CN100466856C - Internet protocal carried voice user accessing method, positioning device and network equipment - Google Patents

Internet protocal carried voice user accessing method, positioning device and network equipment Download PDF

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Publication number
CN100466856C
CN100466856C CNB2007100008836A CN200710000883A CN100466856C CN 100466856 C CN100466856 C CN 100466856C CN B2007100008836 A CNB2007100008836 A CN B2007100008836A CN 200710000883 A CN200710000883 A CN 200710000883A CN 100466856 C CN100466856 C CN 100466856C
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China
Prior art keywords
mobile terminal
voice user
terminal number
positional information
internet protocal
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Expired - Fee Related
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CNB2007100008836A
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Chinese (zh)
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CN101001468A (en
Inventor
施洋
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Abstract

This invention discloses a localizing device including: a linking-up module used in linking up with phone user information and at least one mobile terminal number loaded by an internetwork protocol and storing the corresponding relation between the information and the number, a location information obtaining module used in getting the location information of the mobile terminal number corresponding to the phone user information loaded by the interntwork protocol based on said information, in addition to that, this invention also provides an access method, a localizing server and session initialized protocol server of internetwork protocol carried phone users.

Description

Internet protocal carried voice user accessing method, positioner and the network equipment
Technical field
The present invention relates to the communications field, especially, relate to a kind of internet protocal carried voice (Voice over IP, VoIP) user access method, positioner and the network equipment.
Background technology
VoIP (Voice over IP, Voice over IP) is born during the last ten years, and with the application infiltration to carrier-class of the product form of soft switch, to enterprise voice communication infiltration, everything has had a deep effect on people's communication mode with the equipment mode of IP-PBX.
VoIP can realize roaming easily, by user's logical address (logical identifiers such as telephone number, user account number) or contact address (as the IP address), thereby can insert the roaming that realizes between different regions in different regions easily.For example, SkyPe user uses account number in computers log-on arbitrarily, is all called out at an easy rate; In addition, mobile IP technology also receives publicity day by day in recent years, and it makes mobile device to enter the Internet with fixed IP addresses, and can be addressed.
But, the voip call Control Server can not be determined the geographical position of user access point, PSTN (Pubic SwitchedTelephone Network is called out for the IP user in the geographical position of user access point, public switched telephone network (PSTN)) service number is treated in the territory, it is particularly important to seek correct nearest route, and this concentrated reflection is handled on the ability of emergence call service at the voip network side apparatus.In addition, the voip user needs to determine local subscriber's on-position equally when the PSTN user of outbound call this locality, carry out outbound call so that utilize the IP bypath principle to be routed to nearest media gateway.But all do not have basically in the industry by the caller location being gone to support the parsing of outgoing route, SkyPe also is like this.
At present, it is to realize by complete dial mode that the outgoing route that SkyPe supports is resolved, decide the out suitable gateway SkyPeOut that lands that calls out by the resolving called number, thereby realize the IP bypass, as shown in Figure 1, the user dials national this area PSTN user by the SkyPe client software, need SkyPe to land the support of gateway SkyPeOut in this area: (1) uses the SkyPe client software, national this area PSTN user is called out in subscriber dialing, dial mode is+A national code+B area code+PSTN base number, or 00+A national code+B area code+PSTN base number, receive this call request at the SkyPe server S kyPe in C state D area Server; (2) SkyPe Server call server is according to the parsing of called number, and the SkyPe Out that call request is routed to A state B area lands gateway; (3) by SkyPe Out gateway calling is relayed to the PSTN territory, initiates calling for PSTN user.SkyPe analyzes called route by resolving for the number of called address, so it has changed user's outbound dial custom, promptly local outbound call need add and dial national code, area code; The support of SkyPe Out gateway must be arranged in the destination for the calling of any striking out in addition.
At traditional GSM (Global System for Mobile Communications, global system for mobile communications) during user's outbound call PSTN user, dial mode does not add regional prefix and represents that this is local outbound call, this point is along with GSM user changed in when roaming, as shown in Figure 2, the mobile subscriber Mobile in visit territory calls out local PSTN user, as long as dial-in direct, do not need belt length way prefix, this is owing to taken over the business that roams into local portable terminal at the moving exchanging center MSC in visit territory, and gsm system makes the user call out local striking out when roaming in various places the landing of each region (each region all disposes MSC) need not change length, the custom of short distance dialing.
The voip call Control Server is when resolving the route of an outbound call request, at first depend on analysis for called number, if having complete location prefix (national code, area code) then according to number calling is relayed to suitable media gateway easily, called number continues, suppose that number does not have complete prefix, then think local call, it is routed directly to local media gateway with calling so, at this time needs the position of determining that caller inserts.If perhaps can as SkyPe, force users use the mode of complete dialing to avoid the location that caller is inserted for common outbound call, when urgent call, do such regulation so and then go too far.
Because the call control server of VoIP is not as MSC (the MobileSwitching Center of gsm system, mobile switching centre) lands in each region, therefore for the outbound call request of this locality of all receptions, if there is not complete dialing information, then must locate and analyze correct calling route, and the location that the dial-in direct demand during urgent call also makes caller insert seems more urgent by the access of caller.
In present related art scheme, EC (control, handle the server of urgent call) can't resolve the optimum route of calling out from the analysis of called number, and can only reach from the location of caller, administering and maintaining for the positional information of caller access point must be added by the entire process system like this, below be the solution of prior art for the VoIP urgent call, as shown in Figure 3, access device is meant that user terminal taps into the equipment of network, it can be a network interface card, ADSL, or DSLAM (Digital Subscriber Line AccessMultiplexer, Digital Subscriber Line Access Multiplexer) port, and IAD (IntegratedAccess Device, integrated access equipment) equipment.In traditional urgent call solution the inside, EC triggers the access request to location-server when receiving emergency call request, request inserts the location to caller, the physical address of location-server by obtaining inserting after mutual with incoming end, determine suitable PSAP (Public Safety Accessed Point by the physical address corresponding geographical location information of positioning server stores then, the public safety accessing points), then EC can be to this PSAP junction call.
As mentioned above, the prior art scheme needs the additional maintenance location-server, because the VoIP location-server does not have MSC (the MobileSwitching Center of moving communication system of image drift such as gsm system, mobile switching centre) lands in each region, need constantly to increase the physical address corresponding geographical location information of this location-server, the existing access device of renewal, therefore management, maintenance cost height.
Summary of the invention
The embodiment of the invention is devoted to overcome the one or more inherent shortcomings in the above-mentioned correlation technique, for this reason, the embodiment of the invention provides a kind of positioner, a kind of voip user's cut-in method, a kind of location-server and a kind of conversation initialized protocol server.
The invention provides a kind of positioner, comprising: be affiliated to module, be used to be affiliated to internet protocal carried voice user and at least one mobile terminal number, the corresponding relation of storage internet protocal carried voice user profile and mobile terminal number; Position information acquisition module is used for the positional information according to internet protocal carried voice user profile acquisition internet protocal carried voice user profile corresponding mobile terminal number.
Embodiments of the invention provide a kind of internet protocal carried voice user accessing method, comprising: the corresponding relation that sets in advance and preserve internet protocal carried voice user profile and mobile terminal number; After the conversation initialized protocol server receives and carries the call request of internet protocal carried voice user profile, from call request, resolve internet protocal carried voice user profile; According to the corresponding relation of internet protocal carried voice user profile and mobile terminal number, the conversation initialized protocol server obtains the positional information of internet protocal carried voice user profile corresponding mobile terminal number; The conversation initialized protocol server inserts public safety joint point according to the positional information that obtains.
Embodiments of the invention provide a kind of location-server, comprising: receiving system is used to receive the Location Request of carrying internet protocal carried voice user profile that the initial session protocol server sends; Device for hanging and supporting is used to be affiliated to internet protocal carried voice user and at least one mobile terminal number, the corresponding relation of storage internet protocal carried voice user profile and mobile terminal number; The positional information deriving means is used for the positional information according to internet protocal carried voice user profile acquisition internet protocal carried voice user corresponding mobile terminal number; Return mechanism is connected to positioner, is used for the positional information that obtains to initial session protocol server restoring to normal position device.
The embodiment of the invention also provides a kind of conversation initialized protocol server, comprise: receiver module, be used to receive the call request of carrying internet protocal carried voice user profile that the internet protocal carried voice user sends, the internet protocal carried voice user has been affiliated at least one mobile terminal number in advance; Position information acquisition module is used for obtaining according to internet protocal carried voice user profile the positional information of the mobile terminal number that the internet protocal carried voice user is affiliated to; And access module, be used for being linked into public safety joint point according to positional information.
By above technical scheme, the embodiment of the invention has realized following beneficial effect: (the Mobile Switching Center of mobile switching centre that makes full use of mobile communication system (as gsm system or cdma system), MSC) land in each region, the internet protocal carried voice user is affiliated at least one mobile terminal number, positional information by this mobile terminal number of being affiliated to is determined the internet protocal carried voice user position information, the realization of location is more economical, convenient, can not need additional configuration, management maintenance is similar to attaching position register and the Visited Location Registor in the mobile communication system, can guarantee when the internet protocal carried voice user roams, to obtain easily location updating message, realize the calling in local PSTN territory is obtained optimum route and saves telephone expenses.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and exemplary embodiment of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is that the resolving called number that passes through according to correlation technique decides the out suitable gateway SkyPe Out that lands that calls out, thereby realizes the schematic diagram of IP bypass;
Fig. 2 is a schematic diagram of calling out local PSTN (Pubic Switched Telephone Network, public switched telephone network (PSTN)) user's dial mode according to the mobile subscriber in the visit territory of correlation technique;
Fig. 3 is the schematic diagram for the solution of VoIP urgent call according to correlation technique;
Fig. 4 is the flow chart according to voip user's cut-in method of the inventive method embodiment;
Fig. 5 is the mutual schematic diagram of HLR and location-server;
Fig. 6 is the flow chart of the mutual targeting scheme of HLR and location-server;
Fig. 7 is a system architecture schematic diagram of realizing voip user's access point localization method of the method according to this invention embodiment;
Fig. 8 is the flow chart according to SIPServer (IP-PBX) decision logic in voip user's cut-in method of the inventive method embodiment;
Fig. 9 is the system architecture schematic diagram of an example of realizing voip user's access point localization method of the method according to this invention embodiment;
Figure 10 is the block diagram according to the positioner of present device embodiment one;
Figure 11 is the block diagram according to the location-server of present device embodiment two; And
Figure 12 is the block diagram according to the conversation initialized protocol server of present device embodiment three.
Embodiment
Specifically describe the preferred embodiments of the present invention hereinafter with reference to accompanying drawing, wherein, accompanying drawing constitutes the application's a part, and is used from explaination principle of the present invention with embodiments of the invention one.
The essence of all embodiment of the present invention is: the voip user is affiliated at least one mobile terminal number, the positional information of this mobile terminal number that the mobile switching centre under the mobile terminal number that the voip user is affiliated to provides is as voip user's positional information, thereby realizes voip user's location.Utilize this thought, the location register that can make full use of existing mobile communication system extensively lands in each region, thereby economizes on resources.
Wherein, the voip user is affiliated at least one mobile terminal number, the voip user also can be affiliated to a plurality of mobile terminal numbers, such as voip network provides a plurality of numbers of user to select, for the user who carries two mobile phones, the voip user can select to be affiliated to two phone numbers, selects one of them as commonly used, and another is as alternative.
Wherein, because voip network and mobile operator have contracted the business of positional information are provided, when the mobile terminal number position that the voip user is affiliated to is upgraded, mobile switching centre under this mobile terminal number can initiatively offer voip network with the positional information of upgrading, also can be by voip network when the needs positional information or regularly upgrade positional information to the request of affiliated mobile switching centre.The mobile operator here can be gsm system operator, also can be cdma system operator, can also be for other operator of location information services can be provided.
Wherein, voip network can also be kept at the acquisition positional information on the existing device or be kept on the special equipment (as location-server), these equipment have the basic acquisition positional information or the function of inquiring position information, can also have the function of renewal, deletion, maintenance management user profile and positional information.
Method embodiment one
With reference to Fig. 4, Fig. 5 and Fig. 6 present embodiment is described below.Fig. 4 is the flow chart according to the positioning interaction method of present embodiment.
As shown in Figure 4, when the voip user is affiliated at least one mobile terminal number, and when the voip network side is preserved the corresponding relation of voip user's information and this mobile terminal number, voip user's access process may further comprise the steps: step S402, voip user send the call request of carrying voip user's information to the conversation initialized protocol server; Step S404 after the conversation initialized protocol server receives this call request, parses this voip user's information from this call request, the mobile terminal number of being affiliated to according to the voip user obtains voip user's positional information; And step S406, the conversation initialized protocol server inserts public safety joint point according to the positional information that obtains.
Wherein, mobile switching centre under the mobile terminal number that the conversation initialized protocol server is affiliated to from the voip user, obtain the positional information of mobile terminal number as the attaching position register of gsm system mobile switching centre, the conversation initialized protocol server is with the positional information of the mobile terminal number positional information as the voip user.
Preferably, before step S402, can also comprise the interaction process of location-server and attaching position register, this processing may further comprise the steps: the service of the signatory positioning service of IP switch and service provider; And the IP exchanger user is affiliated to a mobile terminal number; When the position of portable terminal was upgraded, location-server received the access information of being affiliated to mobile terminal user that attaching position register sends, and carried out the on-position according to access information and upgraded; And after the renewal of location-server completing place, return the renewal acknowledge message to attaching position register.
Wherein, the mobile terminal number based on the voip user is affiliated to when the mobile terminal number position is upgraded, upgrades IP user's positional information by the mobile switching centre under voip user's information corresponding mobile terminal number.
Wherein, carry the area code information of the position of the portable terminal of representing that the voip user is affiliated in the positional information.
In conjunction with method according to present embodiment, when reality is implemented, can initiatively send location update message by mobile operator to the voip network side apparatus, perhaps the voip network side apparatus regularly sends position updating request to mobile operator, with the positional information that obtains to upgrade, the voip network side apparatus is according to the positional information that corresponding relation provides storage of being affiliated to of preserving afterwards.Wherein, the conventional network equipment that the corresponding relation of voip user, mobile terminal number and mobile terminal number positional information can be stored in the voip network side (for example, the conversation initialized protocol server) in, also can with one independently the location-server unification provide, management position information (for example, roamer's positional information), thus saved the time.
Alternatively, the voip network side apparatus is initiatively to mobile operator inquiring position information, when the voip network side apparatus needs voip user's positional information, send location information request to mobile operator, operator returns corresponding positional information according to contract signing relationship afterwards.At this moment, mobile operator needn't safeguard special location server or positioner, and the time only in needs, obtain corresponding positional information, thereby saved resource.
And, as shown in Figure 5 and Figure 6, the HLR that the location-server that belongs to VoIP system is subordinated to gsm system obtains information, HLR sends the information (area code of this user region correspondence) of reposition based on gsm system to location-server, and location-server responds this request and IP user's access-in point information is upgraded; This interactive relation can be finished by short message or form such as make a call, and VoIP system is signed the agreement of positioning service in advance with the GSM carrier.Alternatively, for realizing the mutual of message, also can be by being SIM card of location-server configuration, communicate with wireless system by wireless terminal interface etc., location-server or positioner are carried out the parsing of interactive information, the acquisition positional information.In Fig. 5,, comprise the area code information of region, user place so Req:HLR sends the positioned update request to location-server; Rps: location-server sends the renewal affirmation to HLR after upgrading access information.
Wherein, can be described below Fig. 6:
(1) service of the signatory positioning service of IP-PBX and GSM carrier; (2) IP-PBX user is affiliated to a GSM mobile termination number; (3) message that HLR receives, the processing terminal position is upgraded; (4) HLR is affiliated to the IP-PBX user's of this terminal access information to location-server report; (5) location-server carries out the renewal of access information; (6) location-server sends and upgrades acknowledge message.
For example: 28781001 user 2006-8-22 mornings, the access information table of location-server was as follows in Beijing:
The voip user Region, voip user place area code (access information) The GSM number that this user is affiliated to
28781001 010 13715828498
28781002 0571 13516827456
28781002 0755 13475528917
28781001 user 2006-8-22 afternoons are in Hangzhou: the access information table of location-server is as follows:
The voip user Region, voip user place area code (access information) The GSM number that this user is affiliated to
28781001 0571 13715828498
28781002 0571 13516827456
28781002 0755 13475528917
With reference to the system architecture schematic diagram of caller location solution shown in Figure 7, the method according to present embodiment can be summarised as following steps: (1) sends call request to SIP Server (IP-PBX); (2) if out do not call out or urgent call, inquire about to location-server request area code so with the PSTN of prefix; (3) obtain area code; (4) select optimum Trunk Media Gateway MGW according to area code; And this call request of (5) MGW relaying.Wherein, SIP Server (IP-PBX) decision logic as shown in Figure 8.
Below with reference to a concrete case description method embodiment of the present invention.
Fig. 9 shows the system architecture that realizes this example.As shown in Figure 9, implementation step is as follows: (1) sends call request to SIP Server (IP-PBX); (2) if out do not call out or urgent call, inquire about to location-server request area code so with the PSTN of prefix; (3) obtain area code; (4) select optimum Trunk Media Gateway MGW according to area code; And this call request of (5) MGW relaying.
Apparatus embodiments one
Figure 10 shows the composition according to the positioner 1000 of apparatus embodiments one.As shown in figure 10, the positioner 1000 according to the embodiment of the invention comprises: be affiliated to module 1002, be used to be affiliated to voip user's information and at least one mobile terminal number, and store the corresponding relation of voip user's information and mobile terminal number; Position information acquisition module 1004 is used for the positional information according to voip user's information acquisition voip user information corresponding mobile terminal number; And positional information memory module 1006, be used for the corresponding relation of memory mobile terminal number and positional information.
Wherein, position information acquisition module 1004 comprises: short message receives module, is used to receive the short message that comprises mobile terminal number homing position information that public land mobile switching centre sends; The short message parsing module is used for parsing from short message the positional information of mobile terminal number.
Wherein, positioner 1000 also comprises update module 1008, is used for when voip user's information corresponding mobile terminal number position is upgraded, and upgrades the positional information in the position information storage module 1006.
Preferably, positional information memory module 1006 can be arranged in the equipment of operator's management, so that communicating by letter between voip network side apparatus and the mobile operator, thereby make the positional information that the easier acquisition of voip network side apparatus is upgraded, thereby saved the time of operation, can preserve the corresponding relation of voip user's information and positional information, voip user's information, the mobile terminal number of being affiliated to and positional information three's corresponding relation can also be kept in the same table.
Apparatus embodiments two
Below with reference to the location-server 1100 of Figure 11 description according to apparatus embodiments two of the present invention.Figure 11 is the block diagram according to the location-server 1100 of present embodiment.
As shown in figure 11, the location-server 1100 according to present embodiment comprises: receiving system 1102 is used to receive the Location Request of carrying voip user's information that the initial session protocol server sends; Device for hanging and supporting 1104 is used to be affiliated to voip user's information and at least one mobile terminal number, the corresponding relation of storage voip user's information and mobile terminal number; Positional information deriving means 1106 is used for the positional information according to voip user's information acquisition voip user corresponding mobile terminal number; Return mechanism 1108 is connected to positional information deriving means 1106, is used for the positional information that obtains to initial session protocol server home position information acquisition device 1106.
Wherein, location-server can belong to for example VoIP system, and attaching position register can belong to for example gsm system.Above-mentioned positional information can be the corresponding area code in zone at user place.Can finish by short message or form such as make a call alternately between location-server and the attaching position register.
Between location-server and the attaching position register alternately can be with reference to figure 6 and Fig. 7.
Apparatus embodiments three
As shown in figure 12, conversation initialized protocol server 1200 according to present embodiment comprises: receiver module 1202, be used to receive the call request of carrying voip user's information that the voip user sends, wherein, the voip user has been affiliated at least one mobile terminal number in advance; Position information acquisition module 1204 is used for the positional information of the mobile terminal number of being affiliated to according to voip user's information acquisition voip user; Access module 1206 is used for being linked into public safety joint point according to positional information.
Wherein, position information acquisition module 1204 comprises: first memory module is used to store voip user's information and the corresponding relation of the mobile terminal number of being affiliated in advance; Short message receives module, is used to receive the short message of the positional information that comprises mobile terminal number that the mobile switching centre under voip user's information corresponding mobile terminal number sends; And the short message parsing module, be used for parsing the positional information of mobile terminal number from short message.
And position information acquisition module 1204 comprises: sending module is used for sending the Location Request that comprises voip user's information to location-server; And receiver module, be used to receive the positional information that location-server returns; Wherein, location-server is according to voip user's information acquisition of receiving and return the positional information of the mobile terminal number that the voip user is affiliated to.
By above-mentioned embodiment of the present invention, can make the realization of location more economical, make things convenient for, and can guarantee when the voip user roams, not change in the long and short way dialing custom, realize the calling in local PSTN territory is obtained optimum route and saves telephone expenses.
In addition, the scheme of utilizing embodiments of the invention to provide, during urgent call, it is mutual that EC does not need to carry out secondary by location-server and incoming end; Can shorten the call treatment time-delay of urgent call; In addition, can realize locating the common outbound call of not being with prefix, overcome the problem that as SkyPe common outbound call must add the dial area code prefix.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. a positioner is characterized in that, comprising:
Be affiliated to module, be used to be affiliated to internet protocal carried voice user and at least one mobile terminal number, store the corresponding relation of described internet protocal carried voice user profile and described mobile terminal number;
Position information acquisition module is used for obtaining according to described internet protocal carried voice user profile the positional information of described internet protocal carried voice user profile corresponding mobile terminal number;
The positional information memory module is used to store the corresponding relation of described mobile terminal number and described positional information.
2. positioner according to claim 1 is characterized in that, described positioner also comprises:
Update module is used for upgrading the described positional information in the described positional information memory module when described internet protocal carried voice user profile corresponding mobile terminal number position is upgraded.
3. positioner according to claim 1 and 2 is characterized in that, described position information acquisition module comprises:
Short message receives module, is used to receive the short message of the positional information that comprises described mobile terminal number that public land mobile switching centre sends;
The short message parsing module is used for parsing from described short message the positional information of described mobile terminal number.
4. an internet protocal carried voice user accessing method is characterized in that, comprises following processing:
Set in advance and preserve the corresponding relation of internet protocal carried voice user profile and mobile terminal number;
After the conversation initialized protocol server receives and carries the call request of described internet protocal carried voice user profile, from described call request, resolve described internet protocal carried voice user profile;
Corresponding relation according to described internet protocal carried voice user profile and mobile terminal number, described conversation initialized protocol server obtains the positional information of the corresponding described mobile terminal number that the mobile switching centre under the described mobile terminal number provides, and then obtains the positional information of described internet protocal carried voice user profile corresponding mobile terminal number;
Described conversation initialized protocol server inserts public safety joint point according to the positional information that obtains.
5. internet protocal carried voice user accessing method according to claim 4 is characterized in that,
The corresponding relation of described internet protocal carried voice user profile and mobile terminal number is kept in the described conversation initialized protocol server in advance;
Described conversation initialized protocol server obtains described internet protocal carried voice user profile corresponding mobile terminal number according to described internet protocal carried voice user profile.
6. internet protocal carried voice user accessing method according to claim 4 is characterized in that,
Described internet protocal carried voice user profile and mobile terminal number corresponding relation are kept in the location-server in advance;
Described conversation initialized protocol server sends the Location Request of carrying described internet protocal carried voice user profile to described location-server;
After described location-server receives described Location Request, obtain the positional information of the corresponding described mobile terminal number that the mobile switching centre under the described internet protocal carried voice user profile corresponding mobile terminal number provides according to described internet protocal carried voice user profile, will obtain described positional information and return to described conversation initialized protocol server.
7. internet protocal carried voice user accessing method according to claim 5 is characterized in that, carries the area code information of the position of the described internet protocal carried voice user corresponding mobile terminal number of expression in the described positional information.
8. a location-server is characterized in that, comprising:
Receiving system is used to receive the Location Request of carrying internet protocal carried voice user profile that the initial session protocol server sends;
Device for hanging and supporting is used to be affiliated to described internet protocal carried voice user and at least one mobile terminal number, stores the corresponding relation of described internet protocal carried voice user profile and described mobile terminal number;
The positional information deriving means is used for obtaining described internet protocal carried voice user corresponding mobile terminal number according to described internet protocal carried voice user profile, and further obtains the positional information of described mobile terminal number;
Return mechanism is connected to described positional information deriving means, is used for returning the described positional information that described positional information deriving means obtains to described initial session protocol server;
The positional information memory module is used to store the corresponding relation of described mobile terminal number and described positional information.
9. a conversation initialized protocol server is characterized in that, comprising:
Receiver module is used to receive the call request of carrying internet protocal carried voice user profile that the internet protocal carried voice user sends, and wherein, described internet protocal carried voice user has been affiliated at least one mobile terminal number in advance;
Position information acquisition module is used for obtaining according to described internet protocal carried voice user profile the positional information of the mobile terminal number that described internet protocal carried voice user is affiliated to;
Access module is used for being linked into public safety joint point according to described positional information;
Wherein, described position information acquisition module comprises:
First memory module is used to store described internet protocal carried voice user profile and the corresponding relation of the mobile terminal number of being affiliated in advance;
Short message receives module, is used to receive the short message of the positional information that comprises described mobile terminal number that the mobile switching centre under the described internet protocal carried voice user profile corresponding mobile terminal number sends; And
The short message parsing module is used for parsing from described short message the positional information of described mobile terminal number.
10. conversation initialized protocol server according to claim 9 is characterized in that, described position information acquisition module comprises:
Sending module is used for sending the Location Request that comprises internet protocal carried voice user profile to location-server; And
Receiver module is used to receive the positional information that described location-server returns;
Wherein, described location-server obtains and returns the positional information of the mobile terminal number that described internet protocal carried voice user is affiliated to according to the described described internet protocal carried voice user profile that receives.
CNB2007100008836A 2007-01-12 2007-01-12 Internet protocal carried voice user accessing method, positioning device and network equipment Expired - Fee Related CN100466856C (en)

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