CN101841788B - The methods, devices and systems of forwarded calls - Google Patents

The methods, devices and systems of forwarded calls Download PDF

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Publication number
CN101841788B
CN101841788B CN201010203949.3A CN201010203949A CN101841788B CN 101841788 B CN101841788 B CN 101841788B CN 201010203949 A CN201010203949 A CN 201010203949A CN 101841788 B CN101841788 B CN 101841788B
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described
changed course
network
msc
called subscriber
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CN201010203949.3A
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CN101841788A (en
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关先锋
龙天泳
孙猛
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中兴通讯股份有限公司
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/16Communication-related supplementary services, e.g. call-transfer or call-hold
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/42Systems providing special services or facilities to subscribers
    • H04M3/54Arrangements for diverting calls for one subscriber to another predetermined subscriber
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2207/00Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place
    • H04M2207/12Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place intelligent networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2207/00Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place
    • H04M2207/18Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place wireless networks
    • H04M2207/182Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place wireless networks wireless circuit-switched

Abstract

The invention discloses a kind of methods, devices and systems of forwarded calls, wherein, the method for this forwarded calls comprises: first moving exchanging center MSC at the called subscriber place in first network sends changed course request to the network element in second network; The changed course number of above-mentioned called subscriber is sent to the 2nd MSC at calling subscriber place by said network element according to above-mentioned changed course request; Above-mentioned 2nd MSC carries out forwarded calls according to the above-mentioned changed course number received.The present invention solves forwarded calls flow process of the prior art cannot carry out correct forwarded calls problem under the scene of mixed networking, achieves and carry out correct forwarded calls under the scene of mixed networking.

Description

The methods, devices and systems of forwarded calls

Technical field

The present invention relates to the communications field, in particular to a kind of methods, devices and systems of forwarded calls.

Background technology

As shown in Figure 1, at traditional code division multiple access (Code Division Multiple Access, referred to as " CDMA ") in 2000 communication systems, IN service observes wireless intelligent network (Wireless Intelligent Network, referred to as " WIN ") agreement, user is at attaching position register (Home Location Register, referred to as " HLR ") in signing various IN service trigger, when user's initiation or receipt of call, each trigger point in call-connection process is accomplished to service position point SCP (ServiceControl Point according to signing trigger, referred to as " SCP ") triggering, complete concrete service logic by SCP to control, and indicate mobile switching centre (Mobile Switching Center, referred to as " MSC ") how to carry out next step operation.

As shown in Figure 2, the forwarded calls flow process in existing CDMA2000 communication system comprises the steps:

Step S201: calling subscriber makes a call;

Step S202: the MSC (being called that the beginning exhales MSC) at calling subscriber place identifies that called is mobile subscriber, the HLR to called subscriber's ownership asks called related service information;

Step S203:HLR (or to be called: the MSC at callee place) send route request information to the MSC that lands of user attaching;

Step S204: the MSC that lands returns route request information, carries temporary roaming number TLDN;

Step S205:HLR returns called positional information, carry land MSC distribute TLDN number;

Step S206: beginning to exhale MSC according to this TLDN number, by call proceeding to landing MSC, and then being routed to called subscriber, called subscriber's ring;

Step S207: called subscriber does not answer for a long time, after ringing timeout, the MSC that lands exhales MSC to send changed course request message to the beginning;

Step S208: begin to exhale MSC to ask the changed course number of former called subscriber to HLR;

Step S209:HLR exhales MSC to send the response message carrying changed course number to the beginning;

Step S210: begin to exhale MSC again to continue according to above-mentioned changed course number.

As can be seen from said process, the forward process of user is by HLR recording user changed course number, and forward is carried out in control.

Fig. 3 shows the schematic diagram of IP Multimedia System (IP Multimedia Subsystem, referred to as " IMS ") network and cdma network mixed networking.Under the scene of this mixed networking, the network element of IMS network is utilized to realize the business of various cdma network (hereinafter referred to as C net) user.To be recorded in IMS domain during the service inventory information of these users, these users can open multiple business simultaneously, can realize the nested of multiple business.In this article, this kind of user is referred to as multi-service user.

Under the scene of this mixed networking, the changed course number of called subscriber is not preserved in hlr, thus makes calling subscriber cannot obtain the changed course number of called subscriber according to existing flow process.Because called subscriber is at C net, calling finally can be routed to C net, if called subscriber does not open forward-shifting service on HLR, then after playing the prompt tones such as called subscriber's nonreply to calling subscriber, calling subscriber can think the failure that continues by mistake, on-hook in advance.

As from the foregoing, under the forwarded calls flow process in existing cdma network cannot be applied in the scene of mixed networking, that is, correct forwarded calls cannot be carried out under the scene of mixed networking.

Summary of the invention

Main purpose of the present invention is the methods, devices and systems providing a kind of forwarded calls, cannot carry out correct forwarded calls problem at least to solve forwarded calls flow process of the prior art under the scene of mixed networking.

According to an aspect of the present invention, provide a kind of method of forwarded calls, it comprises: first moving exchanging center MSC at the called subscriber place in first network sends changed course request to the network element in second network; The changed course number of above-mentioned called subscriber is sent to the 2nd MSC at calling subscriber place by said network element according to above-mentioned changed course request; Above-mentioned 2nd MSC carries out forwarded calls according to the above-mentioned changed course number received.

Further, an above-mentioned MSC comprises to the network element transmission changed course request in second network: an above-mentioned MSC obtains the Redirection Information of above-mentioned called subscriber to attaching position register HLR; If the Redirection Information obtained comprises be used to indicate the indication information that above-mentioned called subscriber has above-mentioned changed course number, then an above-mentioned MSC sends above-mentioned changed course request to said network element.

Further, before an above-mentioned MSC sends changed course request to the network element in above-mentioned second network, also comprise: when above-mentioned called subscriber configures above-mentioned changed course number, said network element preserves the mapping relations of above-mentioned changed course number and/or above-mentioned changed course number and above-mentioned called subscriber, and above-mentioned HLR preservation is above-mentioned is used to indicate the indication information that above-mentioned called subscriber has above-mentioned changed course number.

Further, the changed course number of above-mentioned called subscriber sends to the 2nd MSC at above-mentioned calling subscriber place to comprise according to above-mentioned changed course request by said network element: the above-mentioned changed course number of the above-mentioned called subscriber that said network element is preserved according to above-mentioned changed course acquisition request this locality; Above-mentioned changed course number is sent to above-mentioned 2nd MSC by said network element.

Further, said network element is service control point SCP.

Further, above-mentioned first network is Code Division Multiple Access (CDMA) network, and above-mentioned second network is IP Multimedia System IMS network.

According to a further aspect in the invention, provide a kind of device of forwarded calls, it comprises: receiver module, the changed course request that the first moving exchanging center MSC for receiving the called subscriber place in first network sends; Acquisition module, for the changed course number of the above-mentioned called subscriber according to above-mentioned changed course acquisition request this locality preservation; Sending module, for above-mentioned changed course number being sent to the 2nd MSC at calling subscriber place, carries out forwarded calls to make above-mentioned 2nd MSC according to the above-mentioned changed course number received; Wherein, the device of above-mentioned forwarded calls is arranged in the second network different from above-mentioned first network.

Further, the device of above-mentioned forwarded calls is service control point SCP, and above-mentioned first network is Code Division Multiple Access (CDMA) network, and above-mentioned second network is IP Multimedia System IMS network.

According to another aspect of the invention, provide a kind of system of forwarded calls, it comprises: the network element in first moving exchanging center MSC at the called subscriber place in first network, second network, the 2nd MSC at calling subscriber place, wherein, an above-mentioned MSC, for sending changed course request to the network element in second network; Said network element, for sending to above-mentioned 2nd MSC at above-mentioned calling subscriber place by the changed course number of above-mentioned called subscriber according to above-mentioned changed course request; Above-mentioned 2nd MSC, for carrying out forwarded calls according to the above-mentioned changed course number received.

Further, said network element is service control point SCP, and above-mentioned first network is Code Division Multiple Access (CDMA) network, and above-mentioned second network is IP Multimedia System IMS network.

The present invention has following beneficial effect: the present invention is by the changed course authority and number from the network element device record called subscriber in different networks, and calling is triggered to really carry out Service control network to carry out the control of forwarded calls, thus achieve carry out correct forwarded calls under the scene of mixed networking.

Accompanying drawing explanation

Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:

Fig. 1 is the networking schematic diagram of the CDMA2000 network according to correlation technique;

Fig. 2 is the schematic diagram according to the forwarded calls flow process in the CDMA2000 network of correlation technique;

Fig. 3 is the schematic diagram of IMS network according to correlation technique and CDMA2000 network organizing;

Fig. 4 is the flow chart of the method for forwarded calls according to the embodiment of the present invention;

Fig. 5 is preferred flow charts when arranging forward-shifting service according to the multi-service user of the embodiment of the present invention;

Fig. 6 is the preferred flow charts of carrying out forwarded calls according to the multi-service user of the embodiment of the present invention;

Fig. 7 is the structural representation of the device of forwarded calls according to the embodiment of the present invention;

Fig. 8 is the structural representation of the system of forwarded calls according to the embodiment of the present invention.

Embodiment

Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.

Fig. 4 is the flow chart of the method for forwarded calls according to the embodiment of the present invention.As shown in Figure 4, the method for this forwarded calls mainly comprises the steps:

S402, a MSC at the called subscriber place in first network sends changed course request to the network element in second network;

S404, the changed course number of above-mentioned called subscriber is sent to the 2nd MSC at calling subscriber place by said network element according to above-mentioned changed course request.Preferably, calling subscriber can be in first network, the second networking, or other networks.That is, called subscriber can be in identical network with calling subscriber and (such as, all be in CDMA2000 network), or, also can be in different networks (such as, called subscriber is in CDMA2000 network, and calling subscriber is in GSM network, or, PSTN (Public Switched TelephoneNetwork, Public Switched Telephone Network), or, in IMS network);

S406, above-mentioned 2nd MSC carries out forwarded calls according to the above-mentioned changed course number received.

Under the scene of the mixed networking of prior art, changed course authority and the changed course number of called subscriber are not preserved in hlr, thus make in the network of CDMA2000, flow process conventionally cannot obtain the changed course authority of called subscriber, cannot carry out correct forwarded calls like this under the scene of mixed networking.Review the embodiment of the present invention, changed course authority and the changed course number of called subscriber is all recorded by the network element device in the heterogeneous networks of CDMA2000 and IMS, and after turning calling before activation, this changed course number is sent to the IMS network of really carrying out Service control and charging and controlling, thus achieve carry out correct forwarded calls under the scene of mixed networking.

Preferably, an above-mentioned MSC comprises to the network element transmission changed course request in second network: an above-mentioned MSC obtains the Redirection Information of above-mentioned called subscriber to attaching position register HLR; If the Redirection Information obtained comprises be used to indicate the indication information that above-mentioned called subscriber has above-mentioned changed course number, then an above-mentioned MSC sends above-mentioned changed course request to said network element.

Can judge whether called subscriber is configured with changed course authority and changed course number by above-mentioned HLR, only when configuring, a MSC just sends changed course request to the network element in second network, thus optimizes flow process, decreases unnecessary operation.

Preferably, before an above-mentioned MSC sends changed course request to the network element in above-mentioned second network, also comprise: when above-mentioned called subscriber configures above-mentioned changed course number, said network element preserves the mapping relations of above-mentioned changed course number and/or changed course number and called subscriber, and above-mentioned HLR preservation is above-mentioned is used to indicate the above-mentioned indication information that above-mentioned called subscriber has above-mentioned changed course number.

By above-mentioned mode, can be implemented in HLR and preserve on indication information, network element in the second network and preserve changed course number, the transmission of the changed course number in mixed networking can be realized.

Preferably, the changed course number of above-mentioned called subscriber sends to the 2nd MSC at above-mentioned calling subscriber place to comprise according to above-mentioned changed course request by said network element: the above-mentioned changed course number of the above-mentioned called subscriber that said network element is preserved according to above-mentioned changed course acquisition request this locality; Above-mentioned changed course number is sent to above-mentioned 2nd MSC by said network element.

By the above-mentioned changed course number preserving called subscriber in network element this locality, under can be implemented in the scene of mixed networking, carry out correct forwarded calls.

Preferably, said network element is SCP.Preferably, this SCP is with on the AS in second network.In the present invention, the device of above-mentioned preservation and transmission changed course number is SCP, and this is a kind of example, it can also be other devices in second network, such as, MGCF (Media Gateway Control Function, referred to as " MGCF ") entity.By above-mentioned mode, the embodiment of the present invention can be made to be applicable to the scene of SCP.

Preferably, above-mentioned first network is cdma network, and above-mentioned second network is IMS network.Above-mentioned first network and second network are a kind of example of the present invention, and the present invention is not limited only to this, and such as, first network is code division multiple access WCDMA network, and second network is IMS network.By above-mentioned mode, the forwarded calls under CDMA and IMS networking can be realized.

In each above-mentioned embodiment, undertaken by IMS network, in the multiple intelligent industry trigger process of called subscriber, before called number, increasing prefix by IMS network, impelling MSC to be first triggered to SCP according to prefix, control not perform guide service flow process by SCP again, but it is called directly to continue.

In an embodiment of the present invention, forward-shifting service is divided into two parts: a part is that user is when registering Redirection Information, be need all to carry out record at HLR and SCP, wherein only need concerned with user whether to open certain forward-shifting service in HLR, concrete corresponding number is inessential.The various changed course number informations of forward authority and user are recorded in SCP; Another part is, forwarded calls flow process, wherein, by the relevant information of preserving in SCP, changed course number is sent to MSC, carries out forwarded calls to make this MSC by changed course number.The flow process corresponding to above-mentioned two parts is described in detail below in conjunction with accompanying drawing.

Fig. 5 is preferred flow charts when arranging forward-shifting service according to the multi-service user of the embodiment of the present invention.As shown in Figure 5, multi-service user arranges forward-shifting service and mainly comprises the steps:

Step S501: mobile subscriber makes a call, MSC are intelligent subscriber according to the CAMEL-Subscription-Information identification of user, load a series of IN service triggers (only needing a signing trigger in the present embodiment to SCP) that calling subscriber contracts;

Step S502: call treatment is to a certain Calling Side trigging control point, and MSC is according to the list of triggers of loading, and the SCP contracted to calling subscriber sends Trigger message, the forwarding settings information that SCP recording user is arranged;

Step S503:SCP replys response message;

Step S504:MSC continues trigger business modify request messages to the configuration information of HLR, HLR recording user.

Step S505:HLR replys response message.

Fig. 6 is the preferred flow charts of carrying out forwarded calls according to the multi-service user of the embodiment of the present invention.As shown in Figure 6, the flow process that multi-service user carries out forwarded calls comprises the steps:

Step S601: the calling to multi-service user occurs;

Step S602: the mode continued according to multi-service call, calling is connected to IMS domain;

Step S603 ~ S605:IMS network is according to the CAMEL-Subscription-Information of user, mutual with multiple AS successively, carries out the control of multiple business;

Call routing is returned MGCF by step S606:IMS network again, the double gateway exchange doing CDMA 2000 network of this MGCF;

Step S607:MGCF identifies that called is mobile subscriber, and the HLR to called subscriber's ownership asks called related service information, and MGCF is also responsible for process such as the triggerings of the IN process of this multi-service user;

Step S608:HLR sends route request information to the MSC that lands of user attaching;

Step S609: the MSC that lands distributes temporary roaming number TLDN, returns route request information, carry temporary roaming number TLDN to HLR;

Step S610:HLR returns called positional information, carry land MSC distribute TLDN number;

Step S611:MSC according to this TLDN number, by the office of call proceeding to called subscriber place, called terminal ringing;

Step S612: called subscriber does not answer for a long time, after ringing timeout, according to the business list that user obtains from HLR, finds that this user has opened Call Forwarding No Reply, then exhale MSC to the beginning, and namely MGCF sends changed course request;

Step S613:MGCF is now different with the process in traditional CDMA 2000, no longer asks called number to HLR, but replys unsuccessfully to IMS domain, carry the reason of the failure that continues;

Continuing of forward, according to the forward authority of record in SCP (AS) and changed course number, is carried out in step S614:IMS territory, and the calling of release to former called subscriber.

Present invention also offers a kind of embodiment of device of forwarded calls, it can use the method for the forwarded calls described in above-described embodiment.As shown in Figure 7, the device according to the forwarded calls of the embodiment of the present invention comprises: receiver module 702, the changed course request that the first moving exchanging center MSC for receiving the called subscriber place in first network sends; Acquisition module 704, for the changed course number of the above-mentioned called subscriber according to above-mentioned changed course acquisition request this locality preservation; Sending module 706, for above-mentioned changed course number being sent to the 2nd MSC at calling subscriber place, carries out forwarded calls to make above-mentioned 2nd MSC according to the above-mentioned changed course number received; Wherein, the device of above-mentioned forwarded calls is arranged in the second network different from above-mentioned first network.

The embodiment of the present invention is by the changed course number of the network element device record called subscriber in the network different from the network of calling subscriber and called subscriber place, and after turning calling before activation, this changed course number is sent to calling subscriber, thus achieve carry out correct forwarded calls under the scene of mixed networking.

Preferably, calling subscriber can be in first network, the second networking, or other networks.That is, called subscriber can be in identical network with calling subscriber and (such as, all be in CDMA2000 network), or, also can be in different networks (such as, called subscriber is in CDMA2000 network, and calling subscriber is in GSM network, or, PSTN (Public Switched Telephone Network, Public Switched Telephone Network), or, in IMS network).

Preferably, the device of above-mentioned forwarded calls is service control point SCP, and above-mentioned first network is Code Division Multiple Access (CDMA) network, and above-mentioned second network is IP Multimedia System IMS network.By above-mentioned mode, the forwarded calls under CDMA and IMS networking can be realized.

Preferably, in said apparatus embodiment, an above-mentioned MSC obtains the Redirection Information of called subscriber to attaching position register HLR; If the Redirection Information obtained comprises be used to indicate the indication information that above-mentioned called subscriber has above-mentioned changed course number, then a MSC sends above-mentioned changed course request to the device of above-mentioned forwarded calls.

Preferably, device from an above-mentioned MSC to above-mentioned forwarded calls send changed course request before, when above-mentioned called subscriber configures above-mentioned changed course number, the device of above-mentioned forwarded calls preserves the mapping relations of above-mentioned changed course number and/or above-mentioned changed course number and above-mentioned called subscriber, and above-mentioned HLR preservation is above-mentioned is used to indicate the indication information that above-mentioned called subscriber has above-mentioned changed course number.

Preferably, the changed course number of above-mentioned called subscriber sends to the 2nd MSC at above-mentioned calling subscriber place to comprise according to above-mentioned changed course request by sending module 706: the above-mentioned changed course number of the above-mentioned called subscriber that sending module 706 is preserved according to above-mentioned changed course acquisition request this locality; Above-mentioned changed course number is sent to above-mentioned 2nd MSC by sending module 706.

Present invention also offers a kind of embodiment of system of forwarded calls, it can use the method for the forwarded calls described in above-described embodiment.As Fig. 8 is above-mentioned, the system of this forwarded calls comprises: the network element 804 in the MSC 802 at the called subscriber place in first network, second network, the 2nd MSC 806 at calling subscriber place, wherein, an above-mentioned MSC802, for sending changed course request to the network element in second network; Said network element 804, for sending to the 2nd MSC at above-mentioned calling subscriber place by the changed course number of above-mentioned called subscriber according to above-mentioned changed course request; Above-mentioned 2nd MSC 806, for carrying out forwarded calls according to the above-mentioned changed course number received.

The embodiment of the present invention is by the changed course number of the network element device record called subscriber in the network different from the network of calling subscriber and called subscriber place, and after turning calling before activation, this changed course number is sent to calling subscriber, thus achieve carry out correct forwarded calls under the scene of mixed networking.

Preferably, in said system embodiment, a MSC 802 obtains the Redirection Information of called subscriber to attaching position register HLR; If the Redirection Information obtained comprises be used to indicate the indication information that above-mentioned called subscriber has above-mentioned changed course number, then a MSC 802 sends above-mentioned changed course request to network element 804.

Preferably, before a MSC 802 sends changed course request to network element 804, when above-mentioned called subscriber configures above-mentioned changed course number, network element 804 preserves the mapping relations of above-mentioned changed course number and/or above-mentioned changed course number and above-mentioned called subscriber, and above-mentioned HLR preservation is above-mentioned is used to indicate the indication information that above-mentioned called subscriber has above-mentioned changed course number.

Preferably, the changed course number of above-mentioned called subscriber sends to the 2nd MSC 806 at above-mentioned calling subscriber place to comprise according to above-mentioned changed course request by network element 804: the above-mentioned changed course number of the above-mentioned called subscriber that network element 804 is preserved according to above-mentioned changed course acquisition request this locality; Above-mentioned changed course number is sent to the 2nd MSC 806 by network element 804.

Preferably, above-mentioned calling subscriber can be in first network, the second networking, or other networks.That is, called subscriber can be in identical network with calling subscriber and (such as, all be in CDMA2000 network), or, also can be in different networks (such as, called subscriber is in CDMA2000 network, and calling subscriber is in GSM network, or, PSTN (Public Switched Telephone Network, Public Switched Telephone Network), or, in IMS network).

Preferably, said network element 804 is service control point SCP, and above-mentioned first network is cdma network, and above-mentioned second network is IP Multimedia System IMS network.By above-mentioned mode, the forwarded calls under CDMA and IMS networking can be realized.

Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.

The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (8)

1. a method for forwarded calls, is characterized in that, comprising:
First moving exchanging center MSC at the called subscriber place in first network sends changed course request to the network element in second network;
The changed course number of described called subscriber is sent to the 2nd MSC at calling subscriber place by described network element according to described changed course request;
Described 2nd MSC carries out forwarded calls according to the described changed course number received;
Wherein, a described MSC comprises to the network element transmission changed course request in second network: a described MSC obtains the Redirection Information of described called subscriber to attaching position register HLR; If the Redirection Information obtained comprises be used to indicate the indication information that described called subscriber has described changed course number, then a described MSC sends described changed course request to described network element;
Wherein, before a described MSC sends changed course request to the network element in described second network, also comprise: when described called subscriber configures described changed course number, described network element preserves the mapping relations of described changed course number and/or described changed course number and described called subscriber, is used to indicate the indication information that described called subscriber has described changed course number described in described HLR preserves.
2. method according to claim 1, is characterized in that, the changed course number of described called subscriber sends to the 2nd MSC at described calling subscriber place to comprise according to described changed course request by described network element:
The described changed course number of the described called subscriber that described network element is preserved according to described changed course acquisition request this locality;
Described changed course number is sent to described 2nd MSC by described network element.
3. method according to claim 1 and 2, is characterized in that, described network element is service control point SCP.
4. method according to claim 1 and 2, is characterized in that, described first network is Code Division Multiple Access (CDMA) network, and described second network is IP Multimedia System IMS network.
5. a device for forwarded calls, is characterized in that, comprising:
Receiver module, the changed course request that the first moving exchanging center MSC for receiving the called subscriber place in first network sends;
Acquisition module, for the changed course number of the described called subscriber according to described changed course acquisition request this locality preservation;
Sending module, for described changed course number being sent to the 2nd MSC at calling subscriber place, carries out forwarded calls to make described 2nd MSC according to the described changed course number received;
Wherein, the device of described forwarded calls is arranged in the second network different from described first network;
Wherein, described receiver module is also for changed course request that first moving exchanging center MSC at the called subscriber place received in first network by following steps is sent: a described MSC from the Redirection Information that attaching position register HLR obtains comprise be used to indicate described called subscriber there is the indication information of described changed course number time, receive the described changed course that a described MSC sends and ask;
Wherein, the device of described forwarded calls also for: send before described changed course asks at the described MSC of reception, when described called subscriber configures described changed course number, preserve the mapping relations of described changed course number and/or described changed course number and described called subscriber.
6. device according to claim 5, is characterized in that, the device of described forwarded calls is service control point SCP, and described first network is Code Division Multiple Access (CDMA) network, and described second network is IP Multimedia System IMS network.
7. a system for forwarded calls, is characterized in that, comprising: the network element in first moving exchanging center MSC at the called subscriber place in first network, second network, the 2nd MSC at calling subscriber place, wherein,
A described MSC, for sending changed course request to the network element in second network;
Described network element, for sending to described 2nd MSC at described calling subscriber place by the changed course number of described called subscriber according to described changed course request;
Described 2nd MSC, for carrying out forwarded calls according to the described changed course number received;
Wherein, a described MSC is used for sending described changed course request by following steps to the described network element in described second network: the Redirection Information obtaining described called subscriber to attaching position register HLR; If the Redirection Information obtained comprises be used to indicate the indication information that described called subscriber has described changed course number, then send described changed course request to described network element;
Wherein, described network element also for: to send to described network element before described changed course asks at a described MSC, when described called subscriber configures described changed course number, preserve the mapping relations of described changed course number and/or described changed course number and described called subscriber.
8. system according to claim 7, is characterized in that, described network element is service control point SCP, and described first network is Code Division Multiple Access (CDMA) network, and described second network is IP Multimedia System IMS network.
CN201010203949.3A 2010-06-12 2010-06-12 The methods, devices and systems of forwarded calls CN101841788B (en)

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