CN101309334A - Charging method of number portable service in IP multimedia sub-system - Google Patents
Charging method of number portable service in IP multimedia sub-system Download PDFInfo
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Abstract
Disclosed is a charging method of the number-carrying service in the IP multimedia sub system network; if the initiating network and/or the terminating network of the IP multimedia sub system service judges that the called party of the service occurs the number- carrying, a number-carrying identifier is added to the charging request sent to the charging data functional entity; the charging data functional entity receives the charging request and acquires the charging request of the number-carrying service and the carrying network which the current called party belongs to according to the contained number-carrying identifier and has the corresponding charging processing towards the carrying network. The charging method is adopted to record the route information of the called number which has the number-carrying for the accurate charging; meanwhile, the corresponding Event ACR is generated when the NPDB query is processed in the apanage network to facilitate the payment between the apanage network of the called number and the current carrying network.
Description
Technical field
The present invention relates to the communications field, relate in particular to the charging method of number portability service in a kind of IP Multimedia System network.
Background technology
Number carries and is meant that telecom client still keeps original telecommunications service number under the situation of changing resident place or operator.In certain areas, number carries the Compulsory Feature as a kind of telecommunications supervision department, is used to protect the interests of weak tendency telecom operators; Also there is part operator to provide number to carry,, reduces churn rate to satisfy the demand that those change the client in resident place in the network internal of oneself.
We remain constant number with the user and are called and are portability number (Portable Number, be called for short PN), perhaps be called Directory Number (Directory Number, be called for short DN), different operators/regional operator is responsible for the distribution of PN prefix, we will be referred to as number possession network (Donor Network) for PN distributes the network of the operator/regional operator correspondence of prefix, promptly can accurately locate number possession network by the prefix of PN.
In case PN subordinate zone network carries away, the possession network just can not re-use this number, but the current routing iinformation that carries ground (be called and carry network) of this number is stored in the number portability database (Number Portability Database is called for short NPDB).
For the complexity that reduces PN and carry corresponding relation between the ground routing iinformation, no matter carry the professional how many times that takes place, the routing iinformation of PN is preserved by the possession network all the time, so that the miscellaneous equipment in the network finds the possession network according to PN, find in the subordinate zone network then this PN carry ground routing iinformation.
Carry in the system at number, in order to carry out correct continuing, need be routing number of portability number assignment (Location Routing Number, be called for short LRN), in general this routing number can uniquely navigate to a fixed network exchange or the mobile attaching position register (HomeLocation Register is called for short HLR) or the IMS territory of operator.When supporting the free code of cross operator, the system of carrying (is also referred to as the collect call number, 800 number for example) when carrying, because can't be according to the unique operator that navigates to of this number, therefore also need to write down the current place of free code Carrier Identification Code (CarrierIdentifier Code is called for short CIC).
Number carries following four kinds of implementation patterns:
1) full inquiry (All Call Query is called for short ACQ) pattern
As shown in Figure 1, when adopting this pattern, NPDB is provided with for concentrating.Initiate the NPDB inquiry when beginning exhales network to receive service request, NPDB returns the routing number of the current place of this number network, and the beginning exhales network based this routing number that service request is sent to the current place of this number network.
2) discharge inquiry (Query on Release is called for short QoR) pattern
As shown in Figure 2, when adopting this pattern, NPDB is provided with for concentrating.Beginning exhales network at first service request to be carried out common route and handles, and it is routed to the possession network of called number; The possession network exhales network to return release message to the beginning, represents that this number has been carried to other network; Beginning initiates the NPDB inquiry and obtains corresponding routing number after exhaling network to receive release message, according to this routing number service request is routed to called current place network (promptly carrying network) then.
3) call out rollback (Call Dropback is called for short CD) pattern
As shown in Figure 3, when adopting this pattern, NPDB is provided with for distributing.Beginning exhales network at first service request to be carried out common route and handles, and it is routed to the possession network of called number; The possession network finds that this called number carries, then inquire about the inside NPDB that is arranged on the possession network, and exhale network to return corresponding routing number to the beginning, the beginning exhales network based this routing number that service request is routed to corresponding network.
4) call out (Onward Routing the is called for short OR) pattern of advancing
As shown in Figure 4, when adopting this pattern, NPDB is provided with for distributing.Beginning exhales network at first service request to be carried out common route and handles, and it is routed to the possession network of called number; The possession network finds that this called number carries, so inquiry is arranged on the inside NPDB of possession network, obtains corresponding routing number, then service request is forwarded to the current place of this number network.
Carry function for the number in the IMS network, except the number that will support coding rule E.164, also to realize the number of SIP (Session Intial Protocol, initial session protocol) URI (UniformResource Locator, URL(uniform resource locator)) coding rule.
The existing charging way of IMS network is: in the processing procedure of IMS business, each related network elements is respectively to charging data function entity (Charging Data Function, be called for short CDF) send to charge and ask (Accounting Request, be called for short ACR), be configured to Call Detail Record (Call DetailRecord by CDF, be called for short CDR, or be called ticket, charging bill).Comprise among the ACR: information such as calling number, called number, time, service feature.Owing to do not comprise the relevant information of number portability service among the ACR, therefore above-mentioned charge mode is not supported number portability service.In addition, the existing IMS charging way check numbers the possession network that carries, carry network and do not distinguish, so also just can't bear the possession network and carry settlement function between the network.
In sum, the charging method of existing IMS network can't be handled at number portability service, has influenced the accuracy of chargeing.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the deficiencies in the prior art, and a kind of method that can charge to the number portability service of IMS network is provided.
In order to address the above problem, the invention provides the charging method of number portability service in a kind of IP Multimedia System network, comprising:
If the initiation network of IP Multimedia System business and/or termination network are judged this professional callee and number have been taken place carried, then add number and carry sign in the charging request that sends to the charging data function entity;
After the charging data function entity receives described charging request, carry sign according to the described number that wherein comprises and know the charging request that described charging request is a number portability service, and described callee carries network under current, and to its processing of chargeing accordingly.
In addition, described number carries and comprises routing number in the sign, and described charging data function entity is known the charging request that described charging request is a number portability service according to routing number, and described callee carries network under current.
In addition, if described callee's called number is a free code, then described number carries the Carrier Identification Code that also comprises this called number correspondence in the sign, and described charging data function entity is known described callee's possession network according to Carrier Identification Code.
In addition, if described callee's called number is not a free code, then add routing number in the following manner in the request of chargeing: the called party address field extension in the request of will chargeing is called number and two members of routing number;
If described callee's called number is a free code, then add routing number and Carrier Identification Code in the following manner in the request of chargeing: the called party address field extension in the request of will chargeing is called number, routing number and three members of Carrier Identification Code.
In addition, after the charging data function entity receives described charging request, check numbers in the following way and carry professional charging request processings of chargeing accordingly: the charging data function entity is according to the charging request generation charging bill that receives, and described charging bill is sent to Charging Gateway Functionality; Comprise routing number in the described charging bill, or comprise routing number and Carrier Identification Code;
Charging Gateway Functionality judges according to whether comprising routing number in the described charging bill whether this charging bill is the charging bill of number portability service, if then send it to the processing of chargeing of corresponding charging center.
In addition, the professional callee's of IP Multimedia System possession network carries out the number portability database inquiry after the service request that the initiation network that receives this business sends;
Callee's possession network sends event charging request charging request to charging data function entity charging data function entity; Wherein, comprise in the described charging request: described callee's called number, and be used to identify the number that carry network of described callee under current and carry sign;
After the charging data function entity receives described charging request, carry sign according to described number and know the charging request that described charging request is a number portability service, and described callee carries network under current, and to its processing of chargeing accordingly.
In addition, described number carries and comprises the routing number routing number in the sign; Described charging data function entity is known the charging request that described charging request is a number portability service according to routing number, and described callee carries network under current.
In addition, if described callee's called number is a free code, then described number carries the Carrier Identification Code Carrier Identification Code that also comprises this called number correspondence in the sign, and described charging data function entity is known described callee's possession network according to Carrier Identification Code.
In addition, comprise identification parameter in the field of described charging request, being used to identify this charging request is to carry out the charging request that the number portability database inquiry is chargeed;
Also comprise in the described charging request: the time of initiating the number portability database inquiry.
In addition, after the charging data function entity receives described charging request, check numbers in the following way and carry professional charging request processings of chargeing accordingly: the charging data function entity is according to the charging request generation charging bill that receives, and described charging bill is sent to Charging Gateway Functionality; Comprise routing number in the described charging bill, or comprise routing number and Carrier Identification Code;
Charging Gateway Functionality judges according to whether comprising routing number in the described charging bill whether this charging bill is the charging bill of number portability service, if then send it to the processing of chargeing of corresponding charging center.
In sum, IMS is professional to initiate network, termination network write downs the called number that the generation number carries in the ACR of number portability service correspondence routing iinformation, so that carry out accurate billing; Simultaneously, when the possession of called number network carries out the NPDB inquiry, produce corresponding Event ACR, settle accounts with the possession network and current the carrying between the network that make things convenient for called number; In addition, the invention allows for (Charging Gateway Function at CGF, Charging Gateway Functionality) CDR that carries professional correspondence that checks numbers on screens, and the CDR that filters out carried out special distribution processor, check numbers and carry the demand that professional corresponding CDR carries out special processing to satisfy operator.
Description of drawings
Fig. 1 carries schematic diagram for full query pattern number in the prior art;
Fig. 2 carries schematic diagram for discharging the query pattern number in the prior art;
Fig. 3 carries schematic diagram for calling out the fall-back mode number in the prior art;
Fig. 4 carries schematic diagram for calling out the forward mode number in the prior art;
Fig. 5 is the method flow diagram of the full query pattern of the embodiment of the invention and initiation network that discharges IMS business under the query pattern and termination network generation ACR;
Fig. 6 produces the professional method flow diagram of initiating network and termination network generation ACR of incident ACR, IMS for called possession network under the embodiment of the invention calling fall-back mode;
Called possession network produces the initiation network of incident ACR, IMS business and the method flow diagram that the termination network produces ACR to Fig. 7 under the forward mode for the embodiment of the invention is called out;
Fig. 8 filters out the CDR of number portability service for embodiment of the invention CGF, and it is carried out the method flow diagram of special distribution processor.
Embodiment
Describe the present invention below in conjunction with drawings and Examples.
Fig. 5 is the method flow diagram of full query pattern and initiation network that discharges IMS business under the query pattern and termination network generation ACR, and this method comprises the steps:
The professional initiation of step 501:IMS initiated the NPDB inquiry after network receives service request, inquires about the called number that whether taken place and carries;
Step 502:NPDB returns to the professional network of initiating with Query Result (being called routing iinformation);
Comprise LRN in the above-mentioned routing iinformation; If called number is a free code, also comprise CIC in the then above-mentioned routing iinformation.
Step 503: the routing iinformation that the network based NPDB of professional initiation returns is routed to the called current network that carries with service request; Comprise above-mentioned routing iinformation in this service request;
Step 504: the called current network that carries is carried out receipt (being response message) with business and is sent to the professional network of initiating;
Step 505: the called current network that carries produces ACR, and sends it to CDF by Rf interface;
The called current network that carries need judge that the called number that whether taken place carries when producing ACR, if then add above-mentioned routing iinformation in this ACR.
The professional network of initiating of step 506:IMS produces ACR, and sends it to CDF by Rf interface;
The professional network of initiating of IMS need judge that the called number that whether taken place carries when producing ACR, if then add above-mentioned routing iinformation in this ACR.
For called current network and the professional network of initiating of IMS of carrying, in order correctly in ACR, to add the routing iinformation of called number, Called Party Address (called party address) field that defines among the current ACR need be expanded, the Called Party Address field of definition is UTF8 (Unicode Translation Format 8 at present, single sign indicating number format transformation 8) String (character string) type, need expand to GROUP (group) type, Called Party Address field after the expansion comprises following member: called number (PN), LRN, CIC (, optional) only at free code; Each member is UTF8 String type.
In addition, in above-mentioned flow process, if IMS business relevant (Session-Related) business that is session, the current network that carries of initiating network and called number so also can send follow-up Interim/Stop (middle/as to stop) ACR to CDF.
Fig. 6 is for calling out the professional method flow diagram of initiating network and termination network generation ACR of called possession network generation Event (incident) ACR (ACR that session is irrelevant), IMS under the fall-back mode, and this method comprises the steps:
The professional initiation of step 601:IMS sends it to called possession network after network receives service request;
Step 602: after called possession network is received service request, find that the called number that taken place carries, therefore initiate the NPDB inquiry;
Step 603:NPDB returns to called possession network with Query Result (being called routing iinformation);
Comprise LRN in the above-mentioned routing iinformation; If called number is a free code, also comprise CIC in the then above-mentioned routing iinformation.
Step 604: after receiving Query Result, called possession network produces the Event ACR relevant with this NPDB query event, and sends it to CDF; Comprise above-mentioned routing iinformation among this Event ACR;
The purpose that called possession network produces above-mentioned Event ACR is at called possession network with carry between the network and settle accounts; Since belong to newly-increased Event ACR, so increase a kind of definition (being new parameter value) at the Event parameter of SIP_Method field among this Event ACR: " NPDBQuery (inquiry) ", so that distinguish with existing Event ACR.
The information that comprises among the Event ACR includes but not limited to: SIP Method, called number (PN) is initiated NPDB query time (optional), the sign of successful inquiring whether, CIC (only at free code, optional), called routing number (LRN).
Wherein, above-mentioned SIP_Method is used to identify the type of this Event ACR and is: the NPDB inquiry;
Called number (PN) is used for the user of this session correspondence of unique identification;
Initiate the NPDB query time and be used to identify the temporal information of carrying out the NPDB inquiry, be convenient to the follow-up monthly accounting (or pressing week clearing etc.) that carries out.
Step 605: called possession network returns to the professional network of initiating of IMS with called routing iinformation;
The network based called routing iinformation of the professional initiation of step 606:IMS is routed to the called current network that carries with service request; Comprise above-mentioned routing iinformation in this service request;
Step 607: the called current network that carries is carried out receipt (being response message) with business and is sent to the professional network of initiating;
Step 608: the called current network that carries produces ACR, and sends it to CDF by Rf interface;
The called current network that carries need judge that the called number that whether taken place carries when producing ACR, if then add above-mentioned routing iinformation in this ACR.
The professional network of initiating of step 609:IMS produces ACR, and sends it to CDF by Rf interface;
The professional network of initiating of IMS need judge that the called number that whether taken place carries when producing ACR, if then add above-mentioned routing iinformation in this ACR.
Equally, in order correctly in ACR, to add the routing iinformation of called number, the Called Party Address field that defines among the current ACR need be expanded.
In addition, in above-mentioned flow process, if the IMS business is the session related service, the current network that carries of initiating network and called number so also can send follow-up Interim/Stop ACR to CDF.
Called possession network produces the initiation network of Event ACR, IMS business and the method flow diagram that the termination network produces ACR to Fig. 7 under the forward mode in order to call out, and this method comprises the steps:
The professional initiation of step 701:IMS sends it to called possession network after network receives service request;
Step 702: after called possession network is received service request, find that the called number that taken place carries, therefore initiate the NPDB inquiry;
Step 703:NPDB returns to called possession network with Query Result (being called routing iinformation);
Comprise LRN in the above-mentioned routing iinformation; If called number is a free code, also comprise CIC in the then above-mentioned routing iinformation.
Step 704: after receiving Query Result, called possession network produces the Event ACR relevant with this NPDB query event, and sends it to CDF; Comprise above-mentioned routing iinformation among this Event ACR;
Equally, the information that comprises among the Event ACR includes but not limited to: SIP_Method, called number (PN), initiate NPDB query time (optional), the sign of successful inquiring whether, CIC (, optional) only at free code, called routing number (LRN), called possession network identity (optional).
Step 705: the network based above-mentioned routing iinformation in called possession is routed to the called current network that carries with service request;
Step 706: the called current network that carries is carried out receipt (being response message) with business and is sent to the professional network of initiating;
Step 707: the called current network that carries produces ACR, and sends it to CDF by Rf interface;
The called current network that carries need judge that the called number that whether taken place carries when producing ACR, if then add above-mentioned routing iinformation in this ACR.
The professional network of initiating of step 708:IMS produces ACR, and sends it to CDF by Rf interface;
The professional network of initiating of IMS need judge that the called number that whether taken place carries when producing ACR, if then add above-mentioned routing iinformation in this ACR.
Equally, in order correctly in ACR, to add the routing iinformation of called number, the Called Party Address field that defines among the current ACR need be expanded.
In addition, in above-mentioned flow process, if the IMS business is the session related service, the current network that carries of initiating network and called number so also can send follow-up Interim/Stop ACR to CDF.
After Fig. 5～flow process shown in Figure 7, CDF generates charging bill (CDR) according to the ACR that receives, and CDR is sent to the CGF processing; CGF converges and preserves CDR, and CDR is sent to the charging center respectively.
When CDF carries out the ticket structure, Called Party Address field in the ticket need be expanded equally, extended method is identical with Called Party Address AVP among the ACR, expands to the GROUP type, comprise three members: called number, CIC and LRN.
Fig. 8 is the CDR that CGF filters out number portability service, and to its method flow diagram that carries out special distribution processor, comprises the steps:
Step 801:CGF receives the charging CDR that CDF sends;
Step 802:CGF carries attribute (for example, whether comprising LRN etc.) according to the called number that comprises among the CDR, judges whether this CDR is the CDR of number portability service; If not the CDR of number portability service, then jump to step 803; If the CDR of number portability service then jumps to step 804;
Step 803:CGF with CDR be distributed to normal distribution destination (such as, to server or network node that the CDR of common non-number portability service handles, note is done: distribution destination 1); This flow process finishes.
Step 804:CGF with CDR be distributed to special distribution destination (such as, can check numbers and carry server or the network node that professional CDR handles, note is done: distribution destination 2).
According to basic principle of the present invention, can carry out multiple variation to the foregoing description, for example:
(1) owing to the main effect of adding called routing iinformation (for example LRN) in ACR is the ACR that this ACR is designated number portability service, identifies the corresponding network that carries simultaneously; And add LRN only is one of method that realizes above-mentioned purpose, can adopt other identification method (can be called number and carry sign), for example, uses the called current identifier that carries network etc. in ACR.
(2) professionally initiate network, called possession network, calledly currently carry network adds called routing iinformation (for example LRN) respectively in ACR operation and can independently carry out.
For example, can be that the professional network of initiating of IMS adds LRN in ACR, and called possession network, the called current network that carries add.In this case, can realize the accurate billing of calling party at number portability service.The possession network of supposing the callee is GSM (Global System for Mobilecommunication, global system for mobile communications) network, the current network that carries is CDMA (CodeDivision Multiple Access, code division multiple access) network, the calling party adopts different tariff policies at the GSM network with cdma network; If only comprise PN among the ACR that professional initiation network sends, then CDF can only adopt the tariff policies of calling out the GSM network that the calling party is chargeed, if also comprise LRN among the ACR, then CDF can adopt the tariff policies of calling out cdma network that the calling party is chargeed.
Claims (10)
1, the charging method of number portability service in a kind of IP Multimedia System network is characterized in that,
If the initiation network of IP Multimedia System business and/or termination network are judged this professional callee and number have been taken place carried, then add number and carry sign in the charging request that sends to the charging data function entity;
After the charging data function entity receives described charging request, carry sign according to the described number that wherein comprises and know the charging request that described charging request is a number portability service, and described callee carries network under current, and to its processing of chargeing accordingly.
2, the method for claim 1 is characterized in that,
Described number carries and comprises routing number in the sign, and described charging data function entity is known the charging request that described charging request is a number portability service according to routing number, and described callee carries network under current.
3, method as claimed in claim 2 is characterized in that,
If described callee's called number is a free code, then described number carries the Carrier Identification Code that also comprises this called number correspondence in the sign, and described charging data function entity is known described callee's possession network according to Carrier Identification Code.
4, method as claimed in claim 3 is characterized in that,
If described callee's called number is not a free code, then add routing number in the following manner in the request of chargeing: the called party address field extension in the request of will chargeing is called number and two members of routing number;
If described callee's called number is a free code, then add routing number and Carrier Identification Code in the following manner in the request of chargeing: the called party address field extension in the request of will chargeing is called number, routing number and three members of Carrier Identification Code.
5, the method for claim 1 is characterized in that,
After the charging data function entity receives described charging request, check numbers in the following way and carry professional charging request processings of chargeing accordingly: the charging data function entity is according to the charging request generation charging bill that receives, and described charging bill is sent to Charging Gateway Functionality; Comprise routing number in the described charging bill, or comprise routing number and Carrier Identification Code;
Charging Gateway Functionality judges according to whether comprising routing number in the described charging bill whether this charging bill is the charging bill of number portability service, if then send it to the processing of chargeing of corresponding charging center.
6, the charging method of number portability service in a kind of IP Multimedia System network is characterized in that,
The professional callee's of IP Multimedia System possession network carries out the number portability database inquiry after the service request that the initiation network that receives this business sends;
Callee's possession network sends event charging request charging request to charging data function entity charging data function entity; Wherein, comprise in the described charging request: described callee's called number, and be used to identify the number that carry network of described callee under current and carry sign;
After the charging data function entity receives described charging request, carry sign according to described number and know the charging request that described charging request is a number portability service, and described callee carries network under current, and to its processing of chargeing accordingly.
7, method as claimed in claim 6 is characterized in that,
Described number carries and comprises the routing number routing number in the sign; Described charging data function entity is known the charging request that described charging request is a number portability service according to routing number, and described callee carries network under current.
8, method as claimed in claim 7 is characterized in that,
If described callee's called number is a free code, then described number carries the Carrier Identification Code Carrier Identification Code that also comprises this called number correspondence in the sign, and described charging data function entity is known described callee's possession network according to Carrier Identification Code.
9, method as claimed in claim 8 is characterized in that,
Comprise identification parameter in the field of described charging request, being used to identify this charging request is to carry out the charging request that the number portability database inquiry is chargeed;
Also comprise in the described charging request: the time of initiating the number portability database inquiry.
10, method as claimed in claim 6 is characterized in that,
After the charging data function entity receives described charging request, check numbers in the following way and carry professional charging request processings of chargeing accordingly: the charging data function entity is according to the charging request generation charging bill that receives, and described charging bill is sent to Charging Gateway Functionality; Comprise routing number in the described charging bill, or comprise routing number and Carrier Identification Code;
Charging Gateway Functionality judges according to whether comprising routing number in the described charging bill whether this charging bill is the charging bill of number portability service, if then send it to the processing of chargeing of corresponding charging center.
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| CN102065403A (en) * | 2010-12-31 | 2011-05-18 | 杜晓花 | System and method for supporting local number portability |
| CN102143474A (en) * | 2010-12-15 | 2011-08-03 | 华为软件技术有限公司 | Communication method, equipment and system based on converged mobile and fixed networks |
| CN102196397A (en) * | 2010-03-18 | 2011-09-21 | 中兴通讯股份有限公司 | Method and system for improving ticket construction integrity and charging data function |
| CN109274508A (en) * | 2018-09-05 | 2019-01-25 | 杭州东方通信软件技术有限公司 | One kind being based on CMPP agreement charging method and system |
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| CN100384198C (en) * | 2002-11-12 | 2008-04-23 | 华为技术有限公司 | Method for implementing prepayment multimedia message service |
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| CN102196397A (en) * | 2010-03-18 | 2011-09-21 | 中兴通讯股份有限公司 | Method and system for improving ticket construction integrity and charging data function |
| CN102196397B (en) * | 2010-03-18 | 2015-06-03 | 中兴通讯股份有限公司 | Method and system for improving bill record construction integrity and charging data function |
| CN102143474A (en) * | 2010-12-15 | 2011-08-03 | 华为软件技术有限公司 | Communication method, equipment and system based on converged mobile and fixed networks |
| CN102065403A (en) * | 2010-12-31 | 2011-05-18 | 杜晓花 | System and method for supporting local number portability |
| CN102065403B (en) * | 2010-12-31 | 2013-06-26 | 杜晓花 | System and method for supporting local number portability |
| CN109936672A (en) * | 2017-12-15 | 2019-06-25 | 华为软件技术有限公司 | A kind of online charging method and device |
| CN109274508A (en) * | 2018-09-05 | 2019-01-25 | 杭州东方通信软件技术有限公司 | One kind being based on CMPP agreement charging method and system |
| CN109274508B (en) * | 2018-09-05 | 2021-06-18 | 杭州东方通信软件技术有限公司 | Fee deduction method and system based on CMPP (China Mobile protocol) |
| CN109743720A (en) * | 2019-01-04 | 2019-05-10 | 中国联合网络通信集团有限公司 | Call processing method, system and storage medium |
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| CN101309334B (en) | 2011-10-26 |
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