment in the pre-configured second correspondence table, and if not, Indicates that the number of the called party has been carried. If the number is the same, the number of the called party has not been carried.
  • the first correspondence relationship table and the second correspondence relationship table need to be configured in advance; wherein the first correspondence relationship table is a correspondence between a user number segment pre-designated by the operator and a network route code.
  • the second correspondence table is a correspondence between a user number segment pre-designated by the operator and a network domain name.
  • the sending module 53 is configured to send a playback command to the MRFP when the judgment result obtained by the determination processing module 52 is that the number of the called party number has been carried, so that the MRFP sends the sounding instruction according to the playback command.
  • the calling party plays the number to carry the prompt tone.
  • the sending module 53 is further configured to feed back an error message to the SCSCF when the result of the determination is that the called party number does not carry a number.
  • the sending module 53 in the NPA AS feeds back an error message to the SCSCF; after receiving the error message, the SCSCF continues the subsequent call flow, such as the called route.
  • the NPA AS does not need to be added to the subsequent call flow, thereby reducing unnecessary performance overhead.
  • the sending module 53 in the NPA AS feeds back the error message to the SCSCF as an optional operation, specifically, the sending in the NPA AS.
  • Module 53 can select whether to The SCSCF feedback error message.
  • the sending module 53 in the NPA AS determines that the error message is not fed back to the SCSCF through the switch control key, the initial INVITE session request may be fed back to the SCSCF, so that the SCSCF continues the subsequent call after receiving the initial INVITE session request. Process.
  • the call receiving module 50, the executing module 51, the determining processing module 52, the sending module 53, the first extracting unit 521a, the first querying unit 522a, the second extracting unit 521b, and the second querying unit 522b are both It can be implemented by a CPU, MPU, DSP, or FPGA located in the NPA AS.
  • FIG. 8 is a schematic structural diagram of a system for implementing number portability and playback according to an embodiment of the present invention. As shown in FIG. 8, the system for implementing number portability and playback includes: SCSCF80, NPAAS81, ENUM82, and MRFP83;
  • the SCSCF 80 is configured to obtain the calling party subscription information; when the IFC of the calling party subscription information includes the triggering rule of the NPA AS 81, send a call request to the NPA AS 81 according to the IFC;
  • the calling party subscription information is stored in the HSS.
  • the SCSCF 80 obtains the calling party subscription information, which may be obtained by acquiring the calling party subscription information from the HSS through the Cx interface.
  • the triggering rule of the NPA AS81 includes that the trigger priority of the NPA AS81 is the lowest on the calling side.
  • the triggering rule of the NPA AS81 when included in the IFC of the calling party subscription information, it indicates that the calling party has the number carrying and playing property; otherwise, the calling party does not have the number carrying Tone attribute. In this way, the IFC is used to implement the number portability of the calling party, so that the NPA AS81 does not need to deploy the calling party service information, thereby improving the system processing capability of the NPA AS81.
  • the NPA AS 81 is configured to receive the call request; trigger ENUM 82 to perform an ENUM query to obtain a query result;
  • the NPA AS 81 sends an ENUM query request to the ENUM 82. After completing the ENUM query, the ENUM 82 feeds back the query result to the NPA AS 81.
  • the query result includes the called party number information in the call request that belongs to the TEL URI format or the SIP URI format.
  • the NPA AS 81 is configured to determine, according to the query result, whether the number of the called party number has been carried, and obtain a determination result;
  • the NPA AS 81 is configured to determine according to the called party number information of the TEL URI format. Whether the number has been carried in the called party number.
  • the NPA AS 81 queries whether the network routing code is consistent with the network routing code corresponding to the user number segment in the pre-configured first correspondence table according to the user number segment, and if not, the called party is called. The number has been carried in the party number. If they match, the number of the called party has not been carried.
  • the NPA AS 81 is configured to determine, according to the called party number information of the SIP URI format. Whether the number has been carried in the called party number.
  • the NPA AS 81 extracts a network domain name and a user number segment in the called party number information in the SIP URI format; for example, the called party number information is sip:+8625 NDC SN@example.com.cn Where example.com.cn represents the network domain name and NDC represents the user number segment.
  • the NPA AS 81 queries, according to the user number segment, whether the network domain name is consistent with the network domain name corresponding to the user number segment in the pre-configured second correspondence table, if not If it is consistent, it means that the number of the called party has been carried. If it is consistent, it means that the number of the called party has not been carried.
  • the first correspondence relationship table and the second correspondence relationship table need to be configured in advance; wherein the first correspondence relationship table is a correspondence between a user number segment pre-designated by the operator and a network route code.
  • the second correspondence table is a correspondence between a user number segment pre-designated by the operator and a network domain name.
  • the NPA AS 81 is further configured to send a playback command to the MRFP 83 when the determination result is that the number of the called party number has been carried;
  • the NPA AS 81 may send different playback commands to the MRFP 83 according to the type of network to which the called party number belongs. For example, if the number of the called party has been carried and carried to the network A, the number in the playback command carries a prompt tone for the user you dialed to be transferred to the network A.
  • the ENUM 82 is configured to perform an ENUM query; the ENUM query is an ENUM query for a format of the called party number information in the call request;
  • the MRFP 83 is configured to play a number portability tone to the calling party according to the playback command.
  • the NPA AS 81 triggers the ENUM 82 to perform the ENUM query, and performs the number portability judgment after the ENUM query, thereby reducing the dependency between the network elements.
  • the NPA AS 81 is further configured to: when the judgment result is that the called party number does not carry the number portability, feed back an error message to the SCSCF 80; the SCSCF 80 is further configured to: after receiving the error message, continue to follow Call flow, such as called routing.
  • the NPA AS 81 does not need to be added to subsequent call flows, thereby reducing unnecessary performance overhead.
  • the "SESSION-CONTINUED" mode needs to be set in the IFC of the calling party subscription information stored in the HSS.
  • the NPA AS 81 feeds back the error message to the SCSCF 80 as an optional operation. Specifically, the NPA AS 81 can select whether to send an error message to the SCSCF 80 through the switch control key. Further, when the NPA AS 81 determines that the error message is not fed back to the SCSCF 80 through the switch control key, the initial INVITE session request may be fed back to the SCSCF 80, so that the SCSCF 80 continues the subsequent call flow after receiving the initial INVITE session request.
  • embodiments of the invention may be provided as a method, apparatus, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. Instructions are provided for implementation The steps of a function specified in a block or blocks of a flow or a flow and/or a block diagram of a flow chart.
  • the ENUM query is triggered by the NPA AS to perform ENUM query, and the number carrying judgment is performed after the ENUM query, so that the number-to-play playback can be effectively realized while reducing the dependency between the network elements.
  • the SCSCF triggers the NPA AS based on the IFC instead of the full routing mode, so that the performance processing requirements of the NPA AS and the SCSCF and the routing configuration complexity of the SCSCF can be effectively reduced.
  • the calling party is implemented by using the IFC.
  • the number carries the playback attribute, so that the NPA AS does not need to deploy the calling party service information, thereby improving the system processing capability of the NPA AS.

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Abstract

一种实现号码携带放音的方法、设备、系统及计算机存储介质。其中，服务呼叫会话控制功能（SCSCF）侧实现号码携带放音的方法包括：SCSCF获取主叫方签约信息（S100）；当所述主叫方签约信息的初始过滤规则（IFC）中包含有号码携带放音服务器（NPA AS）的触发规则时，SCSCF根据所述IFC向NPA AS发送呼叫请求（S101）。

Description

实现号码携带放音的方法、设备、系统及计算机存储介质 技术领域
本发明涉及互联网协议多媒体子系统(IP IMS，Internet Protocol Multimedia Subsystem)技术，尤其涉及一种实现号码携带放音的方法、设备、系统及计算机存储介质。
背景技术
号码携带(NP，Number Portability)是指电信用户在迁徙常驻地点或更换运营商的情况下仍然保持原有电信服务号码，也就是说，号码携带要求用户号码前后保持不变。在某些地区，号码携带作为一种电信监管强制要求，用以保护弱势电信运营商的利益；也有部分运营商在自身的网络内部提供号码携带，以满足更换常驻地点的用户的需求，进而降低用户流失率。
在现有IMS网络中，号码携带主要在呼叫会话控制功能(CSCF，Call Session Control Function)这一网元实现，具体地，CSCF通过电话号码映射(ENUM，Telephone Number Mapping)查询，获取包含有被叫方号码的号码携带信息的被叫方号码信息；再根据所述被叫方号码信息将呼叫路由。这样，在整个呼叫过程中，多媒体子系统(IMS)的网元只用于完成呼叫的路由处理，并未判断被叫方号码是否发生号码携带，不能向主叫方播放号码携带提示音，用户体验较差。
目前，为了实现对被叫方号码是否发生号码携带的判断，IMS网络采用了如下的号码携带放音方式：服务呼叫会话控制功能(SCSCF，Serving-CSCF)触发ENUM执行ENUM查询获取被叫方号码信息，将ENUM查询后的呼叫路由给号码携带放音服务器(NPA AS，Number Portability  Announcement Application Server)，并在呼叫请求中包含号码携带指示参数；NPA AS收到呼叫请求后，先检查主叫方是否具备号码携带播放提示音属性；在主叫方具备放音属性且呼叫请求中包含有有号码携带指示参数的情况下，根据被叫方号码信息及本地号码携带规则判断被叫方是否发生号码携带；当被叫方号码发生号码携带时，NPA AS控制多媒体资源功能处理器(MRFP，Media Resource Function Processor)给主叫方播放号码携带提示音；放音结束后，NPA AS将呼叫发给SCSCF，由SCSCF根据路由配置进行呼叫路由，将呼叫路由给媒体网关控制功能(MGCF，Media Gateway Control Function)进行后续路由处理。
然而，上述号码携带放音方式存在较大的缺陷：1)需要在NPA AS部署主叫方业务信息，非NPA AS用户不能提供号码携带放音功能；2)SCSCF将所有呼叫路由给NPA AS，一定程度上增加了SCSCF和NPA AS的性能处理要求；3)SCSCF的路由配置要求较为复杂，不利于后续运维。
发明内容
本发明实施例提供一种实现号码携带放音的方法、设备、系统及计算机存储介质，能够在有效实现号码携带放音的同时，降低网元间的依赖和网元的性能影响。
本发明实施例的技术方案是这样实现的：
本发明实施例提供一种实现号码携带放音的方法，该方法包括：
获取主叫方签约信息；
当所述主叫方签约信息的初始过滤规则(IFC，Initial Filter Criteria)中包含有NPA AS的触发规则时，根据所述IFC发送呼叫请求。
其中，所述NPA AS的触发规则包括NPA AS的触发优先级为主叫侧最低。
本发明实施例还提供一种实现号码携带放音的方法，该方法包括：
接收呼叫请求；
触发ENUM执行ENUM查询，获取查询结果；
根据所述查询结果判断被叫方号码是否已发生号码携带，获取判断结果；
当所述判断结果为所述被叫方号码已发生号码携带时，向多媒体资源功能处理器MRFP发送放音指令，以使MRFP根据所述放音指令向主叫方播放号码携带提示音。
在一实施例中，所述查询结果为所述呼叫请求中被叫方号码信息属于TEL URI格式的被叫方号码信息；
根据所述查询结果判断被叫方号码是否已发生号码携带包括：根据所述TEL URI格式的被叫方号码信息判断被叫方号码是否已发生号码携带。
在一实施例中，根据所述TEL URI格式的被叫方号码信息判断被叫方号码是否已发生号码携带包括：提取所述TEL URI格式的被叫方号码信息中的网络路由编码和用户号段；根据所述用户号段查询所述网络路由编码是否与预配置的第一对应关系表中所述用户号段所对应的网络路由编码一致，如果不一致，则表示被叫方号码已发生号码携带；如果一致，则表示被叫方号码未发生号码携带。
在一实施例中，所述查询结果为所述呼叫请求中被叫方号码信息属于SIP URI格式的被叫方号码信息；
根据所述查询结果判断被叫方号码是否已发生号码携带包括：根据所述SIP URI格式的被叫方号码信息判断被叫方号码是否已发生号码携带。
在一实施例中，根据所述SIP URI格式的被叫方号码信息判断被叫方号码是否已发生号码携带包括：提取所述SIP URI格式的被叫方号码信息中的网络域名和用户号段；根据所述用户号段查询所述网络域名是否与预配置的第二对应关系表中所述用户号段所对应的网络域名一致，如果不一致， 则表示被叫方号码已发生号码携带；如果一致，则表示被叫方号码未发生号码携带。
在一实施例中，所述方法还包括：当所述判断结果为所述被叫方号码未发生号码携带时，向SCSCF反馈错误消息。
本发明实施例提供一种SCSCF，该SCSCF包括：获取模块和呼叫发送模块；其中，
所述获取模块，配置为获取主叫方签约信息；
所述呼叫发送模块，配置为当所述主叫方签约信息的IFC中包含有NPA AS的触发规则时，根据所述IFC发送呼叫请求。
其中，所述NPA AS的触发规则包括NPA AS的触发优先级为主叫侧最低。
本发明实施例还提供一种NPA AS，该NPA AS包括：呼叫接收模块、执行模块、判断处理模块、以及发送模块；其中，
所述呼叫接收模块，配置为接收呼叫请求；
所述执行模块，配置为触发ENUM执行ENUM查询后获取查询结果；
所述判断处理模块，配置为根据所述查询结果判断被叫方号码是否已发生号码携带，获取判断结果；
所述发送模块，配置为当所述判断处理模块所获得的判断结果为所述被叫方号码已发生号码携带时，向MRFP发送放音指令，以使MRFP根据所述放音指令向主叫方播放号码携带提示音。
在一实施例中，所述查询结果为所述呼叫请求中被叫方号码信息属于TEL URI格式的被叫方号码信息；
所述判断处理模块，配置为根据所述TEL URI格式的被叫方号码信息判断被叫方号码是否已发生号码携带。
在一实施例中，所述判断处理模块包括第一提取单元和第一查询单元； 其中，
所述第一提取单元，配置为提取所述TEL URI格式的被叫方号码信息中的网络路由编码和用户号段；
所述第一查询单元，根据所述用户号段查询所述网络路由编码是否与预配置的第一对应关系表中所述用户号段所对应的网络路由编码一致，如果不一致，则表示被叫方号码已发生号码携带；如果一致，则表示被叫方号码未发生号码携带。
在一实施例中，所述查询结果为所述呼叫请求中被叫方号码信息属于SIP URI格式的被叫方号码信息；
所述判断处理模块，配置为根据所述SIP URI格式的被叫方号码信息判断被叫方号码是否已发生号码携带。
在一实施例中，所述判断处理模块包括第二提取单元和第二查询单元；其中，
所述第二提取单元，配置为提取所述SIP URI格式的被叫方号码信息中的网络路由编码和用户号段；
所述第二查询单元，配置为根据所述用户号段查询所述网络路由编码是否与预配置的第一对应关系表中所述用户号段所对应的网络路由编码一致，如果不一致，则表示被叫方号码已发生号码携带；如果一致，则表示被叫方号码未发生号码携带。
在一实施例中，所述发送模块，还配置为当所述判断处理模块所获得的判断结果为所述被叫方号码没有发生号码携带时，向SCSCF反馈错误消息。
本发明实施例又提供一种实现号码携带放音的系统，该系统包括：SCSCF、NPA AS、ENUM、以及MRFP；其中，
所述SCSCF，配置为获取主叫方签约信息；当所述主叫方签约信息的 IFC中包含有NPA AS的触发规则时，根据所述IFC向NPA AS发送呼叫请求；
所述NPA AS，配置为接收所述呼叫请求；触发ENUM执行ENUM查询，获取查询结果；根据所述查询结果判断被叫方号码是否已发生号码携带，获取判断结果；当所述判断结果为所述被叫方号码已发生号码携带时，向MRFP发送放音指令；
所述ENUM，配置为执行ENUM查询；
所述MRFP，配置为接收所述NPA AS发送的放音指令；根据所述放音指令向主叫方播放号码携带提示音。
在一实施例中，所述查询结果为所述呼叫请求中被叫方号码信息属于TEL URI格式的被叫方号码信息；
所述NPA AS，配置为根据所述TEL URI格式的被叫方号码信息判断被叫方号码是否已发生号码携带。
在一实施例中，所述NPA AS，配置为提取所述TEL URI格式的被叫方号码信息中的网络路由编码和用户号段；根据所述用户号段查询所述网络路由编码是否与预配置的第一对应关系表中所述用户号段所对应的网络路由编码一致，如果不一致，则表示被叫方号码已发生号码携带；如果一致，则表示被叫方号码未发生号码携带。
在一实施例中，所述查询结果为所述呼叫请求中被叫方号码信息属于SIP URI格式的被叫方号码信息；
所述NPA AS，配置为根据所述SIP URI格式的被叫方号码信息判断被叫方号码是否已发生号码携带。
在一实施例中，所述NPA AS，配置为提取所述SIP URI格式的被叫方号码信息中的网络域名和用户号段；根据所述用户号段查询所述网络域名是否与预配置的第二对应关系表中所述用户号段所对应的网络域名一致， 如果不一致，则表示被叫方号码已发生号码携带；如果一致，则表示被叫方号码未发生号码携带。
在一实施例中，所述NPA AS，还配置为当所述判断结果为所述被叫方号码未发生号码携带时，向SCSCF反馈错误消息；所述SCSCF，还配置为收到错误消息后，继续后续呼叫流程。
本发明实施例还提供了一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行本发明实施例所述的实现号码携带放音的方法。
本发明实施例所提供的实现号码携带放音的方法、设备、系统及计算机存储介质，SCSCF获取主叫方签约信息；当所述主叫方签约信息的IFC中包含有NPA AS的触发规则时，SCSCF根据所述IFC向NPA AS发送呼叫请求；NPA AS接收所述呼叫请求；触发ENUM执行ENUM查询，获取查询结果；根据所述查询结果判断被叫方号码是否已发生号码携带，获取判断结果；当所述判断结果为所述被叫方号码已发生号码携带时，NPA AS向MRFP发送放音指令；MRFP根据所述放音指令向主叫方播放号码携带提示音。如此，通过NPA AS触发ENUM执行ENUM查询，并在ENUM查询后进行号码携带判断，从而能在有效实现号码携带放音的同时，减少网元间的依赖性。
另外，本发明实施例中，SCSCF基于IFC触发NPA AS而非全路由方式，如此，能有效降低NPA AS和SCSCF的性能处理要求、以及SCSCF的路由配置复杂性；同时，利用IFC实现主叫方的号码携带放音属性，使得NPA AS无需部署主叫方业务信息，从而提高了NPA AS的系统处理能力。
附图说明
图1为本发明实施例SCSCF侧实现号码携带放音的方法的流程示意图；
图2为本发明实施例NPA AS侧实现号码携带放音的方法的流程示意图；
图3为本发明实施例实现号码携带放音的方法的实现流程示意图；
图4为本发明实施例SCSCF的组成结构示意图；
图5为本发明实施例NPA AS的组成结构示意图；
图6为本发明实施例NPA AS中判断处理模块的组成结构示意图；
图7为本发明实施例NPA AS中判断处理模块的另一组成结构示意图；
图8为本发明实施例实现号码携带放音的系统的组成结构示意图。
具体实施方式
在本发明实施例中，SCSCF获取主叫方签约信息；当所述主叫方签约信息的IFC中包含有NPA AS的触发规则时，SCSCF根据所述IFC向NPA AS发送呼叫请求；NPA AS接收所述呼叫请求；触发ENUM执行ENUM查询，获取查询结果；根据所述查询结果判断被叫方号码是否已发生号码携带，获取判断结果；当所述判断结果为所述被叫方号码已发生号码携带时，NPA AS向MRFP发送放音指令；MRFP接收所述NPA AS发送的放音指令，根据所述放音指令向主叫方播放号码携带提示音。
其中，所述查询结果包括所述呼叫请求中被叫方号码信息属于TEL URI格式或SIP URI格式的被叫方号码信息；需要说明的是，为避免NPA AS触发ENUM执行ENUM查询后所获取的被叫方号码信息变换对其他应用服务器业务实现的影响，要求IFC中包含的NPA AS的触发规则包括NPA AS的触发优先级为主叫侧最低，即在主叫网络侧，NPA AS作为最后一个应用服务器被SCSCF触发。
下面结合附图及具体实施例对本发明再作进一步详细的说明。
图1为本发明实施例SCSCF侧实现号码携带放音的方法的流程示意图，如图1所示，本发明实施例SCSCF侧实现号码携带放音的方法包括：
步骤S100：获取主叫方签约信息；
这里，归属用户服务器(HSS，Home Subscriber Server)中保存有主叫方签约信息；相应的，获取主叫方签约信息可以是SCSCF通过Cx接口从HSS中获取主叫方签约信息。
步骤S101：当所述主叫方签约信息的IFC中包含有NPA AS的触发规则时，根据所述IFC发送呼叫请求。
这里，所述发送呼叫请求是SCSCF根据所述IFC向NPA AS发送呼叫请求；所述NPA AS的触发规则包括NPA AS的触发优先级为主叫侧最低；
需要说明的是，当所述主叫方签约信息的IFC中包含有NPA AS的触发规则，则表示该主叫方具备号码携带放音属性；否则，表示所述主叫方不具备号码携带放音属性。如此，利用IFC实现了主叫方的号码携带放音属性，使得NPA AS无需部署主叫方业务信息，从而提高了NPA AS的系统处理能力。
本发明实施例还提供了一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行本发明实施例所述的实现号码携带放音的方法。
图2为本发明实施例NPA AS侧实现号码携带放音的方法的流程示意图，如图2所示，本发明实施例NPA AS侧实现号码携带放音的方法包括：
步骤S200：接收呼叫请求；
步骤S201：触发ENUM执行ENUM查询，获取查询结果；
其中，所述ENUM查询为ENUM对所述呼叫请求中被叫方号码信息所属格式的查询。
具体地，NPA AS收到呼叫请求后，向ENUM发送ENUM查询请求，ENUM完成ENUM查询后，向NPA AS反馈查询结果。
这里，所述查询结果包括所述呼叫请求中被叫方号码信息属于TEL URI 格式或SIP URI格式的被叫方号码信息。
步骤S202：根据所述查询结果判断被叫方号码是否已发生号码携带，获取判断结果；
这里，当所述查询结果为所述呼叫请求中被叫方号码信息属于TEL URI格式的被叫方号码信息时，根据所述查询结果判断被叫方号码是否已发生号码携带包括：NPA AS根据所述TEL URI格式的被叫方号码信息判断被叫方号码是否已发生号码携带。
具体地，NPA AS提取所述TEL URI格式的被叫方号码信息中的网络路由编码和用户号段；举例来说，被叫方号码信息为tel：+8625 NDC SN；npdi；rn＝ab，其中，ab代表网络路由编码，NDC代表用户号段。
进一步地，NPA AS根据所述用户号段查找所述网络路由编码是否与预配置的第一对应关系表中所述用户号段所对应的网络路由编码一致，如果不一致，则表示被叫方号码已发生号码携带，如果一致，则表示被叫方号码未发生号码携带。
这里，当所述查询结果为所述呼叫请求中被叫方号码信息属于SIP URI格式的被叫方号码信息时，根据所述查询结果判断被叫方号码是否已发生号码携带包括：NPA AS根据所述SIP URI格式的被叫方号码信息判断被叫方号码是否已发生号码携带。
具体地，NPA AS提取所述SIP URI格式的被叫方号码信息中的网络域名和用户号段；举例来说，被叫方号码信息为sip：+8625 NDC SN@example.com.cn，其中，example.com.cn代表网络域名，NDC代表用户号段。
进一步地，NPA AS根据所述用户号段查找所述网络域名是否与预配置的第二对应关系表中所述用户号段所对应的网络域名一致，如果不一致，则表示被叫方号码已发生号码携带，如果一致，则表示被叫方号码未发生 号码携带。
需要说明的是，在所述NPA AS中需要预先配置第一对应关系表和第二对应关系表；其中，所述第一对应关系表为运营商预先指定的用户号段和网络路由编码的对应关系；所述第二对应关系表为运营商预先指定的用户号段和网络域名的对应关系。
步骤S203：当所述判断结果为所述被叫方号码已发生号码携带时，向MRFP发送放音指令，以使MRFP根据所述放音指令向主叫方播放号码携带提示音。
这里，所述NPA AS可以根据被叫方号码所属的网络类型的不同，向MRFP发送不同的放音指令。举例来说，如果被叫方号码已发生号码携带，且携带到网络A，则放音指令中的号码携带提示音为您拨打的用户已移机到网络A。
进一步地，所述方法还包括，当所述判断结果为所述被叫方号码未发生号码携带时，向SCSCF反馈错误消息。
这里，NPA AS向SCSCF反馈错误消息；待SCSCF收到错误消息后，继续后续呼叫流程，如被叫路由等。如此，NPA AS无需加入到后续呼叫流程中，从而减少了不必要的性能开销。
这里，需要补充的是，当所述判断结果为所述被叫方号码未发生号码携带时，NPA AS向SCSCF反馈错误消息为可选操作，具体地，NPA AS可以通过开关控制键来选择确定是否向SCSCF反馈错误消息。进一步地，当NPA AS通过开关控制键确定不向SCSCF反馈错误消息的情况下，可以向SCSCF反馈初始INVITE会话请求，以使SCSCF在收到初始INVITE会话请求后，继续后续呼叫流程。
本发明实施例还提供了一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行本发明实施例 所述的实现号码携带放音的方法。
图3为本发明实施例实现号码携带放音的方法的实现流程示意图，如图3所示，本发明实施例实现号码携带放音的方法包括：
步骤S300：SCSCF获取主叫方签约信息；
这里，HSS中保存有主叫方签约信息；相应的，所述SCSCF获取主叫方签约信息包括SCSCF通过Cx接口从HSS中获取主叫方签约信息。
步骤S301：当所述主叫方签约信息的IFC中包含有NPA AS的触发规则时，SCSCF根据所述IFC向NPA AS发送呼叫请求；
这里，所述NPA AS的触发规则包括NPA AS的触发优先级为主叫侧最低；
需要说明的是，当所述主叫方签约信息的IFC中包含有NPA AS的触发规则，则表示该主叫方具备号码携带放音属性；否则，表示所述主叫方不具备号码携带放音属性。如此，利用IFC实现了主叫方的号码携带放音属性，使得NPA AS无需部署主叫方业务信息，从而提高了NPA AS的系统处理能力。
步骤S302：NPA AS收到所述呼叫请求后，触发ENUM执行ENUM查询，获取查询结果；
其中，所述ENUM查询为ENUM对所述呼叫请求中被叫方号码信息所属格式的查询。
具体地，NPA AS收到呼叫请求后，向ENUM发送ENUM查询请求，ENUM完成ENUM查询后，向NPA AS反馈查询结果。
这里，所述查询结果包括所述呼叫请求中被叫方号码信息属于TEL URI格式或SIP URI格式的被叫方号码信息。
步骤S303：根据所述查询结果判断被叫方号码是否已发生号码携带，获取判断结果；
这里，当所述查询结果为所述呼叫请求中被叫方号码信息属于TEL URI格式的被叫方号码信息时，根据所述查询结果判断被叫方号码是否已发生号码携带包括：NPA AS根据所述TEL URI格式的被叫方号码信息判断被叫方号码是否已发生号码携带。
具体地，NPA AS提取所述TEL URI格式的被叫方号码信息中的网络路由编码和用户号段；举例来说，被叫方号码信息为tel：+8625 NDC SN；npdi；rn＝ab，其中，ab代表网络路由编码，NDC代表用户号段。
进一步地，NPA AS根据所述用户号段查找所述网络路由编码是否与预配置的第一对应关系表中所述用户号段所对应的网络路由编码一致，如果不一致，则表示被叫方号码已发生号码携带，如果一致，则表示被叫方号码未发生号码携带。
这里，当所述查询结果为所述呼叫请求中被叫方号码信息属于SIP URI格式的被叫方号码信息时，根据所述查询结果判断被叫方号码是否已发生号码携带包括：NPA AS根据所述SIP URI格式的被叫方号码信息判断被叫方号码是否已发生号码携带。
具体地，NPA AS提取所述SIP URI格式的被叫方号码信息中的网络域名和用户号段；举例来说，被叫方号码信息为sip：+8625 NDC SN@example.com.cn，其中，example.com.cn代表网络域名，NDC代表用户号段。
进一步地，NPA AS根据所述用户号段查找所述网络域名是否与预配置的第二对应关系表中所述用户号段所对应的网络域名一致，如果不一致，则表示被叫方号码已发生号码携带，如果一致，则表示被叫方号码未发生号码携带。
需要说明的是，在所述NPA AS中需要预先配置第一对应关系表和第二对应关系表；其中，所述第一对应关系表为运营商预先指定的用户号段和 网络路由编码的对应关系；所述第二对应关系表为运营商预先指定的用户号段和网络域名的对应关系。
步骤S304：当所述判断结果为所述被叫方号码已发生号码携带时，NPA AS向MRFP发送放音指令；
这里，所述NPA AS可以根据被叫方号码所属的网络类型的不同，向MRFP发送不同的放音指令。举例来说，如果被叫方号码已发生号码携带，且携带到A网络，则放音指令中的号码携带提示音为您拨打的用户已移机到网络A。
步骤S305：MRFP根据所述放音指令向主叫方播放号码携带提示音。
如此，本发明实施例通过NPA AS触发ENUM执行ENUM查询，并在ENUM查询后进行号码携带判断，从而减少了网元间的依赖性。
进一步地，所述方法还包括，当所述判断结果为所述被叫方号码未发生号码携带时，NPA AS向SCSCF反馈错误消息；SCSCF收到错误消息后，继续后续呼叫流程，如被叫路由等。如此，NPA AS无需加入到后续呼叫流程中，从而减少了不必要的性能开销。需要说明的是，在HSS中保存的主叫方签约信息的IFC中需要设置有“SESSION-CONTINUED”方式。
这里，需要补充的是，当所述判断结果为所述被叫方号码未发生号码携带时，NPA AS向SCSCF反馈错误消息为可选操作，具体地，NPA AS可以通过开关控制键来选择确定是否向SCSCF反馈错误消息。进一步地，当NPA AS通过开关控制键确定不向SCSCF反馈错误消息的情况下，可以向SCSCF反馈初始INVITE会话请求，以使SCSCF在收到初始INVITE会话请求后，继续后续呼叫流程。
本发明实施例还提供了一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行本发明实施例所述的实现号码携带放音的方法。
图4为本发明实施例SCSCF的组成结构示意图，如图4所示，本发明实施例SCSCF包括：获取模块40和呼叫发送模块41；其中，
所述获取模块40，配置为获取主叫方签约信息；
这里，HSS中保存有主叫方签约信息；相应的，所述SCSCF中的获取模块40获取主叫方签约信息可以是通过Cx接口从HSS中获取主叫方签约信息。
所述呼叫发送模块41，配置为当所述主叫方签约信息的IFC中包含有NPA AS的触发规则时，根据所述IFC发送呼叫请求。
这里，所述发送呼叫请求是SCSCF中的呼叫发送模块41根据所述IFC向NPA AS发送呼叫请求。
其中，所述NPA AS的触发规则包括NPA AS的触发优先级为主叫侧最低。
需要说明的是，当所述主叫方签约信息的IFC中包含有NPA AS的触发规则，则表示该主叫方具备号码携带放音属性；否则，表示所述主叫方不具备号码携带放音属性。如此，利用IFC实现了主叫方的号码携带放音属性，使得NPA AS无需部署主叫方业务信息，从而提高了NPA AS的系统处理能力。
在实际应用中，所述获取模块40和呼叫发送模块41均可由位于SCSCF的中央处理器(CPU，Central Processing Unit)、微处理器(MPU，Micro Processor Unit)、数字信号处理器(DSP，Digital Signal Processor)、或现场可编程门阵列(FPGA，Field Programmable Gate Array)实现。
图5为本发明实施例NPA AS的组成结构示意图，如图5所示，本发明实施例NPA AS包括：呼叫接收模块50、执行模块51、判断处理模块52、以及发送模块53；其中，
所述呼叫接收模块50，配置为接收呼叫请求；
所述执行模块51，配置为触发ENUM执行ENUM查询后获取查询结果；
其中，所述ENUM查询为ENUM对所述呼叫请求中被叫方号码信息所属格式的查询；
具体地，NPA AS中的执行模块51向ENUM发送ENUM查询请求，ENUM完成ENUM查询后，向执行模块51反馈查询结果。
这里，所述查询结果包括所述呼叫请求中被叫方号码信息属于TEL URI格式或SIP URI格式的被叫方号码信息。
所述判断处理模块52，配置为根据所述查询结果判断被叫方号码是否已发生号码携带，获取判断结果；
这里，当所述查询结果为所述呼叫请求中被叫方号码信息属于TEL URI格式的被叫方号码信息时，所述判断处理模块52，配置为根据所述TEL URI格式的被叫方号码信息判断被叫方号码是否已发生号码携带。
在一实施例中，如图6所示，所述判断处理模块52包括第一提取单元521a和第一查询短语522a；其中，
所述第一提取单元521a，配置为提取所述TEL URI格式的被叫方号码信息中的网络路由编码和用户号段；举例来说，被叫方号码信息为tel：+8625NDC SN；npdi；rn＝ab，其中，ab代表网络路由编码，NDC代表用户号段。
进一步地，所述第一查询单元522a，配置为根据所述用户号段查询所述网络路由编码是否与预配置的第一对应关系表中所述用户号段所对应的网络路由编码一致，如果不一致，则表示被叫方号码已发生号码携带，如果一致，则表示被叫方号码未发生号码携带。
这里，当所述查询结果为所述呼叫请求中被叫方号码信息属于SIP URI格式的被叫方号码信息时，所述判断处理模块52，配置为根据所述SIP URI格式的被叫方号码信息判断被叫方号码是否已发生号码携带。
在一实施例中，如图7所示，所述判断处理模块52包括第二提取单元521b和第二查询单元522b；其中，
所述第二提取单元521b，配置为提取所述SIP URI格式的被叫方号码信息中的网络域名和用户号段；举例来说，被叫方号码信息为sip：+8625NDC SN@example.com.cn，其中，example.com.cn代表网络域名，NDC代表用户号段。
进一步地，所述第二查询单元522b，配置为根据所述用户号段查询所述网络域名是否与预配置的第二对应关系表中所述用户号段所对应的网络域名一致，如果不一致，则表示被叫方号码已发生号码携带，如果一致，则表示被叫方号码未发生号码携带。
需要说明的是，在所述NPA AS中需要预先配置第一对应关系表和第二对应关系表；其中，所述第一对应关系表为运营商预先指定的用户号段和网络路由编码的对应关系；所述第二对应关系表为运营商预先指定的用户号段和网络域名的对应关系。
所述发送模块53，配置为当所述判断处理模块52所获得的判断结果为所述被叫方号码已发生号码携带时，向MRFP发送放音指令，以使MRFP根据所述放音指令向主叫方播放号码携带提示音。
进一步地，所述发送模块53，还配置为当所述判断结果为所述被叫方号码未发生号码携带时，向SCSCF反馈错误消息。
这里，NPA AS中的发送模块53向SCSCF反馈错误消息；待SCSCF收到错误消息后，继续后续呼叫流程，如被叫路由等。如此，NPA AS无需加入到后续呼叫流程中，从而减少了不必要的性能开销。
这里，需要补充的是，当所述判断结果为所述被叫方号码未发生号码携带时，NPA AS中的发送模块53向SCSCF反馈错误消息为可选操作，具体地，NPA AS中的发送模块53可以通过开关控制键来选择确定是否向 SCSCF反馈错误消息。进一步地，当NPA AS中的发送模块53通过开关控制键确定不向SCSCF反馈错误消息的情况下，可以向SCSCF反馈初始INVITE会话请求，以使SCSCF在收到初始INVITE会话请求后，继续后续呼叫流程。
在实际应用中，所述呼叫接收模块50、执行模块51、判断处理模块52、发送模块53、第一提取单元521a、第一查询单元522a、第二提取单元521b、以及第二查询单元522b均可由位于NPA AS的CPU、MPU、DSP、或FPGA实现。
图8为本发明实施例实现号码携带放音的系统的组成结构示意图，如图8所示，本发明实施例实现号码携带放音的系统包括：SCSCF80、NPAAS81、ENUM82、以及MRFP83；其中，
所述SCSCF80，配置为获取主叫方签约信息；当所述主叫方签约信息的IFC中包含有NPA AS81的触发规则时，根据所述IFC向NPA AS81发送呼叫请求；
这里，HSS中保存有主叫方签约信息；相应的，所述SCSCF80获取主叫方签约信息具体可以是通过Cx接口从HSS中获取主叫方签约信息。
这里，所述NPA AS81的触发规则包括NPA AS81的触发优先级为主叫侧最低。
需要说明的是，当所述主叫方签约信息的IFC中包含有NPA AS81的触发规则，则表示该主叫方具备号码携带放音属性；否则，表示所述主叫方不具备号码携带放音属性。如此，利用IFC实现了主叫方的号码携带放音属性，使得NPA AS81无需部署主叫方业务信息，从而提高了NPA AS81的系统处理能力。
所述NPA AS81，配置为接收所述呼叫请求；触发ENUM82执行ENUM查询，获取查询结果；
具体地，NPA AS81向ENUM82发送ENUM查询请求，ENUM82完成ENUM查询后，向NPA AS81反馈查询结果。
这里，所述查询结果包括所述呼叫请求中被叫方号码信息属于TEL URI格式或SIP URI格式的被叫方号码信息。
所述NPA AS81，配置为根据所述查询结果判断被叫方号码是否已发生号码携带，获取判断结果；
这里，当所述查询结果为所述呼叫请求中被叫方号码信息属于TEL URI格式的被叫方号码信息时，所述NPA AS81，配置为根据所述TEL URI格式的被叫方号码信息判断被叫方号码是否已发生号码携带。
具体地，所述NPA AS81提取所述TEL URI格式的被叫方号码信息中的网络路由编码和用户号段；举例来说，被叫方号码信息为tel：+8625 NDC SN；npdi；rn＝ab，其中，ab代表网络路由编码，NDC代表用户号段。
进一步地，所述NPA AS81根据所述用户号段查询所述网络路由编码是否与预配置的第一对应关系表中所述用户号段所对应的网络路由编码一致，如果不一致，则表示被叫方号码已发生号码携带，如果一致，则表示被叫方号码未发生号码携带。
这里，当所述查询结果为所述呼叫请求中被叫方号码信息属于SIP URI格式的被叫方号码信息时，所述NPA AS81用于，根据所述SIP URI格式的被叫方号码信息判断被叫方号码是否已发生号码携带。
具体地，所述NPA AS81提取所述SIP URI格式的被叫方号码信息中的网络域名和用户号段；举例来说，被叫方号码信息为sip：+8625 NDC SN@example.com.cn，其中，example.com.cn代表网络域名，NDC代表用户号段。
进一步地，所述NPA AS81根据所述用户号段查询所述网络域名是否与预配置的第二对应关系表中所述用户号段所对应的网络域名一致，如果不 一致，则表示被叫方号码已发生号码携带，如果一致，则表示被叫方号码未发生号码携带。
需要说明的是，在所述NPA AS81中需要预先配置第一对应关系表和第二对应关系表；其中，所述第一对应关系表为运营商预先指定的用户号段和网络路由编码的对应关系；所述第二对应关系表为运营商预先指定的用户号段和网络域名的对应关系。
所述NPA AS81，还配置为当所述判断结果为所述被叫方号码已发生号码携带时，向MRFP83发送放音指令；
这里，所述NPA AS81可以根据被叫方号码所属的网络类型的不同，向MRFP83发送不同的放音指令。举例来说，如果被叫方号码已发生号码携带，且携带到网络A，则放音指令中的号码携带提示音为您拨打的用户已移机到网络A。
所述ENUM82，配置为执行ENUM查询；所述ENUM查询为ENUM对所述呼叫请求中被叫方号码信息所属格式的查询；
所述MRFP83，配置为根据所述放音指令向主叫方播放号码携带提示音。
如此，本发明实施例通过NPA AS81触发ENUM82执行ENUM查询，并在ENUM查询后进行号码携带判断，从而减少了网元间的依赖性。
进一步地，所述NPA AS81还用于，当所述判断结果为所述被叫方号码没有发生号码携带时，向SCSCF80反馈错误消息；所述SCSCF80还用于，收到错误消息后，继续后续呼叫流程，如被叫路由等。如此，所述NPA AS81无需加入到后续呼叫流程中，从而减少了不必要的性能开销。需要说明的是，在HSS中保存的主叫方签约信息的IFC中需要设置有“SESSION-CONTINUED”方式。
这里，需要补充的是，当所述判断结果为所述被叫方号码没有发生号 码携带时，NPA AS81向SCSCF80反馈错误消息为可选操作，具体地，NPA AS81可以通过开关控制键来选择确定是否向SCSCF80反馈错误消息。进一步地，当NPA AS81通过开关控制键确定不向SCSCF80反馈错误消息的情况下，可以向SCSCF80反馈初始INVITE会话请求，以使SCSCF80在收到初始INVITE会话请求后，继续后续呼叫流程。
本领域内的技术人员应明白，本发明的实施例可提供为方法、装置、或计算机程序产品。因此，本发明可采用硬件实施例、软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、装置、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现 在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
以上所述仅是本发明实施例的实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明实施例原理的前提下，还可以作出若干改进和润饰，这些改进和润饰也应视为本发明实施例的保护范围。
工业实用性
本发明实施例通过NPA AS触发ENUM执行ENUM查询，并在ENUM查询后进行号码携带判断，从而能在有效实现号码携带放音的同时，减少网元间的依赖性。另外，本发明实施例中，SCSCF基于IFC触发NPA AS而非全路由方式，如此，能有效降低NPA AS和SCSCF的性能处理要求、以及SCSCF的路由配置复杂性；同时，利用IFC实现主叫方的号码携带放音属性，使得NPA AS无需部署主叫方业务信息，从而提高了NPA AS的系统处理能力。

Claims (24)

  1. 一种实现号码携带放音的方法，所述方法包括：
    获取主叫方签约信息；
    当所述主叫方签约信息的初始过滤规则IFC中包含有号码携带放音服务器NPA AS的触发规则时，根据所述IFC发送呼叫请求。
  2. 根据权利要求1所述的方法，其中，所述NPA AS的触发规则包括NPA AS的触发优先级为主叫侧最低。
  3. 一种实现号码携带放音的方法，所述方法包括：
    接收呼叫请求；
    触发电话号码映射ENUM执行ENUM查询，获取查询结果；
    根据所述查询结果判断被叫方号码是否已发生号码携带，获取判断结果；
    当所述判断结果为所述被叫方号码已发生号码携带时，向多媒体资源功能处理器MRFP发送放音指令，以使MRFP根据所述放音指令向主叫方播放号码携带提示音。
  4. 根据权利要求3所述的方法，其中，所述查询结果为所述呼叫请求中被叫方号码信息属于TEL URI格式的被叫方号码信息；
    根据所述查询结果判断被叫方号码是否已发生号码携带包括：根据所述TEL URI格式的被叫方号码信息判断被叫方号码是否已发生号码携带。
  5. 根据权利要求4所述的方法，其中，根据所述TEL URI格式的被叫方号码信息判断被叫方号码是否已发生号码携带包括：
    提取所述TEL URI格式的被叫方号码信息中的网络路由编码和用户号段；根据所述用户号段查询所述网络路由编码是否与预配置的第一对应关系表中所述用户号段所对应的网络路由编码一致，如果不一致，则表示被叫方号码已发生号码携带；如果一致，则表示被叫方号码未发生号码携带。
  6. 根据权利要求3所述的方法，其中，所述查询结果为所述呼叫请求中被叫方号码信息属于SIP URI格式的被叫方号码信息；
    根据所述查询结果判断被叫方号码是否已发生号码携带包括：根据所述SIP URI格式的被叫方号码信息判断被叫方号码是否已发生号码携带。
  7. 根据权利要求6所述的方法，其中，根据所述SIP URI格式的被叫方号码信息判断被叫方号码是否已发生号码携带包括：
    提取所述SIP URI格式的被叫方号码信息中的网络域名和用户号段；根据所述用户号段查询所述网络域名是否与预配置的第二对应关系表中所述用户号段所对应的网络域名一致，如果不一致，则表示被叫方号码已发生号码携带；如果一致，则表示被叫方号码未发生号码携带。
  8. 根据权利要求3至7任一项所述的方法，其中，所述方法还包括：当所述判断结果为所述被叫方号码未发生号码携带时，向服务呼叫会话控制功能SCSCF反馈错误消息。
  9. 一种SCSCF，所述SCSCF包括：获取模块和呼叫发送模块；
    所述获取模块，配置为获取主叫方签约信息；
    所述呼叫发送模块，配置为当所述主叫方签约信息的IFC中包含有NPA AS的触发规则时，根据所述IFC发送呼叫请求。
  10. 根据权利要求9所述的SCSCF，其中，所述NPA AS的触发规则包括NPA AS的触发优先级为主叫侧最低。
  11. 一种NPA AS，所述NPA AS包括：呼叫接收模块、执行模块、判断处理模块、以及发送模块；
    所述呼叫接收模块，配置为接收呼叫请求；
    所述执行模块，配置为触发ENUM执行ENUM查询，获取查询结果；
    所述判断处理模块，配置为根据所述查询结果判断被叫方号码是否已发生号码携带，获得判断结果；
    所述发送模块，配置为当所述判断处理模块所获得的判断结果为所述被叫方号码已发生号码携带时，向MRFP发送放音指令，以使MRFP根据所述放音指令向主叫方播放号码携带提示音。
  12. 根据权利要求11所述的NPA AS，其中，所述查询结果为所述呼叫请求中被叫方号码信息属于TEL URI格式的被叫方号码信息；
    所述判断处理模块，配置为根据所述TEL URI格式的被叫方号码信息判断被叫方号码是否已发生号码携带。
  13. 根据权利要求12所述的NPA AS，其中，所述判断处理模块包括：第一提取单元和第一查询单元；
    所述第一提取单元，配置为提取所述TEL URI格式的被叫方号码信息中的网络路由编码和用户号段；
    所述第一查询单元，配置为根据所述用户号段查询所述网络路由编码是否与预配置的第一对应关系表中所述用户号段所对应的网络路由编码一致，如果不一致，则表示被叫方号码已发生号码携带；如果一致，则表示被叫方号码未发生号码携带。
  14. 根据权利要求11所述的NPA AS，其中，所述查询结果为所述呼叫请求中被叫方号码信息属于SIP URI格式的被叫方号码信息；
    所述判断处理模块，配置为根据所述SIP URI格式的被叫方号码信息判断被叫方号码是否已发生号码携带。
  15. 根据权利要求14所述的NPA AS，其中，所述判断处理模块包括：第二提取单元和第二查询单元；
    所述第二提取单元，配置为提取所述SIP URI格式的被叫方号码信息中的网络路由编码和用户号段；
    所述第二查询单元，配置为根据所述用户号段查询所述网络路由编码是否与预配置的第一对应关系表中所述用户号段所对应的网络路由编码一 致，如果不一致，则表示被叫方号码已发生号码携带；如果一致，则表示被叫方号码未发生号码携带。
  16. 根据权利要求11至15任一项所述的NPA AS，其中，所述发送模块，还配置为当所述判断处理模块所获得的判断结果为所述被叫方号码未发生号码携带时，向SCSCF反馈错误消息。
  17. 一种实现号码携带放音的系统，所述系统包括：SCSCF、NPA AS、ENUM、以及MRFP；
    所述SCSCF，配置为获取主叫方签约信息；确定所述主叫方签约信息的IFC中包含有NPA AS的触发规则时，根据所述IFC向NPA AS发送呼叫请求；
    所述NPA AS，配置为接收所述呼叫请求；触发ENUM执行ENUM查询，获取查询结果；根据所述查询结果判断被叫方号码是否已发生号码携带，获取判断结果；当所述判断结果为所述被叫方号码已发生号码携带时，向MRFP发送放音指令；
    所述ENUM，配置为执行ENUM查询；
    所述MRFP，配置为接收所述NPA AS发送的放音指令；根据所述放音指令向主叫方播放号码携带提示音。
  18. 根据权利要求17所述的系统，其中，所述查询结果为所述呼叫请求中被叫方号码信息属于TEL URI格式的被叫方号码信息；
    所述NPA AS，配置为根据所述TEL URI格式的被叫方号码信息判断被叫方号码是否已发生号码携带。
  19. 根据权利要求18所述的系统，其中，所述NPA AS，配置为提取所述TEL URI格式的被叫方号码信息中的网络路由编码和用户号段；根据所述用户号段查询所述网络路由编码是否与预配置的第一对应关系表中所述用户号段所对应的网络路由编码一致，如果不一致，则表示被叫方号码 已发生号码携带；如果一致，则表示被叫方号码未发生号码携带。
  20. 根据权利要求17所述的系统，其中，所述查询结果为所述呼叫请求中被叫方号码信息属于SIP URI格式的被叫方号码信息；
    所述NPA AS，配置为根据所述SIP URI格式的被叫方号码信息判断被叫方号码是否已发生号码携带。
  21. 根据权利要求20所述的系统，其中，所述NPA AS，配置为提取所述SIP URI格式的被叫方号码信息中的网络域名和用户号段；根据所述用户号段查询所述网络域名是否与预配置的第二对应关系表中所述用户号段所对应的网络域名一致，如果不一致，则表示被叫方号码已发生号码携带；如果一致，则表示被叫方号码未发生号码携带。
  22. 根据权利要求17至21任一项所述的系统，其中，所述NPA AS，还配置为当所述判断结果为所述被叫方号码未发生号码携带时，向SCSCF反馈错误消息；所述SCSCF，还配置为收到错误消息后，继续后续呼叫流程。
  23. 一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行权利要求1或2所述的实现号码携带放音的方法。
  24. 一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行权利要求3至8任一项所述的实现号码携带放音的方法。
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