WO2010045882A1 - 一种呼叫属性判断方法、设备和系统 - Google Patents

一种呼叫属性判断方法、设备和系统 Download PDF

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Publication number
WO2010045882A1
WO2010045882A1 PCT/CN2009/074593 CN2009074593W WO2010045882A1 WO 2010045882 A1 WO2010045882 A1 WO 2010045882A1 CN 2009074593 W CN2009074593 W CN 2009074593W WO 2010045882 A1 WO2010045882 A1 WO 2010045882A1
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WIPO (PCT)
Prior art keywords
terminal number
information
call
planning
calling terminal
Prior art date
Application number
PCT/CN2009/074593
Other languages
English (en)
French (fr)
Inventor
尼凌飞
吴越
袁泉
张少伟
舒续祖
严光兵
彭世强
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN200910150738A external-priority patent/CN101729687A/zh
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2010045882A1 publication Critical patent/WO2010045882A1/zh
Priority to US13/093,297 priority Critical patent/US20110211684A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M7/00Arrangements for interconnection between switching centres
    • H04M7/006Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer
    • H04M7/0075Details of addressing, directories or routing tables
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00Network arrangements, protocols or services for addressing or naming
    • H04L61/09Mapping addresses
    • H04L61/10Mapping addresses of different types
    • H04L61/106Mapping addresses of different types across networks, e.g. mapping telephone numbers to data network addresses
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00Network arrangements, protocols or services for addressing or naming
    • H04L61/45Network directories; Name-to-address mapping
    • H04L61/4505Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols
    • H04L61/4511Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols using domain name system [DNS]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00Network arrangements, protocols or services for addressing or naming
    • H04L61/45Network directories; Name-to-address mapping
    • H04L61/4557Directories for hybrid networks, e.g. including telephone numbers

Definitions

  • the Federal Communications Commission requires North American switches responsible for voice calls to determine Call Type, such as: Local, Local Toll, Long Distance, International (International), etc., the switches responsible for voice calls in North America include the Public Switched Telephone Network Switch (PSTN Switch) and the Voice over Internet Protocol Switch (VOIP Switch). .
  • PSTN Switch Public Switched Telephone Network Switch
  • VOIP Switch Voice over Internet Protocol Switch
  • the planning information of the primary and called user numbers is crucial, that is, the local access and transport area (LATA) and the cost center (Rate Center, RC) to which the calling and called numbers belong. information.
  • LATA local access and transport area
  • RC Cost Center
  • the switch in order to accurately determine the Call Type, the switch must query the LATA and RC to which it belongs according to the calling and called number, and then combine the certain judgment logic to obtain the Call Type of the call.
  • the first six digits of the number that is, the NPA-NXX of the North American number, can uniquely determine the LATA, RC to which the number below it belongs, and the number of NPA-NXX in North America is correspondingly hundreds of thousands.
  • each switch needs to import the data and update it to the local data, which is costly to maintain.
  • Embodiments of the present invention provide a call attribute determination method, device, and system. By storing and managing the number planning information data by using the number information storage server, the maintenance cost is reduced, and the call attribute determination method, device and system proposed by the number information storage server are applied to realize the judgment of the terminal call attribute.
  • a call attribute judging method comprising the following steps:
  • a call control server comprising:
  • a receiving module configured to receive a call request message that is sent by the calling terminal and includes a calling terminal number and a called terminal number;
  • the first querying module is configured to query the number information storage server for the call request message received by the receiving module Planning information and/or planning associated information of the calling terminal number and/or the called terminal number;
  • a judging module configured to determine a call service corresponding to the call request message according to the calling terminal number and the planning information and/or planning association information of the called terminal number that are queried by the first query module Call properties.
  • a number information storage server comprising:
  • a storage module configured to store planning information of the number and/or plan associated information
  • a receiving module configured to receive a planning information query message of the calling terminal number and/or the called terminal number
  • the querying module is configured to query the storage module according to the calling terminal number and/or the planning information of the called terminal number received by the receiving module, and obtain the corresponding calling terminal number and/or The planning information of the terminal number is called; and/or the storage module is queried according to the planning information of the calling terminal number and/or the called terminal number, and the corresponding planning association information is obtained;
  • a sending module configured to send, by the query module, planning information of a corresponding calling terminal number and/or a called terminal number; and/or corresponding planning association information obtained by the querying module.
  • a call control network including:
  • a number information storage server configured to store planning information of the number and/or plan associated information
  • a call control server configured to query the number information storage server for planning information of a calling terminal number and/or a called terminal number of the calling service, and determine the calling service according to the planning information and/or the planning associated information Call properties.
  • FIG. 1 is a schematic flowchart diagram of a call attribute determining method according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic structural diagram of a call control network according to Embodiment 2 of the present invention.
  • FIG. 3 is a schematic diagram showing the relationship between LATA and RC according to an embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of a call attribute determining method according to Embodiment 3 of the present invention.
  • FIG. 5 is a schematic structural diagram of a network of a call control network for performing call attribute determination in an IMS network according to an embodiment of the present invention
  • FIG. 6 is a schematic flowchart of a method for determining a call attribute by an S-CSCF according to Embodiment 4 of the present invention
  • FIG. 7 is a schematic flowchart of a method for determining a call attribute by an AS according to Embodiment 5 of the present invention.
  • FIG. 8 is a schematic flowchart of a call attribute determining method according to Embodiment 6 of the present invention.
  • FIG. 9 is a schematic flowchart of a call attribute determining method according to Embodiment 7 of the present invention.
  • FIG. 10 is a schematic flowchart of a method for determining a call attribute of an I-CSCF/S-CSCF/AS according to Embodiment 8 of the present invention
  • FIG. 11 is a schematic flowchart of a method for determining a call attribute logic of an HSS/HLR according to Embodiment 9 of the present invention.
  • each call control device/switch in the prior art needs to import and maintain number planning information data. Once the number planning information data needs to be refreshed, each call control device/switch on the network needs to update the number planning information data.
  • the high maintenance cost also increases the possibility of problems caused by data out-of-synchronization on different call control devices/switches during data update; and the number of information in the number planning information itself is large, usually with hundreds of thousands of data.
  • Storage on each call control device/switch wastes storage space and increases the hardware overhead of each call control device/switch.
  • a number information storage server is added to the existing communication network system, and the number planning information and/or the planning related information are centrally stored and unifiedly managed, thereby achieving Reduce the impact of hardware and maintenance costs. Further, the application of the number information storage server, the embodiment of the present invention provides a call attribute determination method, device and system, and implements the judgment of the terminal call attribute.
  • a first embodiment of the present invention provides a method for determining a call attribute.
  • the specific process diagram is as shown in FIG. 1. The method includes the following steps: Step S101: Receive a call request message that includes a calling terminal number and a called terminal number sent by a calling terminal. .
  • Step S102 Query, according to the call request message, the number information storage server for the planning information of the calling terminal number and/or the called terminal number.
  • the query interface sends a query request message including the called terminal number to the number information storage server, and receives the query response message including the called terminal number planning information returned by the number information query server.
  • the planning information of the calling terminal number and the called terminal number is usually implemented by two queries, but in a specific application environment, in order to further save network resources, reduce interaction.
  • the number of information, the above query steps can be simplified in the following two cases, as follows:
  • Case 1 When the calling terminal registers, the call control server directly saves the planning information of the calling terminal number.
  • the number information storage server is queried to obtain planning information of the called terminal number.
  • the obtaining the planning information of the calling terminal number locally directly extracts the information on the call control server, and does not need to query the number information storage server.
  • the planning information of the locally stored calling terminal and the called terminal number is obtained.
  • the embodiment of the present invention proposes a further improvement scheme, which is cited on the one hand.
  • reduce the number of queries for planning information on the other hand, consider registering the relevant information of the registered user from the number information storage server and save it, if the calling and called terminals are When on a call control server, the call between the calling and called terminals can no longer query the number information storage server.
  • Step S103 Determine, according to the calling terminal number and the planning information of the called terminal number, the call attribute of the call service corresponding to the call request message.
  • the call control server determines the call attribute of the call service corresponding to the call request message according to the calling terminal number and the planned information of the called terminal number.
  • the call attribute of the call service corresponding to the call request message may also be determined according to the calling terminal number, the planning information of the called terminal number, and the planning associated information (LOCAL RC).
  • the planning association information may be stored locally or in a number information storage server. When the plan associated information is stored in the number information storage server, the plan information storage server may be queried for the plan related information.
  • Case 1 sending, according to the calling terminal number and the planning information of the called terminal number, a user planning association request to the number information storage server, and determining, according to the user planning association response sent by the number information storage server, The call attribute of the call service corresponding to the call request message.
  • the reference planning information is stored in the number information storage server, and the call control server sends a user planning association request to the number information storage server according to the calling terminal number and the planning information of the called terminal number. And the number information storage server queries the association planning information to provide a user planning association response; the call control server determines, according to the user planning association response, a call attribute of a call service corresponding to the call request message.
  • Case 2 Send a call request message including a calling terminal number and a called terminal number to the number information storage server, and receive a call attribute of the call service corresponding to the call request message sent by the number information storage server.
  • the call control server sends a call request message including a calling terminal number and a called terminal number to the number information storage server.
  • the number information storage server queries the calling terminal number and/or the planning information of the called terminal number.
  • the number information storage server may continue to obtain planning association information according to the planning information.
  • the number information storage server may determine the calling attribute, thereby Returns the call attribute of the call service corresponding to the call request message directly returned in the query result.
  • Case 3 After the inquiry of the calling terminal number, the called terminal number, and the planning related information are completed, directly The planning information of the calling terminal number, the called terminal number, and the planning association information are saved.
  • the calling terminal number, the planning information of the called terminal number, and the query of the planning related information are queried. It can be simplified. For example, the cache of the query record can be introduced to reduce the number of times of planning information and planning related information. It is also considered that when registering, the related information of the registered user is queried from the number information storage server and saved in the call control server. If the calling and called terminals are all on one call control server, the call between the calling and called terminals can no longer query the number information storage server.
  • the method further includes a subsequent update process, specifically: when the calling terminal number and/or the called terminal number are updated, the call control server queries the number information storage server.
  • the call control server determines the call attribute of the call service corresponding to the call request message.
  • the number information storage server mentioned in this embodiment may be a number information storage server, or may be a number information storage server pool composed of a plurality of number information storage servers, specifically referring to changes in content. This does not affect the scope of protection of the present invention, which is consistent throughout the text and will not be repeated hereinafter. Further, according to the specific application scenario, the foregoing technical solution proposed by the embodiment of the present invention may be further adjusted to the following two improvements:
  • Improvement 1 In the number information storage server, configure the corresponding planning parameters such as routing numbers for special service numbers (such as Ni l services in North America).
  • Ni l is a generic term for special numbers in North America, namely 211, 311, 411, 511, 611, 711, 811, 911. These numbers have special meanings in North America, which is only for convenience of description in the embodiment of the present invention. An example of the selection is given, and the specific content thereof is not described in detail in the embodiment of the present invention.
  • the call control server queries the number information storage server for the planning parameter corresponding to the service number, and the information that needs to be sent to the number information storage server includes the calling number during the query process. Because this type of business is often related to the location of the calling number.
  • the LATA and RC information are stored in the E164 Telephone Number Mapping (ENUM) server in a centralized manner, and the special service numbers such as Nil corresponding to each number are also stored in the ENUM server in the same manner.
  • ENUM E164 Telephone Number Mapping
  • the ENUM server is the number information storage server mentioned in the foregoing embodiment of the present invention, and the change of the specific name does not affect the protection scope of the embodiment of the present invention.
  • the network side needs to translate 211 into a planning parameter, that is, a routable 10-digit North American number rule (North America Numbering Plan). , NANP) number, and the translation is based on the LATA and RC information of the calling party number.
  • the RC area to which the translated 10-digit NANP number belongs and the RC area to which the calling party number belongs should be Consistent, but this is only the most ideal case in the example of the present invention, and whether or not it is consistent does not affect the scope of protection of the embodiments of the present invention.
  • the 10-bit NMP number is configured in the form of a parameter to a Naming Authority Pointer (NAPTR) record corresponding to the calling number of the user, and then the 10-digit NANP number is returned to the call along with the ENUM response. Control the server to achieve the purpose of implementing special service services at or near the location of the calling user.
  • NAPTR Naming Authority Pointer
  • the domain name system of the local call domain name set includes the calling terminal number and the planned domain name of the called terminal number; when the domain name system includes the planned domain name, determine that the calling terminal number and the called terminal number are located in the same local call.
  • the area receives the local call type parameter generated by the domain name system. When the domain name system does not include the planned domain name, it determines that the calling terminal number and the called terminal number are located in different local call areas.
  • the adjacent RCs are stored in the form of associated domain names.
  • RC1 is adjacent to RC2 and RC3, respectively, and "RCL RC2" and "" are stored in the DNS.
  • RCL RC3 "Two domain names, other adjacent RCs can be deduced by analogy.
  • the Local Calling Area information is also an important information, that is, the local call area mentioned in the foregoing, and its role is to help the call control server further determine Local or Local Toll type call, but Local Calling Area information is not released with LERG data.
  • the RC Name to which the calling party and the called user belong can be constructed in the form of a domain name, such as "RCL RC2", and then the NAPTR record of the DNS storing such associated domain name is queried.
  • the record is not queried, it means that the RC to which the primary and called users belong is not in a Local Calling Area, that is, the call attribute between the calling and called users is not Local; if the corresponding record is queried, the calling party is called The RC is in the same Local Calling Area, that is, the call attribute between the calling and called users is Local.
  • the DNS After the query is completed, the DNS returns the call attribute between the calling and called users to the call control server as a parameter. Is the information of Local Toll.
  • the technical solution of the embodiment of the present invention has the following advantages, because the solution for providing the number planning information data storage and management by using the number information storage server to provide the number planning information query service for each call control server is realized, thereby realizing Centralized storage and unified management of number planning information achieves the effect of reducing maintenance costs and saving storage space and hardware resources.
  • the present invention provides a call control network through the second embodiment.
  • the schematic diagram of the structure is shown in FIG. 2, including the number information storage server 1 and the call control server 2:
  • the number information storage server 1 is configured to store the planning information of the number and/or the planning association information, and may update the planning information of the number according to the routing update information, including:
  • the storage module 11 is configured to store planning information and/or planning associated information of the number
  • the receiving module 12 is configured to receive a planning information query message of the calling terminal number and/or the called terminal number sent by the call control server 2;
  • the querying module 13 is configured to query, according to the calling terminal number and/or the called terminal number, the planning information query message received by the receiving module 12, and the query storage module 11 obtains the corresponding calling terminal number and/or is The scheduling information of the terminal number is called; and/or the storage module 11 is queried according to the calling terminal number and/or the planning information of the called terminal number to obtain corresponding planning association information; and the sending module 14 is configured to control the call.
  • the server 2 sends the corresponding calling terminal number and/or the planned information of the called terminal number obtained by the query module 13, and/or the corresponding planning associated information obtained by the query module 13.
  • the number information storage server 1 further includes:
  • the update module 15 is configured to update the planning information of the number stored in the storage module 11 according to the routing update guide file.
  • the routing update guidance file mentioned here is a text file of LERG6. DAT, LERGINS. DAT, which is a special organization in North America that regularly publishes the latest data in LERG File mode.
  • Other routing update guidance files that can achieve the technical effects of the embodiments of the present invention are also within the scope of protection of the embodiments of the present invention.
  • the query module 13 in the number information storage server can query the storage module 11 to obtain the planning information of the calling terminal number and/or the called terminal number. After obtaining the planning information of the calling terminal number and/or the called terminal number, the query module 13 in the number information storage server may continue to query the storage module 11 according to the planning information to obtain the planning association information, and then the calling module sends the call to the calling module.
  • the control server 2 sends.
  • the number information storage server 1 may further include a judging module 16, which determines the call attribute according to the plan association information, thereby directly returning the call attribute of the call service corresponding to the call request message in the returned query result.
  • the number information storage server 1 may further include:
  • the determining module 16 is configured to determine, according to the planning information of the corresponding calling terminal number and/or the called terminal number obtained by the querying module 13 and the planning association information, the call service corresponding to the call request message
  • the call attribute returns the call attribute of the call service corresponding to the call request message directly in the returned query result.
  • the generating module 17 is configured to: when the called terminal number is a preset service number, generate a planning parameter of the called terminal number according to the planning information of the calling terminal number;
  • the planning parameter of the called terminal number is referred to the call control server 2.
  • the number information storage server 1 may be specifically a number information storage server, or a number information storage server pool composed of a plurality of number information storage servers.
  • the call control server 2 is configured to query the number information storage server 1 for the calling terminal number of the calling service and/or the planning information of the called terminal number, and determine the calling attribute of the calling service according to the planning information and/or the planning associated information.
  • the call control server 2 includes:
  • the receiving module 21 is configured to receive a call request message that is sent by the calling terminal and includes a calling terminal number and a called terminal number.
  • the first query module 22 is configured to query the number information storage server 2 for the planning information and/or planning association information of the calling terminal number and/or the called terminal number in the call request message received by the receiving module 21.
  • the determining module 23 is configured to determine call attributes of the call service corresponding to the call request message according to the calling terminal number and the planned information of the called terminal number queried by the first query module 22.
  • call control server 2 further includes:
  • the storage module 24 is configured to save the planning information of the calling terminal number when the calling terminal registers, or save the planning information of the calling terminal number and/or the called terminal number queried by the first query module 22.
  • the first query module 22 is further configured to query the storage module 24 for planning information of the calling terminal number and/or the called terminal number.
  • call control server 2 further includes:
  • the generating module 25 is configured to generate a planned domain name of the calling terminal number and the called terminal number according to the calling area number corresponding to the calling terminal number and the planned information of the called terminal number that is queried by the first query module 22;
  • the second query module 26 is configured to query whether the domain name system that saves the local call domain name set includes the calling terminal number generated by the generating module 25 and the planned domain name of the called terminal number.
  • the call control server 2 may be specifically a session control function entity and/or a service server in an IP multimedia system network; or a call control server in a softswitch network, such a change in the content of the reference is not The scope of protection of the embodiments of the present invention is affected.
  • the above modules may be distributed in one device or distributed in multiple devices.
  • the above modules can be combined into one module, or can be further split into multiple sub-modules.
  • the technical solution of the embodiment of the present invention has the following advantages, because the system design scheme for providing the number planning information query service for each call control server by using the number information storage server to store and manage the number planning information data is adopted, thereby Centralized storage and unified management of number planning information is achieved, which reduces the maintenance cost and saves storage space and hardware resources.
  • the following embodiments of the present invention take the communication control network in North America as an example for detailed technical solutions. It should be noted that this is only a preferred embodiment of the present invention, and other The network that meets the requirements of the implementation scenario of the technical solution also belongs to the protection scope of the embodiment of the present invention. Moreover, in a specific implementation scenario, the difference in noun title does not affect the scope of protection of the embodiments of the present invention.
  • the technical solution proposed by the embodiment of the present invention mainly uses the ENUM server to store and manage number planning information (LERG6 data), and provides a standard ENUM query interface for each call control server to achieve
  • the number planning information is stored centrally and unified for management purposes, wherein the number planning information specifically includes LATA information and RC information, and the relationship between LATA and RC is specifically shown in FIG. 3.
  • Each call control server can query the ENUM server for number planning information through the standard ENUM NAPTR.
  • the number of the calling and called terminals is input to the ENUM server through the standard ENUM query interface.
  • the number is returned. Number planning information for LATA, RC, etc.
  • the first six digits of the number, NPA-NXX can uniquely determine the LATA and RC information to which the number belongs. Therefore, the two numbers of the previous six digit numbers 612-201 and 207-698 in this embodiment are The example is explained.
  • the two NAPTR records on 612-201 and 207-698 on the ENUM server are as follows:
  • the six-digit number 612-201 is recorded by NAPTR and mapped to a Sip URI.
  • the LATA and RC information is added in the form of a parameter, wherein the LATA information is a three-digit identifier, that is, 628, the RC information is a longest ten-digit identification character, and the six-digit number is a number of 612-201.
  • the corresponding RC information is ten, which is TWINCITIES.
  • the call control server queries ENUM with the number of 612-201-XXXX, these parameters are used as the planning information of the number, and are returned to the call control server along with the query response message.
  • the number with the first six digits of 207-698 is recorded by NAPTR and mapped to a Sip URI.
  • the Sip URI adds LATA and RC information in the form of parameters.
  • the LATA information is a three-digit identifier. That is, 120, the RC information is the longest ten-digit identification character, the RC information corresponding to the number of the first six-digit number 207-698 is seven digits, and the RC information is BERWICK.
  • top-level domain name Top Level Domain In order not to be confused with other ENUM queries, you can define a separate top-level domain name Top Level Domain. For the convenience of description, the top-level domain name temporarily uses the existing e l64. arpa as an example.
  • Step S401 The calling terminal sends a call setup request to the call control server, where the call setup request includes the number information of the calling and called terminals.
  • Step S402 The call control server sends a query request message of the calling terminal number planning information to the ENUM server. That is, the call control server sends a NAPTR query message containing the E164 number 612-201-1234 of the calling user, requesting to query the planning information of the number.
  • the query process of the call control server to the ENUM server is implemented through a standard ENUM interface. Therefore, when the calling and called number is sent to the ENUM server, It is transmitted by translating the original E164 number into a DNS domain name conforming to the standard ENUM interface. For example, the E164 number 612-201-1234 will be mapped to 4. 3. 2. 1. 1. 0. 2. 2 1. 6. e l64. arpa's DNS domain name, where e l64. arpa is the top-level domain name, so that the ENUM server can identify the information.
  • step S402 is specifically as follows:
  • the call control server sends the DNS domain name information including " 4. 3. 2. 1. 1. 0. 2. 2. 1. 6. e l64. arpa" through the standard ENUM interface.
  • the query message requests the corresponding planning information.
  • Step S403 The ENUM server sends a query response message of the calling terminal number planning information to the call control server. That is, the ENUM server sends a NAPTR response message containing the planning information of the calling party number, and feeds back to the call control server the planning information of the calling party number, including the LATA information and the RC information.
  • Step S404 The call control server sends a query request message of the called terminal number planning information to the ENUM server. That is, the call control server sends a query message containing the DNS domain name information of " 1. 2. 3. 4. 8. 9. 6. 7. 0. 2. e l64. arpa" through the standard ENUM interface, requesting a query. Corresponding planning information.
  • Step S405 The ENUM server sends a query response message of the called terminal number planning information to the call control server. That is, the ENUM server sends a NAPTR response message containing the planning information of the called subscriber number, and feeds back to the call control server the planning information of the called subscriber number, including the LATA information and the RC information.
  • step S402 and step S403 complete the query flow of the planning information of the calling subscriber number
  • step S404 and step S405 complete the query flow of the planning information of the called subscriber number, but the calling subscriber number
  • the sequential changes between steps S402 and S403 and steps S404 and S405 do not affect the embodiment of the present invention. protected range.
  • Step S406 The call control server determines, according to the received planning information of the calling and called user numbers, a call attribute type of the call service corresponding to the primary called party.
  • the call attribute type (Cal l Type) of the call is InterLATA, that is, Communicate between different LATAs. If A calls a number of RC6 in LATA1, because the calling and called parties belong to LATA1, the call attribute type (Cal l Type) of this call is IntraLATA, that is, communication within the same LATA. And if A calls a number in RC1, because the calling party and the called party belong to one RC, the call attribute type (Cal Type) of this call is Local.
  • Step S407 The call control server sends a call setup message to the called user to establish a call service between the calling user and the called user.
  • the call control server obtains the LATA and RC information of the calling party and the called party through two NAPTR queries respectively, and further determines the call type of the current call in combination with the local judgment logic. Then, the purpose of determining the Cal l Type can be determined without saving a large amount of data locally.
  • Embodiment 3 of the present invention can be implemented in an IP Multimedia Subsystem (IMS) network, and the call control server is a Call Control Function (CSCF), and the CSCF can be
  • IMS IP Multimedia Subsystem
  • CSCF Call Control Function
  • the standard ENUM query interface is used to query the planning information of the calling and called users on the ENUM server, and then the Cal l Type o of the calling service is determined according to the planning information of the query.
  • the service server needs to be able to obtain the user's LATA and RC information through the ENUM query interface in some scenarios.
  • FIG. 5 a schematic diagram of a networking structure of a call control network according to the technical solution of the embodiment of the present invention in an IMS network is shown in FIG. 5.
  • the ENUM server can be deployed in a resource pool to achieve load sharing and disaster recovery.
  • the present invention specifically describes the foregoing method for determining call attributes in the CSCF under the IMS network by using the fourth embodiment.
  • the corresponding call flow for querying ENUM by the CSCF in the IMS is shown in FIG. 6.
  • the method includes the following steps:
  • Step S601 The terminal sends a call setup request to the P-CSCF (Proxy CSCF), where the call setup request includes the number information of the calling and called terminals.
  • P-CSCF Proxy CSCF
  • Step S602 The P-CSCF forwards the call setup request to the S-CSCF (Serving CSCF), where the call setup request includes the number information of the calling and called terminals.
  • S-CSCF Serving CSCF
  • Step S603 The S-CSCF sends a query request message of the calling terminal number planning information to the ENUM server.
  • the S-CSCF sends a query message containing the DNS domain name information of " 4. 3. 2. 1. 1. 0. 2. 2. 1. 6. e l64. arpa " through the standard ENUM interface, requesting the query corresponding Planning information.
  • Step S604 The ENUM server sends a query response message of the calling terminal number planning information to the S-CSCF.
  • the ENUM server sends a NAPTR response message containing the planning information of the calling party number, and feeds back to the S-CSCF the planning information of the calling party number, including the LATA information and the RC information.
  • Step S605 The S-CSCF sends a query request message of the called terminal number planning information to the ENUM server.
  • the S-CSCF sends a query message containing the DNS domain name information of " 1. 2. 3. 4. 8. 9. 6. 7. 0. 2. e l64. arpa " through the standard ENUM interface, requesting the query corresponding Planning information.
  • Step S606 The ENUM server sends a query response message of the called terminal number planning information to the S-CSCF.
  • the ENUM server sends a NAPTR response message containing the planning information of the called subscriber number, and feeds back the planning information of the called subscriber number to the S-CSCF, including the LATA information and the RC information.
  • Step S607 The S-CSCF determines, according to the received planning information of the calling and called user numbers, the call attribute type of the call service corresponding to the primary called party.
  • Step S608 The S-CSCF sends a call setup message to the AS to establish a call service between the calling user and the called user.
  • the call control server obtains the LATA and RC information of the calling party and the called by the two NAPTR queries respectively, and further determines the call type of the current call in combination with the local judgment logic. Then, the purpose of determining the Cal l Type can be determined without saving a large amount of data locally.
  • the calling side CSCF needs to be able to check the ENUM server for the primary and the called number respectively to obtain the LATA and RC information to which the calling and called numbers belong, and then combine with the local judgment logic to obtain Call l of this call
  • the CSCF needs to determine the Cal l Type before triggering to the AS.
  • the mode is carried to the AS.
  • the specific carrying mode may be to define a parameter in a format in the S ip message.
  • Step S701 The terminal sends a call setup request to the P-CSCF, where the call setup request includes the number of the calling and called terminals.
  • Step S702 The P-CSCF forwards the call setup request to the S-CSCF, where the call setup request includes number information of the calling and called terminals.
  • Step S703 The S-CSCF forwards the call setup request to the AS, where the call setup request includes the number information of the calling and called terminals.
  • Step S704 The AS sends a query request message of the calling terminal number planning information to the ENUM server.
  • the AS sends a query message containing the DNS domain name information of " 4. 3. 2. 1. 1. 0. 2. 2. 1. 6. e l64. arpa" through the standard ENUM interface, and requests the corresponding plan. information.
  • Step S705 The ENUM server sends a query response message of the calling terminal number planning information to the AS.
  • the ENUM server sends a NAPTR response message containing the planning information of the calling party number, and feeds back to the AS the planning information of the calling party number, including the LATA information and the RC information.
  • Step S706 The AS sends a query request message of the called terminal number planning information to the ENUM server.
  • Step S707 The ENUM server sends a query response message of the called terminal number planning information to the AS.
  • the ENUM server sends a NAPTR response message containing the planning information of the called subscriber number, and feeds back to the AS the planning information of the called subscriber number, including the LATA information and the RC information.
  • Step S708 The AS determines, according to the received planning information of the calling and called user numbers, the call attribute type of the calling service corresponding to the calling party and the called party.
  • Step S709 The AS sends a call setup message to the S-CSCF, and the S-CSCF performs further processing to establish a call service between the calling user and the called user.
  • the AS needs to query the ENUM server as long as there is a service that affects the Cal l Type.
  • both the CSCF and the AS need to query the ENUM server and perform the Cal l Type judgment to ensure the accuracy of the data.
  • the technical solution flow is described in the foregoing embodiment of the present invention. The method flow is similar, and also belongs to the protection scope of the embodiment of the present invention, and details are not described herein again.
  • Embodiment 6 of the present invention specifically describes a method for storing plan information in a number information storage server, such as an HSS/HLR, by a call control server (S-CSCF/I-CSCF/AS) or a number information storage server (HSS/HLR). ) Determine the call attribute (CALL TYPE). The flow of the call attribute judgment will be specifically described below with reference to FIG.
  • Step 801 The S-CSCF receives the user registration message, and sends a SAR (Server- Assignment-Request server allocation request) to download the user subscription data.
  • SAR Server- Assignment-Request server allocation request
  • the S-CSCF may first use the NPA-NXX of the calling number to query the HSS to obtain the planning information of the calling user.
  • Step 802 After receiving the user subscription data sent by the S-CSCF, the HSS downloads the planning information (RC, LATA) to which the user belongs in the group AVP format in the SAA (Server-Assition-Answer Server Assignment Response);
  • Step 803 After receiving the planning information sent by the HSS, the S-CSCF saves the planning information to the local data.
  • Step 804 The S-CSCF returns a registration 200 response.
  • Step 805 After receiving the invite request, the S-CSCF takes the called number from the Request-URI and normalizes it.
  • the NPA-NXX and the NPA-NXX of the called number query the local configuration. If the call attribute can be obtained, the called plan information does not need to be queried. If the call attribute cannot be obtained, the NPA-NXX in the called number is used to form the TEL format. PSI, then send SAR to HSS obtain planning information;
  • Step 807 After receiving the SAR request, the HSS obtains the corresponding PSI planning information according to the PSI, and returns the planning information to the S-CSCF through the group AVP format.
  • Step 808 The S-CSCF performs CALL TYPE judgment according to the planning information (RC, LATA data) of the calling party and the locally saved planning association information (LOCAL RC) data, obtains the call attribute, and fills in the request trunk group parameter carrying, S - CSCF saves NPA-NXX in the calling number, NPA-NXX in the called number, and the corresponding CALL TYPE locally.
  • Step 809 After receiving the initial Invite request, the S-CSCF takes the NPA-NXX from the calling and called number, and queries the local configuration to obtain Call attribute
  • Step 810 The S-CSCF carries the call attribute in the sending out request.
  • the S-CSCF since the S-CSCF has already stored the call attribute corresponding to the call between the specific calling and called numbers, it is not necessary to query the HSS for this initial call request, but to obtain the call attribute directly from the local.
  • FIG. 9 is a flowchart of a call attribute determination in Embodiment 7 of the present invention. As shown in FIG. 9, the call attribute determination process includes:
  • Step 901 After receiving the invite request, the I-CSCF takes the called number from the request-uri and normalizes it; Step 902: The I-CSCF check request does not carry the CALL TYPE information, and first uses the NPA in the calling number. -NXX and the NPA-NXX of the called number are queried for local configuration. After the CALL TYPE is not obtained, the PIR is sent using the NPA-NXX in the calling number to form the LIR (Locating Information-Request). User data;
  • Step 903 After receiving the LIR request, the HSS obtains the corresponding PSI planning information according to the PSI, and returns the LIA (Location-Info-Answer local information response) to the I-CSCF through the group AVP format.
  • LIA Lication-Info-Answer local information response
  • Step 904 After receiving the LIA, the I-CSCF obtains the calling plan information and saves the local, and uses the NPA in the called number, and the NXX forms the PSI in the TEL format to send the LIR to download the user data.
  • Step 905 After receiving the LIR request, the HSS obtains the corresponding PSI planning information according to the PSI.
  • the AVP format returns LIA to the I-CSCF
  • Step 906 After receiving the LIA, the I-CSCF obtains the calling plan information and saves the local. According to the obtained planning information (RC, LATA data) and planning association information (LOCAL RC) data of the calling party and the called, the call attribute is judged, the call attribute is obtained, and the message is carried in the request, and the I-CSCF will be the NPA in the calling number. -NXX, NPA-NXX in the called number, corresponding CALL TYPE is saved locally;
  • RC planning information
  • LATA data LATA data
  • LOCAL RC planning association information
  • Step 907 After receiving the initial Invite request, the I-CSCF takes the NPA-NXX from the calling and called number, and queries the local configuration to obtain the call attribute.
  • Step 908 The I-CSCF carries the call attribute in the send out request.
  • the calling and called planning information may also be downloaded together from the HSS.
  • the case where the AS (Application Server) saves the location association information (LOCAL RC) locally is similar to the above-described Embodiments VI and 7.
  • AS uses PSI to download LATA, RC data through SH interface.
  • For the third-party registration process of the AS that supports the third-party registrant and provides the service download the user-specific planning information (RC, LATA) from the HSS/HLR through the SH interface on the HSS/HLR.
  • the subsequent process is the same as the S-CSCF.
  • the process of obtaining the CALL TYPE of the I-CSCF is similar, and will not be described here.
  • the calling attribute determining process described in Embodiments 6 and 7 of the present invention wherein the LOCAL RC data is stored locally, and the S-CSCF/I-CSCF is based on the planning information (RC, LATA) of the calling and called parties acquired from the HSS and locally saved.
  • the LOCAL RC data is used to determine the call attribute (CALL TYPE) of the call.
  • the present invention can also be implemented as: LATA, RC, LOCAL, RC data are stored in the HSS, I-CSCF/S-CSCF /AS performs the call attribute logic judgment, which will be described below.
  • the process of the call attribute logic determination of the I-CSCF/S-CSCF/AS in the eighth embodiment of the present invention includes: Steps 1001-1005: After receiving the invite request, interact with the HSS to obtain the primary called user.
  • the process can refer to the related description of the previous embodiment, and details are not described herein;
  • Step 1006 The call control server (I-CSCF/S-CSCF) or the AS sends the user association relationship request message to the HSS, where the message carries the association type flag (such as location association).
  • the association type flag such as location association
  • the user planning association information (Local RC) is stored on the HSS/HLR, and the HSS sends a user association request message according to the call control server (I-CSCF/S-CSCF) or the AS, and queries the user association information ( Local RC);
  • Step 1007 After receiving the location association response returned by the HSS, the call control server (I-CSCF/S-CSCF) or the AS determines the call attribute of the call according to the association result, that is, the planning association information, specifically:
  • association result is none or empty, the local call attribute is not changed. If the association result is associated, the local call attribute is replaced with the associated specific information;
  • Step 1008 The call control server (I-CSCF/S-CSCF) or the AS carries the call attribute (CALL TYPE) in the outgoing request.
  • the embodiment of the present invention differs in that all planning information and planning related information are stored in a centralized manner.
  • data redundancy is reduced, data reliability is improved, and the call logic is still determined by the call control server (I-CSCF/S-CSCF) or AS.
  • the HSS/HLR is only used for data storage or Management, does not involve business logic.
  • the present invention can also be implemented as: planning information, Local RC information is saved on the HSS/HLR, and the call attribute logic is judged by the HSS/HLR. In this way, the call attribute information can be obtained by using the interaction once in the next call.
  • the effectiveness of the entire call control network The following is a detailed description of Embodiment 9 of the present invention and FIG.
  • the flow of the call attribute logic determination method by the HSS/HLR includes:
  • Step 1101 After receiving the initial Invite request, the I-CSCF/S-CSCF/AS checks that the call attribute information is not carried, and uses the NPANXX in the calling and called number to construct the primary in the URR (User-Relation-Request User Association Request).
  • the called PSI is filled in with the user identification information in the association management flag;
  • Step 1102 The I-CSCF/S-CSCF/AS sends the URR to the HSS;
  • Step 1103 The HSS obtains planning information and planning association information of the calling party and the called party according to the corresponding calling data of the calling and called PSI, and performs call attribute judgment according to the planning information of the calling party and the planning related information, obtains call attribute information, and fills in the call attribute information. Returned to the I-CSCF/S-CSCF/AS in the associated specific information in the URA (User-Relation-Answer User Association Response) response;
  • URA User-Relation-Answer User Association Response
  • Step 1104 The I-CSCF/S-CSCF/AS is associated according to the association result, and the call attribute is taken out from the associated specific information, and is filled in the sent invite request.
  • the solution provided by the embodiment of the present invention stores the LATA and RC data, and/or the Local RC on the HSS/HLR or ENUM server through the centralized data storage mode of the HSS/HLR or ENUM server under the IMS/NGN architecture to implement user data.
  • Centralized unified management and then the call control server or HSS/HLR judges the call attributes based on data such as LATA and RC, and/or Local RC, which greatly saves the memory of the call control device/switch device and reduces the judgment call attribute.
  • the number of interactions in the process improves the efficiency and reliability of data storage.
  • the embodiment of the present invention describes the implementation process of the technical solution in the IMS network. It is further pointed out that the technical solution proposed by the embodiment of the present invention can also be implemented in a softswitch network, that is, the call control server of the softswitch is responsible for Go to the ENUM server, or the upgraded HLR, or the HSS/HLR, and then determine the call type of the call based on the query result. Since the query process is similar to the method flow described in the foregoing embodiment of the present invention, the description will not be repeated here.
  • the technical solution of the embodiment of the present invention has the following advantages, because the number planning information data is stored and managed by using a number information storage server (such as an ENUM server, or an HSS/HLR), and number planning information is provided for each call control server.
  • the solution of the service is queried, thereby achieving centralized storage and unified management of the number planning information, thereby achieving the effects of reducing maintenance costs and saving storage space and hardware resources.
  • the call attribute determination method, device and system provided by the embodiment of the present invention can conveniently determine the call attribute of the terminal.
  • the present invention can be implemented by hardware, or can be implemented by means of software plus necessary general hardware platform, and the technical solution of the present invention. It may be embodied in the form of a software product, which may be stored in a computer readable storage medium (which may be a CD-ROM, a USB flash drive, a mobile hard disk, etc.), including a number of instructions for making a computer device (may be A personal computer, server, or network device, etc., performs the methods described in various embodiments of the present invention.
  • a computer readable storage medium which may be a CD-ROM, a USB flash drive, a mobile hard disk, etc.
  • a computer device may be A personal computer, server, or network device, etc., performs the methods described in various embodiments of the present invention.

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Description

一种呼叫属性判断方法、 设备和系统
本申请要求了 2008年 10月 24日提交的、 申请号为 200810170764. X、 发明名称为 "一种呼叫 属性判断方法、 设备和系统" 以及 2009年 6月 30日提交的、 申请号为 200910150738. 5、 发明名称 为 "一种呼叫属性判断方法、 设备和系统" 的中国申请的优先权, 其全部内容通过引用结合在本申 请中。 技术领域 本发明涉及通信技术领域, 特别是涉及一种呼叫属性判断方法、 设备和系统。 发明背景 联邦通信委员会 (Federal Communications Commission, FCC) 要求北美负责语音呼叫的交换 机需要判断呼叫属性 (Call Type ) , 比如: Local (本地), Local Toll (本地收费), Long Distance (长途) , International (国际)等, 其中, 北美负责语音呼叫的交换机包括公共交换电话网络交换 机 (Public Switched Telephone Network Switch, PSTN Switch) 和基于 IP语音技术的电话网络交 换机 (Voice over Internet Protocol Switch, VOIP Switch) 两种类型。
由于北美电话号码规划 (North America Number Plan) 的特点, 其涉及到相当大的数据量 (几 十万行记录) , 从而导致需要占用交换机中的大量内存和大量检索过程。
为了能够判断出 Call Type, 主被叫用户号码的规划信息至关重要, 即主被叫号码所属的本地接 入和交换区域 (Local Access and Transport Area, LATA)和费用中心 (Rate Center, RC) 信息。 FCC将美国(包括加拿大, 百慕大等地区)划分为数十个 LATA,而每个 LATA下面又管辖数十上百个 RC, 每个号码都属于一个特定的 RC。
因此,交换机为了能够准确判断出 Call Type,它必须根据主被叫号码査询各自所属的 LATA和 RC, 再结合一定的判断逻辑得到该次呼叫的 Call Type。 根据 FCC规定, 号码的前六位, 即北美号码的 NPA-NXX是可以唯一确定它下面的号码所属的 LATA, RC的, 而北美 NPA-NXX的个数也相应的达到几十 万规模。
另外, 由于号码及其所属的 LATA, RC信息并不是一成不变的, 北美有专门的组织会定期以本地 交换路由指导文件 (Local Exchange Routing Guide, File, LERG File ) 方式发布最新的数据, 通 常是 LERG6. DAT, LERGINS. DAT的文本文件。
相应的, 各个交换机都需要导入该数据, 并更新到本地数据中, 维护成本高。
以上只是举例, 当然并不限于北美, 相似应用场景同样可能存在以上问题。 发明内容 本发明实施例提供了一种呼叫属性判断方法、设备和系统。通过用号码信息存储服务器对号码 规划信息数据进行存储和管理, 降低了维护成本, 通过应用该号码信息存储服务器提出的呼叫属性 判断方法、 设备和系统, 实现了对终端呼叫属性的判断。
本发明的目的是通过以下技术方案实现的: 一种呼叫属性判断方法, 包括以下步骤:
接收主叫终端发送的包含主叫终端号码和被叫终端号码的呼叫请求消息;
根据所述呼叫请求消息,向号码信息存储服务器査询所述主叫终端号码和 /或所述被叫终端号码 的规划信息;
根据所述主叫终端号码和所述被叫终端号码的规划信息, 判断所述呼叫请求消息所对应的呼叫 业务的呼叫属性。
一种呼叫控制服务器, 包括:
接收模块, 用于接收主叫终端发送的包含主叫终端号码和被叫终端号码的呼叫请求消息; 第一査询模块, 用于向号码信息存储服务器査询所述接收模块所接收呼叫请求消息中的主叫终 端号码和 /或所述被叫终端号码的规划信息和 /或规划关联信息;
判断模块, 用于根据所述第一査询模块所査询的所述主叫终端号码和所述被叫终端号码的规划 信息和 /或规划关联信息, 判断所述呼叫请求消息所对应呼叫业务的呼叫属性。
一种号码信息存储服务器, 包括:
存储模块, 用于存储号码的规划信息和 /或规划关联信息;
接收模块, 用于接收主叫终端号码和 /或被叫终端号码的规划信息査询消息;
査询模块,用于根据所述接收模块所接收的主叫终端号码和 /或被叫终端号码的规划信息査询消 息, 査询所述存储模块, 获得相应的主叫终端号码和 /或被叫终端号码的规划信息; 和 /或根据主叫 终端号码和 /或被叫终端号码的规划信息, 査询所述存储模块, 获得相应的规划关联信息;
发送模块, 用于发送所述査询模块获得的相应的主叫终端号码和 /或被叫终端号码的规划信息; 和 /或所述査询模块获得的相应的规划关联信息。
一种呼叫控制网络, 包括:
号码信息存储服务器, 用于存储号码的规划信息和 /或规划关联信息;
呼叫控制服务器,用于向所述号码信息存储服务器査询呼叫业务的主叫终端号码和 /或被叫终端 号码的规划信息, 并根据所述规划信息和 /或规划关联信息判断所述呼叫业务的呼叫属性。
本发明实施例的技术方案具有以下优点, 因为采用了号码信息存储服务器对号码规划信息和 / 或规划关系信息进行存储和管理, 则避免了在每个呼叫控制服务器上存储相关信息数据, 实现对终 端呼叫属性的判断时, 降低了维护成本。 附图简要说明 图 1为本发明实施例一中一种呼叫属性判断方法的流程示意图;
图 2为本发明实施例二中一种呼叫控制网络的结构示意图;
图 3为本发明实施例中 LATA和 RC的关系示意图;
图 4为本发明实施例三中一种呼叫属性判断方法的流程示意图;
图 5为本发明实施例中在 IMS网络中进行呼叫属性判断的呼叫控制网络的组网结构示意图; 图 6为本发明实施例四中一种由 S-CSCF进行呼叫属性判断方法的流程示意图;
图 7为本发明实施例五中一种由 AS进行呼叫属性判断方法的流程示意图;
图 8为本发明实施例六中一种呼叫属性判断方法的流程示意图;
图 9为本发明实施例七中一种呼叫属性判断方法的流程示意图;
图 10为本发明实施例八中 I-CSCF/S-CSCF/AS进行呼叫属性判断方法的流程示意图; 图 11为本发明实施例九中 HSS/HLR进行呼叫属性逻辑判断方法的流程示意图。
实施本发明的方式
下面将参考附图详细说明本发明实施例。 发明人发现现有技术中每个呼叫控制设备 /交换机都需要导入和维护号码规划信息数据,一旦号 码规划信息数据需要刷新, 现网上的每个呼叫控制设备 /交换机都需要更新号码规划信息数据, 维护 成本高, 也增大了因数据更新过程中不同呼叫控制设备 /交换机上数据不同步而造成问题的可能性; 而且号码规划信息数据本身的数据量较大, 通常有几十万条数据, 在每个呼叫控制设备 /交换机上都 进行存储, 浪费了存储空间, 也提高了每个呼叫控制设备 /交换机的硬件开销。
针对现有技术中存在的问题, 本发明实施例在现有的通信网络系统中增设了一个号码信息 存储服务器, 对号码规划信息和 /或规划关联信息进行集中存储和统一管理, 从而, 达到了降低硬 件和维护成本的效果。 进一步的, 通过应用该号码信息存储服务器, 本发明实施例提出了一种呼叫 属性判断方法、 设备和系统, 实现了对终端呼叫属性的判断。
下面将结合本发明实施例的附图, 对本发明实施例描述的技术方案进行清楚、 完整地描述, 显 然, 本文所描述的实施例仅仅是本发明的一部分实施例, 而不是全部的实施例。基于本发明实施例, 本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例, 都属于本发明保护的 范围。 本发明实施例一提供了一种呼叫属性判断方法, 具体流程示意图如图 1所示, 包括以下步骤: 步骤 S101、 接收主叫终端发送的包含主叫终端号码和被叫终端号码的呼叫请求消息。
步骤 S102、 根据该呼叫请求消息, 向号码信息存储服务器査询主叫终端号码和 /或被叫终端号 码的规划信息。
具体可以包括以下步骤:
通过査询接口, 向号码信息存储服务器发送包含主叫终端号码的査询请求消息, 接收号码信息 査询服务器返回的包含主叫终端号码规划信息的査询响应消息; 和 /或
通过査询接口, 向号码信息存储服务器发送包含被叫终端号码的査询请求消息, 接收号码信息 査询服务器返回的包含被叫终端号码规划信息的査询响应消息。
需要进一步指出的是, 在本步骤中, 主叫终端号码和被叫终端号码的规划信息通常是通过两次 査询来实现的, 但是在具体的应用环境中, 为了进一步节约网络资源, 减少交互的信息数量, 上述 的査询步骤可以按照以下两种情况进行简化, 具体说明如下:
情况一、 当主叫终端注册时, 呼叫控制服务器直接保存主叫终端号码的规划信息。
在这种情况下, 本步骤中的査询过程将相应的变更为:
获取本地所保存的主叫终端号码的规划信息;
向号码信息存储服务器査询获取被叫终端号码的规划信息。
其中, 在本地获取主叫终端号码的规划信息即直接在呼叫控制服务器上进行信息提取, 无需再 向号码信息存储服务器进行査询。
情况二、在步骤 S102中对主叫终端号码和被叫终端号码的规划信息的査询完成之后, 直接保存 主叫终端号码和被叫终端号码的规划信息, 在这种情况下, 后续的呼叫建立过程中, 呼叫属性判断 流程中的规划信息的査询步骤也将相应发生以下几种情况的变更:
当后续接收到主叫终端发送的对其他被叫终端的呼叫请求消息时, 获取本地所保存的主叫终端 号码的规划信息, 向号码信息存储服务器査询其他被叫终端号码的规划信息; 或,
当后续接收到其他主叫终端发送的对被叫终端的呼叫请求消息时, 获取本地所保存的被叫终端 号码的规划信息, 向号码信息存储服务器査询其他主叫终端号码的规划信息; 或,
当后续接收到主叫终端发送的对被叫终端的呼叫请求消息时, 获取本地所保存的主叫终端和被 叫终端号码的规划信息。
上述的几种情况的变更方案主要是考虑在本步骤的基础方案中, 一个普通的呼叫会涉及至少两 次规划信息査询, 效率上会有一定影响。 因此, 本发明实施例提出了进一步的改进方案, 一方面引 入査询记录的缓存, 减少规划信息的査询次数, 另一方面则考虑在注册时, 就将注册用户的相关信 息从号码信息存储服务器上査询出来并保存, 如果主被叫终端都是在一个呼叫控制服务器上时, 该 主被叫终端间的呼叫就可以不再去査询号码信息存储服务器了。
步骤 S 103、 根据主叫终端号码和被叫终端号码的规划信息, 判断呼叫请求消息所对应呼叫业务 的呼叫属性。
需要进一步指出的是, 在上述实施例中, 呼叫控制服务器是根据主叫终端号码和被叫终端号码 的规划信息, 判断呼叫请求消息所对应呼叫业务的呼叫属性的。 在本发明另一实施例中, 也可以根 据主叫终端号码、 被叫终端号码的规划信息以及规划关联信息 (LOCAL RC), 来判断呼叫请求消息所 对应呼叫业务的呼叫属性。 所述规划关联信息可以保存在本地, 也可以保存在号码信息存储服务器 中。 当规划关联信息保存在号码信息存储服务器中时, 可以向号码信息存储服务器査询所述规划关 联信息。
具体可以包括以下几种情况:
情况一、 根据所述主叫终端号码和所述被叫终端号码的规划信息, 向所述号码信息存储服务器 发送用户规划关联请求, 并根据所述号码信息存储服务器发送的用户规划关联响应, 判断所述呼叫 请求消息所对应的呼叫业务的呼叫属性。
此处具体是指: 所述关联规划信息保存在号码信息存储服务器, 呼叫控制服务器根据所述主叫 终端号码和所述被叫终端号码的规划信息向所述号码信息存储服务器发送用户规划关联请求, 所述 号码信息存储服务器査询所述关联规划信息给出用户规划关联响应; 所述呼叫控制服务器根据所述 用户规划关联响应判断所述呼叫请求消息所对应的呼叫业务的呼叫属性。
情况二、 向所述号码信息存储服务器发送包含主叫终端号码和被叫终端号码的呼叫请求消息, 并接收所述号码信息存储服务器发送的所述呼叫请求消息所对应的呼叫业务的呼叫属性。
此处具体是指: 所述呼叫控制服务器向所述所述号码信息存储服务器发送包含主叫终端号码和 被叫终端号码的呼叫请求消息。根据呼叫请求消息, 号码信息存储服务器査询所述主叫终端号码和 / 或所述被叫终端号码的规划信息。号码信息存储服务器获得主叫终端号码和 /或所述被叫终端号码的 规划信息后, 可以继续根据规划信息得到规划关联信息, 根据规划关联信息, 号码信息存储服务器 可以判断出呼叫属性,从而在返回査询结果中直接返回呼叫请求消息所对应的呼叫业务的呼叫属性。
在具体的应用环境中, 为了进一步节约网络资源, 减少交互的信息数量, 上述的査询步骤可以 简化, 具体说明如下:
情况三: 对主叫终端号码、 被叫终端号码的规划信息以及规划关联信息的査询完成之后, 直接 保存主叫终端号码、 被叫终端号码的规划信息以及规划关联信息, 在这种情况下, 后续的呼叫建立 过程中, 主叫终端号码、 被叫终端号码的规划信息以及规划关联信息的査询就可以简化。 比如可以 引入査询记录的缓存, 减少规划信息和规划关联信息的査询次数; 也可以考虑在注册时, 就将注册 用户的相关信息从号码信息存储服务器上査询出来并保存在呼叫控制服务器, 如果主被叫终端都是 在一个呼叫控制服务器上时, 该主被叫终端间的呼叫就可以不再去査询号码信息存储服务器了。
需要进一步指出的是, 当步骤 S103完成之后, 本方法还包括后续的更新流程, 具体为: 当主叫终端号码和 /或被叫终端号码发生更新时,呼叫控制服务器向号码信息存储服务器査询更 新后的主叫终端号码和 /或被叫终端号码对应的规划信息和 /或规划关联信息;
根据更新后的主叫终端号码、被叫终端号码对应的规划信息和 /或规划关联信息, 呼叫控制服务 器判断呼叫请求消息所对应呼叫业务的呼叫属性。
需要说明的是, 在本实施例中所提到的号码信息存储服务器可以是一个号码信息存储服务器, 也可以是由多个号码信息存储服务器组成的号码信息存储服务器池, 具体指代内容的变化并不影响 本发明的保护范围, 这一点在全文中都是一致的, 后文不再重复叙述。 进一步的, 根据具体的应用场景需要, 本发明实施例所提出的上述技术方案还可以进一步的调 整为如下的两种改进方案:
改进方案一: 在号码信息存储服务器中为特殊的业务号码 (比如北美的 Ni l业务) 配置其所对 应的规划参数比如路由号码。
其中, Ni l是北美特殊号码的一个通称, 即 211, 311 , 411 , 511 , 611 , 711 , 811 , 911, 在北 美这些号码都有特殊意义, 这仅为本发明实施例中为了方便说明而选取的一种示例, 对其具体内容 本发明实施例不再另行详述。
当被叫终端号码为预设的服务号码时, 呼叫控制服务器向号码信息存储服务器査询该服务号码 所对应的规划参数, 査询过程中, 需要向号码信息存储服务器发送的信息包含主叫号码, 因为这类 业务往往是跟主叫号码所处的位置相关。
以北美通信控制网络为例, 对改进方案一的具体实施过程说明如下:
将 LATA和 RC信息集中存储到 E164号码映射 (E164 Telephone Number Mapping, ENUM) 服务 器上的同时, 以同样的方式将各号码对应的 Nil等特殊服务号码也集中存储在 ENUM服务器中。
需要说明的是, 在北美通信控制网络中, ENUM服务器即为在本发明前述实施例中所提到的号码 信息存储服务器, 具体名称的改变并不影响本发明实施例的保护范围。 比如, 以社区服务号码 211为例, 当一个用户作为主叫用户拨打 211时, 在北美, 网络侧需要 将 211翻译成一个规划参数, 即一个可路由的 10位北美号码规则 (North America Numbering Plan, NANP) 号码, 而翻译的依据是主叫用户号码所属的 LATA和 RC信息, 在最理想的情况下, 所翻译的 10位 NANP号码所属的 RC区域与主叫用户号码所属的 RC区域应该是一致的, 但这仅是本发明示例 中最理想的情况, 是否一致并不对本发明实施例的保护范围产生影响。 进一步的, 将该 10位 NMP 号码以参数的形式配置到用户主叫号码对应的名称权威指针 (Naming Authority Pointer, NAPTR) 记录中, 继而实现将该 10位 NANP号码随 ENUM响应一并返回给呼叫控制服务器, 从而实现在主叫用 户所在地或者就近实现特殊服务业务的目的。
改进方案二: 生成主叫终端号码和被叫终端号码的规划域名, 以实现呼叫属性的进一步判断。 具体的技术方案说明如下:
根据主叫终端号码和被叫终端号码的规划信息所对应的规划区域名, 生成主叫终端号码和被叫 终端号码的规划域名;
査询保存本地呼叫域名集合的域名系统中是否包括主叫终端号码和被叫终端号码的规划域名; 当域名系统中包含规划域名时, 则判定主叫终端号码和被叫终端号码位于同一本地呼叫区域, 并接收域名系统生成的本地呼叫类型参数; 当域名系统中未包含规划域名时, 则判定主叫终端号码 和被叫终端号码位于不同的本地呼叫区域。
同样以北美通信控制网络为例, 这种情况的具体实施方案为:
首先, 在一个域名系统 (Domain Name System, DNS ) 中, 将相邻的 RC以关联域名的形式进行 存储, 例如, RC1分别与 RC2和 RC3相邻, 则在 DNS中存储 "RCL RC2 "和 "RCL RC3 "两个域名, 其他相邻的 RC也可以依此类推。
呼叫控制服务器在判断呼叫的呼叫属性时,除了 LERG发布的 LATA和 RC信息外, Local Calling Area信息也是一个重要信息, 即前文所提到的本地呼叫区域, 其作用是帮助呼叫控制服务器进一步 判断出 Local或 Local Toll类型的呼叫, 但是 Local Calling Area信息并不随 LERG数据发布。 结 合本实施例的技术思想, 可以将主被叫用户所属的 RC Name构造成域名的形式, 如 "RCL RC2 "然后 査询存储有此类关联域名的 DNS的 NAPTR记录。
如果査询不到记录, 则表示主被叫用户所属的 RC不在一个 Local Calling Area里, 即主被叫 用户之间的呼叫属性不是 Local ;如果査询到相应的记录,则表示主被叫所属的 RC处于同一个 Local Calling Area, 即主被叫用户之间的呼叫属性是 Local。
査询完成后, DNS 以参数的形式向呼叫控制服务器返回主被叫用户之间的呼叫属性是 Local还 是 Local Toll的信息。
需要进一步指出的是, 改进方案二中所提出的关联域名的技术方案仅是本发明的一种优选实施 例, 其他可以达到相同的技术效果的处理方法, 比如服务资源记录 SRV等, 也同样属于本发明实施 例的保护范围。
本发明实施例的技术方案具有以下优点, 因为采用了通过用号码信息存储服务器对号码规划信 息数据进行存储和管理, 为各呼叫控制服务器提供号码规划信息的査询服务的方案, 从而, 实现了 对号码规划信息的集中存储和统一管理, 达到了降低维护成本, 节约存储空间和硬件资源的效果。 对应上述的方法, 本发明通过实施例二提供了一种呼叫控制网络, 结构示意图如图 2所示, 包 括号码信息存储服务器 1和呼叫控制服务器 2:
号码信息存储服务器 1, 用于存储号码的规划信息和 /或规划关联信息, 并可以根据路由更新信 息更新号码的规划信息, 具体包括:
存储模块 11 , 用于存储号码的规划信息和 /或规划关联信息;
接收模块 12, 用于接收呼叫控制服务器 2发送的主叫终端号码和 /或被叫终端号码的规划信息 査询消息;
査询模块 13, 用于根据所述接收模块 12所接收的主叫终端号码和 /或被叫终端号码的规划信息 査询消息, 査询存储模块 11获得相应的主叫终端号码和 /或被叫终端号码的规划信息; 和 /或根据主 叫终端号码和 /或被叫终端号码的规划信息, 査询所述存储模块 11, 获得相应的规划关联信息; 发送模块 14, 用于向呼叫控制服务器 2发送査询模块 13获得的相应的主叫终端号码和 /或被叫 终端号码的规划信息, 和 /或査询模块 13获得的相应的规划关联信息。
进一步的, 号码信息存储服务器 1还包括:
更新模块 15, 用于根据路由更新指导文件, 更新所述存储模块 11中所存储的号码的规划信息。 其中, 以北美通信控制网络为例, 这里所提到的路由更新指导文件即为北美有专门的组织定期 以 LERG File方式发布最新的数据, 通常是 LERG6. DAT, LERGINS. DAT的文本文件。 其他可以达到本 发明实施例技术效果的路由更新指导文件也同样属于本发明实施例的保护范围。
号码信息存储服务器中的査询模块 13可以査询存储模块 11获得主叫终端号码和 /或所述被叫终 端号码的规划信息。 号码信息存储服务器中的査询模块 13获得主叫终端号码和 /或所述被叫终端号 码的规划信息后, 可以继续根据规划信息査询存储模块 11得到规划关联信息, 然后由发送模块向呼 叫控制服务器 2发送。 进一步地, 号码信息存储服务器 1还可以包括判断模块 16, 根据规划关联信息, 判断出呼叫属 性, 从而在返回査询结果中直接返回呼叫请求消息所对应的呼叫业务的呼叫属性。 所述号码信息存 储服务器 1还可以包括:
判断模块 16, 用于根据所述査询模块 13获得的相应的主叫终端号码和 /或被叫终端号码的规划 信息以及所述规划关联信息, 判断所述呼叫请求消息所对应的呼叫业务的呼叫属性, 从而在返回査 询结果中直接返回呼叫请求消息所对应的呼叫业务的呼叫属性。
生成模块 17, 用于当所述被叫终端号码为预设的服务号码时, 根据所述主叫终端号码的规划信 息, 生成所述被叫终端号码的规划参数; 所述发送模块 14发送所述被叫终端号码的规划参数给呼叫 控制服务器 2。
值得说明的是, 号码信息存储服务器 1可具体为一个号码信息存储服务器, 或多个号码信息存 储服务器组成的号码信息存储服务器池。
呼叫控制服务器 2, 用于向号码信息存储服务器 1査询呼叫业务的主叫终端号码和 /或被叫终端 号码的规划信息, 并根据规划信息和 /或规划关联信息判断呼叫业务的呼叫属性。该呼叫控制服务器 2包括:
接收模块 21, 用于接收主叫终端发送的包含主叫终端号码和被叫终端号码的呼叫请求消息。 第一査询模块 22, 用于向号码信息存储服务器 2査询接收模块 21所接收呼叫请求消息中的主 叫终端号码和 /或被叫终端号码的规划信息和 /或规划关联信息。
判断模块 23, 用于根据第一査询模块 22所査询的主叫终端号码和被叫终端号码的规划信息和 / 或规划关联信息, 判断所述呼叫请求消息所对应呼叫业务的呼叫属性。
进一步的, 呼叫控制服务器 2还包括:
存储模块 24, 用于当主叫终端注册时, 保存主叫终端号码的规划信息, 或, 保存第一査询模块 22所査询的主叫终端号码和 /或被叫终端号码的规划信息。
相应的,第一査询模块 22还用于向存储模块 24査询主叫终端号码和 /或被叫终端号码的规划信 息
再进一步的, 呼叫控制服务器 2还包括:
生成模块 25, 用于根据第一査询模块 22所査询的主叫终端号码和被叫终端号码的规划信息所 对应的规划区域名, 生成主叫终端号码和被叫终端号码的规划域名;
第二査询模块 26, 用于査询保存本地呼叫域名集合的域名系统中是否包括生成模块 25生成的 主叫终端号码和被叫终端号码的规划域名。 在具体的应用场景中,呼叫控制服务器 2可以具体为 IP多媒体系统网络中的会话控制功能实体 和 /或业务服务器; 或, 软交换网络中的呼叫控制服务器, 这样的指代内容的变化并不影响本发明实 施例的保护范围。
上述模块可以分布于一个装置, 也可以分布于多个装置。上述模块可以合并为一个模块, 也可 以进一步拆分成多个子模块。
本发明实施例的技术方案具有以下优点, 因为采用了通过用号码信息存储服务器对号码规划信 息数据进行存储和管理, 为各呼叫控制服务器提供号码规划信息的査询服务的系统设计方案, 从而, 实现了对号码规划信息的集中存储和统一管理, 达到了降低维护成本, 节约存储空间和硬件资源的 效果。 下面, 对应着上述实施例所提出的技术方案, 本发明的后续实施例以北美的通信控制网络 为例进行详细的技术方案说明, 需要指出的是, 这仅是本发明的优选实施例, 其他符合本技术 方案的实施场景要求的网络也同样属于本发明实施例的保护范围。并且,在具体的实施场景中, 名词称谓的区别并不影响本发明实施例的保护范围。
相对于北美的通信控制网络, 本发明实施例所提出的技术方案主要是通过用 ENUM服务器 存储和管理号码规划信息 (LERG6数据), 并对各呼叫控制服务器提供标准的 ENUM査询接口, 以达到对号码规划信息集中存储, 统一管理的目的, 而其中号码规划信息具体包括 LATA信息 和 RC信息等, LATA和 RC的关系示意图具体如图 3所示。
各呼叫控制服务器可以通过标准的 ENUM NAPTR向 ENUM服务器査询号码规划信息, 主被叫 终端的号码通过标准的 ENUM査询接口输入给 ENUM服务器, 通过在 ENUM服务器上匹配 NAPTR 记录, 返回该号码所属的 LATA、 RC等号码规划信息。
由于在北美的通信控制网络中, 号码的前六位即 NPA-NXX可以唯一确定号码所属的 LATA 和 RC信息, 所以, 本实施例以前六位号码 612-201和 207-698的两个号码为例进行说明。
具体的, 612-201和 207-698在 ENUM服务器上的两条 NAPTR记录信息如下:
1. 0. 2. 2. 1. 6 IN NAPTR 100 10 "\x" "sip+E2U" 'Ί ' (· *) $! sip: \\ 1;
napn_lata=628; napn_rc=TWINCITIES! " .
*. 8. 9. 6. 7. 0. 2 IN NAPTR 100 10 "\x" "sip+E2U" 'Ί ' (. *) $ ! sip : \\ 1;
napn_lata=120 ; napn_rc=BERWICK ! " .
通过该信息, 可以看到六位号首为 612-201的号码通过 NAPTR记录, 映射到一个 Sip URI 中, 该 Sip URI里以参数的形式添加了 LATA和 RC信息, 其中, LATA信息为三位标识, 即 628, RC 信息为最长十位的标识字符, 六位号首为 612-201 的号码对应的 RC 信息为十位, 即 TWINCITIES。
这样当呼叫控制服务器以 612— 201— XXXX的号码来査询 ENUM时, 这些参数就会作为该号 码的规划信息, 随着査询响应消息一并返回给呼叫控制服务器。
相类似的,六位号首为 207-698的号码通过 NAPTR记录,映射到一个 Sip URI中,该 Sip URI 里以参数的形式添加了 LATA和 RC信息, 其中, LATA信息为为三位标识, 即 120, RC信息为最 长十位的标识字符, 六位号首为 207-698的号码对应的 RC信息为七位, RC信息为 BERWICK。
为了不和其他 ENUM査询混淆, 可以定义单独的顶级域名 Top Level Domain, 本文为了描 述方便, 顶级域名暂时用已有的 e l64. arpa为例。
基于以上的规则设置, 下面通过本发明实施例三进行具体的流程说明, 假设主叫用户 612-201-1234呼叫被叫用户 207-698-4321, 那么流程图如图 4所示, 包括以下步骤:
步骤 S401、主叫终端向呼叫控制服务器发送呼叫建立请求, 该呼叫建立请求中包含主被叫 终端的号码信息。
步骤 S402、 呼叫控制服务器向 ENUM服务器发送主叫终端号码规划信息的査询请求消息。 即呼叫控制服务器发送包含主叫用户的 E164号码 612-201-1234的 NAPTR査询消息, 请求 査询该号码的规划信息。
需要指出的是, 在本发明实施例所提出的技术方案中, 呼叫控制服务器向 ENUM服务器的 査询过程是通过标准的 ENUM接口来实现的, 所以, 在向 ENUM服务器发送主被叫号码时, 是通 过将原有的 E164号码翻译为符合标准 ENUM接口的 DNS域名来进行传输的, 例如, E164号码 612- 201- 1234将被映射为 4. 3. 2. 1. 1. 0. 2. 2. 1. 6. e l64. arpa的 DNS域名, 其中, e l64. arpa为 顶级域名, 以便于 ENUM服务器识别该信息。
通过上述的说明, 步骤 S402 具体为: 呼叫控制服务器通过标准的 ENUM 接口发送包含 " 4. 3. 2. 1. 1. 0. 2. 2. 1. 6. e l64. arpa"的 DNS域名信息的査询消息, 请求査询对应的规划信息。
这一点在全文中都是一致的, 后文的实施例中不再重复叙述。
步骤 S403、 ENUM服务器向呼叫控制服务器发送主叫终端号码规划信息的査询响应消息。 即 ENUM服务器发送包含主叫用户号码的规划信息的 NAPTR响应消息, 向呼叫控制服务器 反馈主叫用户号码的规划信息, 包括 LATA信息和 RC信息。
步骤 S404、 呼叫控制服务器向 ENUM服务器发送被叫终端号码规划信息的査询请求消息。 即, 呼叫控制服务器通过标准的 ENUM接口发送包含 " 1. 2. 3. 4. 8. 9. 6. 7. 0. 2. e l64. arpa" 的 DNS域名信息的査询消息, 请求査询对应的规划信息。
步骤 S405、 ENUM服务器向呼叫控制服务器发送被叫终端号码规划信息的査询响应消息。 即 ENUM服务器发送包含被叫用户号码的规划信息的 NAPTR响应消息, 向呼叫控制服务器 反馈被叫用户号码的规划信息, 包括 LATA信息和 RC信息。
需要进一步指出的是,步骤 S402和步骤 S403完成了主叫用户号码的规划信息的査询流程, 步骤 S404和步骤 S405完成了被叫用户号码的规划信息的査询流程, 但是, 主叫用户号码的规 划信息的査询流程和被叫用户号码的规划信息的査询流程之间没有必然的先后关系,步骤 S402 和 S403与步骤 S404和 S405之间先后顺序的变化并不影响本发明实施例的保护范围。
步骤 S406、 呼叫控制服务器根据接收到的主被叫用户号码的规划信息, 判断该主被叫用户 所对应呼叫业务的呼叫属性类型。
具体的判断规则说明如下:
参照图 3中所示的 LATA和 RC的关系, 假设 LATA1中的一个号码 A属于 RC1, 如果该号码 呼叫属于 LATA2中的一个号码, 那么这个呼叫的呼叫属性类型 (Cal l Type ) 为 InterLATA, 即 在不同的 LATA之间进行通信,如果 A呼叫 LATA1中 RC6的一个号码,因为主被叫都属于 LATA1 , 那么这个呼叫的呼叫属性类型 (Cal l Type ) 为 IntraLATA, 即在同一个 LATA内部进行通信, 而如果 A呼叫 RC1 中的一个号码, 因为主被叫都属于一个 RC, 那么这个呼叫的呼叫属性类型 ( Cal l Type ) 为 Local。
步骤 S407、 呼叫控制服务器向被叫用户发送呼叫建立消息, 建立主叫用户和被叫用户之间 的呼叫业务。
在本实施例中,呼叫控制服务器通过两次 NAPTR査询分别获得了主被叫的 LATA和 RC信息, 再进一步结合本地的判断逻辑, 判断出本次呼叫的呼叫类型。 继而实现了不需要在本地保存大 量数据, 即可判断出 Cal l Type的目的。
具体的, 本发明实施例三所提出的技术方案可以在 IP 多媒体子系统 (IP Multimedia Subsystem, IMS ) 网络中实现, 呼叫控制服务器即会话控制功能实体 (Cal l Session Control Function, CSCF) , CSCF可以通过标准 ENUM査询接口去 ENUM服务器上査询主被叫用户的规划 信息, 再根据査询的规划信息判断出该呼叫业务的 Cal l Type o
考虑到 IMS网络中呼叫控制和业务分离的架构, 业务服务器 (Appl icat ion Server, AS ) 在某些场景下也需要能够通过 ENUM査询接口获得用户的 LATA, RC信息。 具体的, 在 IMS网络中的按照本发明实施例技术方案所提出的呼叫控制网络的组网结构示 意图如图 5所示。
通过该示意图可以看到, 在该组网结构中实现了对号码规划信息的集中数据存储, 方便了 数据的维护和更新, 并且 CSCF/AS和 ENUM之间采用标准的 ENUM接口, 没有任何扩展, 对现有 网络结构的更改程度降到最低, 有效控制了成本。
需要指出的是, 因为该组网结构是集中存储, 为了提供更高可靠性, 可以将 ENUM服务器 以资源池的方式部署, 以达到负荷分担和容灾的效果。
具体的,本发明通过实施例四具体描述上述的在 IMS网络下 CSCF进行呼叫属性判断的方法, 相应的在 IMS中 CSCF査询 ENUM的呼叫流程示意如图 6所示。
为方便说明, 在本实施例中同样按照前述实施例假设主叫用户 612-201-1234 呼叫被叫用 户 207-698-4321, 则该方法包括以下步骤:
步骤 S601、 终端向 P-CSCF (代理 CSCF) 发送呼叫建立请求, 该呼叫建立请求中包含主被 叫终端的号码信息。
步骤 S602、 P-CSCF向 S-CSCF (服务 CSCF) 转发该呼叫建立请求, 该呼叫建立请求中包含 主被叫终端的号码信息。
步骤 S603、 S-CSCF向 ENUM服务器发送主叫终端号码规划信息的査询请求消息。
即 S-CSCF通过标准的 ENUM接口发送包含 " 4. 3. 2. 1. 1. 0. 2. 2. 1. 6. e l64. arpa " 的 DNS域 名信息的査询消息, 请求査询对应的规划信息。
步骤 S604、 ENUM服务器向 S-CSCF发送主叫终端号码规划信息的査询响应消息。
即 ENUM服务器发送包含主叫用户号码的规划信息的 NAPTR响应消息, 向 S-CSCF反馈主叫 用户号码的规划信息, 包括 LATA信息和 RC信息。
步骤 S605、 S-CSCF向 ENUM服务器发送被叫终端号码规划信息的査询请求消息。
即 S-CSCF通过标准的 ENUM接口发送包含 " 1. 2. 3. 4. 8. 9. 6. 7. 0. 2. e l64. arpa " 的 DNS域 名信息的査询消息, 请求査询对应的规划信息。
步骤 S606、 ENUM服务器向 S-CSCF发送被叫终端号码规划信息的査询响应消息。
即 ENUM服务器发送包含被叫用户号码的规划信息的 NAPTR响应消息, 向 S-CSCF反馈被叫 用户号码的规划信息, 包括 LATA信息和 RC信息。
步骤 S607、 S-CSCF根据接收到的主被叫用户号码的规划信息, 判断该主被叫用户所对应 呼叫业务的呼叫属性类型。 步骤 S608、 S-CSCF向 AS发送呼叫建立消息,以建立主叫用户和被叫用户之间的呼叫业务。 在本实施例中,呼叫控制服务器通过两次 NAPTR査询分别获得了主被叫的 LATA和 RC信息, 再进一步结合本地的判断逻辑, 判断出本次呼叫的呼叫类型。 继而实现了不需要在本地保存大 量数据, 即可判断出 Cal l Type的目的。
具体的, 在该种呼叫流程下, 主叫侧 CSCF需要能够分别为主、 被叫号码各査一次 ENUM服 务器,以获得主被叫号码所属的 LATA和 RC信息,然后结合本地的判断逻辑得出本次呼叫的 Cal l
Type。
进一步的, 因为某些业务需要知道 Cal l Type才能进行后续的判断和服务, 比如限制某种 类型的 Cal l Type呼叫, 那么 CSCF在触发到 AS之前, 需要将判断出来的 Cal l Type以某种方 式带给 AS, 具体的携带方式可以是在 S ip消息中定义某种格式的参数, 而当 AS的某些业务涉 及到对主, 被叫号码的更改时, 当触发完再到 CSCF时, CSCF还需要再次进行 Cal l Type的判 断。
正是因为业务的影响, 因此也可以让 AS去实现 Cal l Type的判断, 那么 ENUM査询将再 AS 上执行, 具体的流程通过本发明实施例五来说明, 其流程示意图如图 7所示, 包括以下步骤: 步骤 S701、 终端向 P-CSCF发送呼叫建立请求, 该呼叫建立请求中包含主被叫终端的号码 息
步骤 S702、 P-CSCF向 S-CSCF转发该呼叫建立请求, 该呼叫建立请求中包含主被叫终端的 号码信息。
步骤 S703、 S-CSCF向 AS转发该呼叫建立请求, 该呼叫建立请求中包含主被叫终端的号码 信息。
步骤 S704、 AS向 ENUM服务器发送主叫终端号码规划信息的査询请求消息。
即 AS通过标准的 ENUM接口发送包含 " 4. 3. 2. 1. 1. 0. 2. 2. 1. 6. e l64. arpa" 的 DNS域名信 息的査询消息, 请求査询对应的规划信息。
步骤 S705、 ENUM服务器向 AS发送主叫终端号码规划信息的査询响应消息。
即 ENUM服务器发送包含主叫用户号码的规划信息的 NAPTR响应消息, 向 AS反馈主叫用户 号码的规划信息, 包括 LATA信息和 RC信息。
步骤 S706、 AS向 ENUM服务器发送被叫终端号码规划信息的査询请求消息。
即 AS通过标准的 ENUM接口发送包含 " 1. 2. 3. 4. 8. 9. 6. 7. 0. 2. e l64. arpa" 的 DNS域名信 息的査询消息, 请求査询对应的规划信息。 步骤 S707、 ENUM服务器向 AS发送被叫终端号码规划信息的査询响应消息。
即 ENUM服务器发送包含被叫用户号码的规划信息的 NAPTR响应消息, 向 AS反馈被叫用户 号码的规划信息, 包括 LATA信息和 RC信息。
步骤 S708、 AS 根据接收到的主被叫用户号码的规划信息, 判断该主被叫用户所对应呼叫 业务的呼叫属性类型。
步骤 S709、 AS向 S-CSCF发送呼叫建立消息, 由 S-CSCF进行进一步处理, 建立主叫用户 和被叫用户之间的呼叫业务。
通过上述的技术方案, 只要是有对 Cal l Type产生影响的业务, AS都需要査询 ENUM服务 器。
进一步的, 处于具体应用场景的要求, 需要 CSCF和 AS都能够去査询 ENUM服务器, 并进 行 Cal l Type的判断, 从而保证数据的准确性, 这样的技术方案流程与本发明前述实施例所描 述的方法流程类似, 也同样属于本发明实施例的保护范围, 这里不再赘述。
本发明实施例六具体描述了一种通过在号码信息存储服务器, 如 HSS/HLR 集中保存规划信 息,由呼叫控制服务器(S-CSCF/I-CSCF/AS)或号码信息存储服务器 (HSS/HLR ) 实现呼叫属性 ( CALL TYPE) 的判断。 下面结合附图 8具体说明呼叫属性判断的流程。
步骤 801、 S-CSCF收到用户注册消息, 发送 SAR ( Server- Assignment- Request服务器分 配请求) 下载用户签约数据;
需要说明的是, 对于未注册用户或本地注册用户数据中没有用户规划信息的用户, S-CSCF 可以先使用主叫号码的 NPA-NXX査询 HSS获得主叫用户的规划信息;
步骤 802、 HSS在收到 S-CSCF发送的用户签约数据后,在 SAA ( Server-Ass ignment-Answer 服务器分配响应) 中通过组 AVP格式下载用户所属的规划信息(RC, LATA);
步骤 803、 S-CSCF在收到 HSS发送的规划信息后, 保存规划信息到本地数据;
步骤 804、 S-CSCF返回注册 200响应;
步骤 805、 S-CSCF在收到 invite请求后, 从 Request-URI中取出被叫的号码并规整; 步骤 806、 S-CSCF检査 invite 请求中没有携带 CALL TYPE信息, 先使用主叫号码中的 NPA-NXX和被叫号码的 NPA-NXX査询本地配置, 如果能够获得呼叫属性则不需要査询被叫规划 信息, 如果不能获取呼叫属性, 则使用被叫号码中的 NPA-NXX组成 TEL格式的 PSI, 然后发送 SAR到 HSS获得规划信息;
步骤 807、 HSS收到 SAR请求后, 根据 PSI做精确匹配获得对应的 PSI的规划信息, 将该 规划信息通过组 AVP格式返回给 S-CSCF;
步骤 808、S-CSCF根据主被叫的规划信息(RC, LATA数据)和本地保存的规划关联信息 (LOCAL RC ) 数据进行 CALL TYPE判断, 获得呼叫属性,并填写在请求 trunk group参数携带, S- CSCF 将主叫号码中的 NPA-NXX,被叫号码中的 NPA-NXX, 对应的 CALL TYPE保存在本地。
当本次通话结束后, 若用户再次拨打被叫号码, 则有以下后续步骤: 步骤 809、 S-CSCF收 到初始 Invite请求后, 从主被叫号码中取出 NPA-NXX,査询本地配置获得呼叫属性;
步骤 810、 S-CSCF在发送出请求中携带呼叫属性。
此时, 由于 S-CSCF 已经存储了特定主被叫号码之间的呼叫对应的呼叫属性, 因此对于这 个初始呼叫请求, 不需要査询 HSS, 而是直接从本地获取呼叫属性即可。
需要说明的是, 为了避免使用率低的冗余数据占用 HSS/HLR内存空间, 所以保存的规划信 息遵循一定的保存周期和老化机制, 例如保存周期可以使用系统支持的最大注册时长。 图 9示出了本发明实施例七中一种呼叫属性判断的流程图, 如图 9所示, 所述呼叫属性判 断流程包括:
步骤 901、 I-CSCF在收到 invite请求后, 从 request-uri中取出被叫的号码并规整; 步骤 902、 I-CSCF检査请求中没有携带 CALL TYPE信息, 先使用主叫号码中的 NPA-NXX和 被叫号码的 NPA-NXX査询本地配置, 没有获取到 CALL TYPE后, 使用主叫号码中的 NPA-NXX组 成 TEL格式的 PSI发送 LIR (Locat ion-Info-Request本地信息请求)下载用户数据;
步骤 903、 HSS收到 LIR请求后, 根据 PSI做精确匹配获得对应的 PSI的规划信息, 通过 组 AVP格式返回 LIA ( Location-Info-Answer本地信息响应) 给 I-CSCF;
步骤 904、 I-CSCF收到 LIA后获得主叫规划信息并保存本地, 使用被叫号码中的 NPA, NXX 组成 TEL格式的 PSI发送 LIR下载用户数据;
步骤 905、 HSS收到 LIR请求后,根据 PSI做精确匹配获得对应的 PSI的规划信息.通过组
AVP格式返回 LIA给 I-CSCF;
步骤 906、 I-CSCF接收到的 LIA后, 获取主叫规划信息并保存本地。 根据获得的主被叫的 规划信息(RC, LATA数据)和规划关联信息 (LOCAL RC ) 数据进行呼叫属性判断, 获得呼叫属性, 并填写在请求中携带, I-CSCF将主叫号码中的 NPA-NXX, 被叫号码中的 NPA-NXX, 对应的 CALL TYPE保存在本地;
步骤 907、 I-CSCF收到初始 Invite请求后, 从主被叫号码中取出 NPA-NXX,査询本地配置 获得呼叫属性;
步骤 908、 I-CSCF在发送出请求中携带呼叫属性。
上述实施例中, 也可以主被叫规划信息一起从 HSS下载。
AS (Application Server, 应用服务器)在本地保存位置关联信息(LOCAL RC)的情况, 与上述 实施例六、 七类似。 在 HSS/HLR上保存 LATA,RC数据, AS通过 SH接口使用 PSI下载 LATA, RC 数据。 对于支持第三方注册方并能提供业务的 AS在第三方注册的处理过程中, 从 HSS/HLR上 通过 SH接口按照用户 IMPU下载用户对应的规划信息(RC,LATA), 后续流程同 S-CSCF、 I-CSCF 的获取 CALL TYPE流程类似, 在此不再赘述。
本发明实施例六、 七中描述的呼叫属性判断流程, 其中 LOCAL RC 数据保存在本地, S-CSCF/I-CSCF根据从 HSS获取的主被叫的规划信息(RC, LATA)以及本地保存的 LOCAL RC数据 来判断本次呼叫的呼叫属性(CALL TYPE) ; 需要进一步说明的是, 本发明还可以实施为: LATA, RC, LOCAL, RC数据都保存在 HSS中, I-CSCF/S-CSCF/AS进行呼叫属性逻辑判断, 下面进行说 明。
如图 10所示, 本发明实施例八中 I-CSCF/S-CSCF/AS进行呼叫属性逻辑判断的流程包括: 步骤 1001-1005、 在收到 invite请求后,与 HSS交互获得主被叫用户的规划信息, 流程可 以参照前面实施例相关描述, 此处不赘述;
步骤 1006、 呼叫控制服务器(I-CSCF/S-CSCF)或 AS使用获得的主被叫规划信息, 向 HSS 发送用户关联关系请求消息, 消息中携带关联类型标志(如位置关联);
此处具体是指: 用户规划关联信息 (Local RC)保存在 HSS/HLR上, HSS根据呼叫控制服务 器(I-CSCF/S-CSCF)或 AS发送用户关联关系请求消息, 査询用户关联信息(Local RC);
步骤 1007、 呼叫控制服务器(I-CSCF/S-CSCF)或 AS收到 HSS返回的位置关联关系响应后, 根据关联结果即规划关联信息判断所述呼叫的呼叫属性, 具体为:
如果关联结果为无或空, 则不改变本地的呼叫属性, 如果关联结果为存在关联, 则使用关 联具体信息替换本地的呼叫属性;
步骤 1008、 呼叫控制服务器(I-CSCF/S-CSCF)或 AS 在发送出请求中携带呼叫属性(CALL TYPE)。
本发明实施例与实施例六、 七相比, 不同点在于所有规划信息和规划关联信息集中存储在 HSS/HLR上, 减少了数据冗余, 提高了数据的可靠性, 而呼叫属性的判断逻辑仍由呼叫控制服 务器(I-CSCF/S-CSCF)或 AS完成, HSS/HLR只作数据存放或管理, 并不涉及业务逻辑。
本发明还可以实施为, 规划信息, Local RC信息都在 HSS/HLR 上保存, 并且由 HSS/HLR 进行呼叫属性逻辑判断, 这种方式下一次呼叫只用一次交互即可获得呼叫属性信息, 提高了整 个呼叫控制网络的有效性。 下面结合本发明实施例九与附图 13进行详细描述。
如图 11所示, HSS/HLR进行呼叫属性逻辑判断方法的流程包括:
步骤 1101、 I-CSCF/S-CSCF/AS收到初始 Invite请求后, 检査没有携带呼叫属性信息, 使 用主被叫号码中的 NPANXX构造 URR ( User-Relation-Request用户关联请求)中的主被叫 PSI, 并在关联管理标志填写为用户标识信息;
步骤 1102、 I-CSCF/S-CSCF/AS发送 URR到 HSS ;
步骤 1103、 HSS根据主被叫 PSI査询对应签约数据获得主叫和被叫的规划信息和规划关联 信息, 根据主被叫的规划信息和规划关联信息进行呼叫属性判断, 获得呼叫属性信息, 填写在 URA ( User-Re lation-Answer 用户关联响应) 响应中 的关联具体信息中返回给 I-CSCF/S-CSCF/AS ,;
步骤 1104、 I-CSCF/S-CSCF/AS根据关联结果为有关联, 从关联具体信息中取出呼叫属性, 并填写在发送的 invite请求中。
本发明实施例提供的方案, 通过 IMS/NGN架构下的 HSS/HLR或 ENUM服务器集中数据存储 方式, 将 LATA和 RC数据, 和 /或 Local RC存储在 HSS/HLR或者 ENUM服务器上, 实现用户数 据的集中统一管理, 然后由呼叫控制服务器或者 HSS/HLR根据 LATA和 RC, 和 /或 Local RC等 数据判断呼叫属性, 这样既大大节省了呼叫控制设备 /交换设备的内存, 又减少了判断呼叫属 性流程中的交互次数, 提高了数据存储的效率和可靠性。
本发明实施例对 IMS网络下技术方案的实现流程进行了说明, 需要进一步指出的是, 本发 明实施例所提出的技术方案也可以在软交换网络中实现, 即由软交换的呼叫控制服务器负责去 ENUM服务器、 或升级后的 HLR、 或 HSS/HLR上査询, 继而根据査询结果判断出本次呼叫的呼叫 类型。因为査询过程同样与本发明前述实施例所描述的方法流程类似,这里就不再重复描述了。
本发明实施例的技术方案具有以下优点, 因为采用了通过用号码信息存储服务器(如 ENUM服务 器、 或 HSS/HLR) 对号码规划信息数据进行存储和管理, 为各呼叫控制服务器提供号码规划信息的 査询服务的方案, 从而, 实现了对号码规划信息的集中存储和统一管理, 达到了降低维护成本, 节 约存储空间和硬件资源的效果。 基于号码信息存储服务器, 本发明实施例提出的呼叫属性判断方法、 设备和系统, 可以方便地 对终端的呼叫属性进行判断。
通过以上的实施方式的描述, 本领域的技术人员可以清楚地了解到本发明可以通过硬件实现, 也可以可借助软件加必要的通用硬件平台的方式来实现基于这样的理解, 本发明的技术方案可以以 软件产品的形式体现出来, 该软件产品可以存储在一个计算机可读存储介质(可以是 CD-ROM, U盘, 移动硬盘等) 中, 包括若干指令用以使得一台计算机设备 (可以是个人计算机, 服务器, 或者网络 设备等)执行本发明各个实施例所述的方法。
以上所述, 仅为本发明较佳的具体实施方式, 但本发明的保护范围并不局限于此, 任何熟悉本 技术领域的技术人员在本发明揭露的技术范围内, 可轻易想到的变化或替换, 都应涵盖在本发明的 保护范围之内。 因此, 本发明的保护范围应该以权利要求的保护范围为准。

Claims

权利要求
1、 一种呼叫属性判断方法, 其特征在于, 包括以下步骤:
接收主叫终端发送的包含主叫终端号码和被叫终端号码的呼叫请求消息;
根据所述呼叫请求消息,向号码信息存储服务器査询所述主叫终端号码和 /或所述被叫终端号码 的规划信息;
根据所述主叫终端号码和所述被叫终端号码的规划信息, 判断所述呼叫请求消息所对应的呼叫 业务的呼叫属性。
2、 如权利要求 1所述的方法, 其特征在于, 所述向号码信息存储服务器査询所述主叫终端号码 和 /或所述被叫终端号码的规划信息, 具体包括:
向所述号码信息存储服务器发送包含所述主叫终端号码的査询请求消息, 接收所述号码信息査 询服务器返回的包含所述主叫终端号码规划信息的査询响应消息; 和 /或
向所述号码信息存储服务器发送包含所述被叫终端号码的査询请求消息, 接收所述号码信息査 询服务器返回的包含所述被叫终端号码规划信息的査询响应消息。
3、 如权利要求 1所述的方法, 其特征在于, 所述方法还包括:
根据所述主叫终端号码、 所述被叫终端号码的规划信息, 以及规划关联信息, 判断所述呼叫请 求消息所对应呼叫业务的呼叫属性。
4、 如权利要求 3所述的方法, 其特征在于, 所述根据所述主叫终端号码、 所述被叫终端号码的 规划信息, 以及规划关联信息, 判断所述呼叫请求消息所对应呼叫业务的呼叫属性, 包括:
根据所述主叫终端号码和所述被叫终端号码的规划信息, 向所述号码信息存储服务器发送用户 规划关联请求, 并根据所述号码信息存储服务器发送的规划关联信息判断所述呼叫请求消息所对应 呼叫业务的呼叫属性。
5、 如权利要求 1所述的方法, 其特征在于, 所述根据所述主叫终端号码和所述被叫终端号码的 规划信息, 判断所述呼叫请求消息所对应呼叫业务的呼叫属性, 包括:
号码信息存储服务器査询所述主叫终端号码和 /或所述被叫终端号码的规划信息,并根据所述主 叫终端号码和 /或所述被叫终端号码的规划信息, 判断所述呼叫请求消息所对应呼叫业务的呼叫属 性。
6、 如权利要求 3或 5所述的方法, 其特征在于, 所述的方法还包括:
所述号码信息存储服务器査询所述主叫终端号码和 /或所述被叫终端号码的规划信息,根据所述 主叫终端号码和 /或所述被叫终端号码的规划信息査询规划关联信息,根据所述规划关联信息判断所 述呼叫请求消息所对应呼叫业务的呼叫属性。
7、 如权利要求 1至 5所述的方法, 其特征在于, 当所述被叫终端号码为预设的服务号码时, 所 述向号码信息存储服务器査询所述主叫终端号码和 /或所述被叫终端号码的规划信息, 具体为: 向所述号码信息存储服务器査询所述主叫终端号码的规划信息;
接收所述号码信息存储服务器发送的所述主叫终端号码的规划信息, 根据所述主叫终端号码的 规划信息所代表的规划区域, 按照预设的规则为所述被叫终端号码生成规划参数。
8、 如权利要求 7所述的方法, 其特征在于, 根据所述主叫终端号码和所述被叫终端号码的规划 信息, 判断所述呼叫请求消息所对应呼叫业务的呼叫属性, 具体为:
根据所述主叫终端号码的规划信息和所述被叫终端号码的规划参数, 判断所述呼叫请求消息所 对应呼叫业务的呼叫属性为本地呼叫, 以使所述主叫终端实现对本地服务号码的呼叫业务。
9、 如权利要求 1所述的方法, 其特征在于, 根据所述主叫终端号码和所述被叫终端号码的规划 信息, 判断所述呼叫请求消息所对应呼叫业务的呼叫属性的步骤, 还可以包括:
根据所述主叫终端号码和所述被叫终端号码的规划信息所对应的规划区域名, 生成所述主叫终 端号码和所述被叫终端号码的规划域名;
査询保存本地呼叫域名集合的域名系统中是否包括所述主叫终端号码和所述被叫终端号码的规 划域名;
当所述域名系统中包含所述规划域名时, 则判定所述主叫终端号码和所述被叫终端号码位于同 一本地呼叫区域, 并接收所述域名系统生成的本地呼叫类型参数; 当所述域名系统中未包含所述规 划域名时, 则判定所述主叫终端号码和所述被叫终端号码位于不同的本地呼叫区域。
10、 如权利要求 1所述的方法, 其特征在于, 所述方法之前, 还包括以下步骤:
当所述主叫终端注册时, 保存所述主叫终端号码的规划信息; 所述向号码信息存储服务器査询 所述主叫终端号码和 /或所述被叫终端号码的规划信息, 具体为:
获取本地所保存的所述主叫终端号码的规划信息;
向所述号码信息存储服务器査询所述被叫终端号码的规划信息。
11、 如权利要求 1所述的方法, 其特征在于, 所述根据主叫终端号码和所述被叫终端号码的规 划信息, 判断所述呼叫请求消息所对应呼叫业务的呼叫属性之后, 还包括:
保存所述主叫终端号码和所述被叫终端号码的规划信息;
当接收到所述主叫终端发送的对其他被叫终端的呼叫请求消息时, 获取本地所保存的所述主叫 终端号码的规划信息, 向所述号码信息存储服务器査询所述其他被叫终端号码的规划信息; 或, 当接收到其他主叫终端发送的对所述被叫终端的呼叫请求消息时, 获取本地所保存的所述被叫 终端号码的规划信息, 向所述号码信息存储服务器査询所述其他主叫终端号码的规划信息; 或, 当接收到所述主叫终端发送的对所述被叫终端的呼叫请求消息时, 获取本地所保存的所述主叫 终端和所述被叫终端号码的规划信息。
12、 一种呼叫控制服务器, 其特征在于, 包括:
接收模块, 用于接收主叫终端发送的包含主叫终端号码和被叫终端号码的呼叫请求消息; 第一査询模块, 用于向号码信息存储服务器査询所述接收模块所接收呼叫请求消息中的主叫终 端号码和 /或所述被叫终端号码的规划信息和 /或规划关联信息;
判断模块, 用于根据所述第一査询模块所査询的所述主叫终端号码和所述被叫终端号码的规划 信息和 /或规划关联信息, 判断所述呼叫请求消息所对应呼叫业务的呼叫属性。
13、 如权利要求 12所述的呼叫控制服务器, 其特征在于, 所述呼叫控制服务器还包括: 存储模块, 用于当所述主叫终端注册时, 保存所述主叫终端号码的规划信息, 或, 保存所述第 一査询模块所査询的所述主叫终端号码和 /或所述被叫终端号码的规划信息;
所述第一査询模块,还用于向所述存储模块査询所述主叫终端号码和 /或所述被叫终端号码的规 划信息。
14、 如权利要求 12或 13所述的呼叫控制服务器, 其特征在于, 所述呼叫控制服务器还包括: 生成模块, 用于根据所述第一査询模块所査询的主叫终端号码和被叫终端号码的规划信息所对 应的规划区域名, 生成所述主叫终端号码和所述被叫终端号码的规划域名;
第二査询模块, 用于査询保存本地呼叫域名集合的域名系统中是否包括所述生成模块生成的所 述主叫终端号码和被叫终端号码的规划域名。
15、 如权利要求 12或 13所述的呼叫控制服务器, 其特征在于, 所述判断模块, 还用于根据所 述第一査询模块所査询的所述主叫终端号码、 所述被叫终端号码的规划信息, 以及规划关联信息, 判断所述呼叫请求消息所对应呼叫业务的呼叫属性。
16、 一种号码信息存储服务器, 其特征在于, 包括:
存储模块, 用于存储号码的规划信息和 /或规划关联信息;
接收模块, 用于接收主叫终端号码和 /或被叫终端号码的规划信息査询消息;
査询模块,用于根据所述接收模块所接收的主叫终端号码和 /或被叫终端号码的规划信息査询消 息, 査询所述存储模块, 获得相应的主叫终端号码和 /或被叫终端号码的规划信息; 和 /或根据主叫 终端号码和 /或被叫终端号码的规划信息, 査询所述存储模块, 获得相应的规划关联信息; 发送模块, 用于发送所述査询模块获得的相应的主叫终端号码和 /或被叫终端号码的规划信息; 和 /或所述査询模块获得的相应的规划关联信息。
17、如权利要求 16所述的号码信息存储服务器,其特征在于,所述号码信息存储服务器还包括: 判断模块,用于根据所述査询模块获得的相应的主叫终端号码和 /或被叫终端号码的规划信息以 及所述规划关联信息, 判断所述呼叫请求消息所对应呼叫业务的呼叫属性。
18、如权利要求 16所述的号码信息存储服务器,其特征在于,所述号码信息存储服务器还包括: 生成模块, 用于当所述被叫终端号码为预设的服务号码时, 根据所述主叫终端号码的规划信息, 生成所述被叫终端号码的规划参数;
所述发送模块发送所述被叫终端号码的规划参数给呼叫控制服务器。
19、如权利要求 16所述的号码信息存储服务器,其特征在于,所述号码信息存储服务器还包括: 更新模块, 用于根据路由更新指导文件, 更新所述存储模块中所存储的号码的规划信息。
20、如权利要求 16所述的号码信息存储服务器,其特征在于,所述号码信息存储服务器具体为: 一个号码信息存储服务器, 或多个号码信息存储服务器组成的号码信息存储服务器池。
21、 一种呼叫控制网络, 其特征在于, 包括:
号码信息存储服务器, 用于存储号码的规划信息和 /或规划关联信息;
呼叫控制服务器,用于向所述号码信息存储服务器査询呼叫业务的主叫终端号码和 /或被叫终端 号码的规划信息, 并根据所述规划信息和 /或规划关联信息判断所述呼叫业务的呼叫属性。
22、 如权利要 21所述的呼叫控制网络, 其特征在于, 所述号码信息存储服务器, 还用于根据获 得的主叫终端号码和 /或被叫终端号码的规划信息以及所述规划关联信息,判断所述呼叫请求消息所 对应的呼叫业务的呼叫属性。
23、 如权利要求 21所述的呼叫控制网络, 其特征在于, 所述号码信息存储服务器, 还用于当所 述被叫终端号码为预设的服务号码时, 根据所述主叫终端号码的规划信息, 生成所述被叫终端号码 的规划参数, 将该规划参数发送给所述呼叫控制服务器。
24、 如权利要求 21所述的呼叫控制网络, 其特征在于, 所述号码信息存储服务器, 具体为: 一 个号码信息存储服务器, 或多个号码信息存储服务器组成的号码信息存储服务器池。
PCT/CN2009/074593 2008-10-24 2009-10-23 一种呼叫属性判断方法、设备和系统 WO2010045882A1 (zh)

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