CN101815098B - Point-to-point remote assistance method, system and terminal in IP multimedia subsystem - Google Patents
Point-to-point remote assistance method, system and terminal in IP multimedia subsystem Download PDFInfo
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- CN101815098B CN101815098B CN201010146259.9A CN201010146259A CN101815098B CN 101815098 B CN101815098 B CN 101815098B CN 201010146259 A CN201010146259 A CN 201010146259A CN 101815098 B CN101815098 B CN 101815098B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
- H04L65/1104—Session initiation protocol [SIP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/131—Protocols for games, networked simulations or virtual reality
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Abstract
The invention discloses point-to-point remote assistance method, system and terminal in an IP multimedia subsystem. The method comprises the following steps that an assistance requesting terminal and an assistance providing terminal exchange media resource information through an application server, and a media channel resource between the two terminals is reserved according to the media resource information; when the media channel resource between the assistance terminal and the assistance providing terminal is successfully reserved, a media channel is established according to the reserved media channel resource, and point-to-point remote assistance is carried out using the media channel. The system comprises at least two terminals and the application servers, wherein the terminals are assistance requesting terminal and assistance providing terminal respectively. The terminal comprises an exchange processing module, a channel establishing module and a remote assistance module. The invention has good interoperability and expansibility, and solves the problem of lack of interoperability and expansibility due to the adoption of a custom protocol in the traditional remote assistance.
Description
Technical field
The present invention relates to communication technical field, relate in particular to point-to-point remote assistance method, system and terminal in a kind of IP Multimedia System.
Background technology
In IMS (IP Multimedia Subsystem, IP Multimedia System) business, remote assistance function offers user as a hyperchromic function and uses; This function provides the mode of asking remote assistance between user, and this function can allow friend or computer elite help solve a computer difficult problem.Under the prerequisite of obtaining the authorization, expert can check your screen, even can obtain the control of your computer.
At present, the remote assistance function of MSN is mostly to adopt custom protocol, lacks interoperability and normalization.
Summary of the invention
In view of above-mentioned analysis, the present invention aims to provide point-to-point remote assistance method, system and the terminal in a kind of IP Multimedia System, in order to solve, adopts shortage versatility that custom protocol brings and normative problem in existing remote assistance.
Object of the present invention is mainly achieved through the following technical solutions:
The invention provides the point-to-point remote assistance method in a kind of IP Multimedia System business, comprising:
Steps A: assistance requesting terminal and assistance provide terminal to pass through application server switched-media resource information and reserves the media channel resource between the two according to described media resource information;
Step B: assisting terminal and described assistance when described request provides after the media channel resource reservation success of terminal between the two, sets up media channel, and utilize described media channel to carry out point-to-point remote assistance according to reserved media channel resource.
Further, described steps A specifically comprises:
Steps A 1: described request assists terminal and described assistance to provide terminal to judge respectively whether oneself all possesses point-to-point remote assistance ability, when confirming that the two performs step A2 while all possessing point-to-point remote assistance ability;
Steps A 2: described request assists terminal and described assistance to provide terminal to use Session Initiation Protocol and SDP agreement by described application server switched-media resource information, and reserves the media channel resource between the two according to described media resource information.
Further, described steps A 1 specifically comprises:
Described request assists terminal and described assistance to provide terminal to be registered to respectively application server AS;
The address that described request assists terminal and described assistance to provide terminal to receive register command according to oneself from application server respectively judges, if receive the actual address that the address of register command is oneself, think and oneself possess point-to-point remote assistance ability, and notify the other side by application server, otherwise think oneself not possess point-to-point assistance ability;
When confirming that own and distant terminal all possesses point-to-point remote assistance ability, described request assists terminal and described assistance to provide terminal to use Session Initiation Protocol and SDP agreement by described application server switched-media resource information, and reserves the media channel resource between the two according to described media resource information.
Further, described steps A 2 specifically comprises:
Described request assists terminal to use Session Initiation Protocol and SDP agreement to be sent and carried described request and assist the message of the media resource information of terminal to provide terminal to described assistance by described application server, and described assistance provides terminal to use Session Initiation Protocol and SDP agreement to be returned and carried described assistance and provide the message of the media resource information of terminal to assist terminal to described request by described application server;
Described request assists terminal and described assistance to provide terminal according to the media resource information receiving, to reserve the media channel resource between the two respectively.
Further, described step B specifically comprises:
Step B1: assisting terminal and described assistance when described request provides after the media channel resource reservation success of terminal between the two, and described request assists terminal and described assistance to provide terminal to set up TCP link as media channel according to reserved media channel resource;
Step B2: described assistance provides terminal to assist terminal that the desktop data of variation are provided by described media channel regular request described request.
Further, described step B2 specifically comprises:
Described assistance provides terminal regularly to send request to described request and assists terminal, and described request assists terminal to receive for the first time when described assistance provides the request of terminal, complete desktop data is offered to described assistance terminal is provided; Described request assists terminal to receive when described assistance provides the request of terminal afterwards, the desktop area data that change is offered to described request assist terminal in the scheduled time.
The present invention also provides the point-to-point remote assisting system in a kind of IP Multimedia System business, comprising: at least two terminals and application server, and described terminal is respectively assistance requesting terminal and assistance provides terminal, wherein,
Described request assists terminal and described assistance that terminal is provided, for reserving the media channel resource between the two by described application server switched-media resource information and according to described media resource information; When after the media channel resource reservation success between the two, described request assist terminal and described assistance provide terminal also for, according to reserved media channel resource, set up media channel, and utilize described media channel to carry out point-to-point remote assistance.
Further, described terminal specifically comprises:
Described exchange processing module, be used for using Session Initiation Protocol and SDP agreement and distant terminal general application server switched-media resource information, and assist terminal and described assistance that the media channel resource of terminal between the two is provided according to the reserved described request of described media resource information;
Described Path Setup module, for after the success of media channel resource reservation, and distant terminal is set up media channel according to reserved media channel resource;
Described far module, for providing desktop data or the regular desktop data that variation is provided to described distant terminal of variation by distant terminal described in described media channel regular request.
The present invention also provides a kind of terminal, as assistance requesting terminal or assistance, provides terminal, comprising: exchange processing module, Path Setup module and remote assistance module, wherein,
Described exchange processing module, be used for using Session Initiation Protocol and SDP agreement and distant terminal general application server switched-media resource information, and assist terminal and described assistance that the media channel resource of terminal between the two is provided according to the reserved described request of described media resource information;
Described Path Setup module, for after the success of media channel resource reservation, and distant terminal is set up media channel according to reserved media channel resource;
Described far module, for providing desktop data or the regular desktop data that variation is provided to described distant terminal of variation by distant terminal described in described media channel regular request.
Further, described exchange processing module specifically for, judge whether this terminal all possesses point-to-point remote assistance ability, when confirming that this terminal and distant terminal all possess point-to-point remote assistance ability, use Session Initiation Protocol and SDP agreement and distant terminal general application server switched-media resource information, and assist terminal and described assistance that the media channel resource of terminal between the two is provided according to the reserved described request of described media resource information.
Beneficial effect of the present invention is as follows:
The present invention has overcome and in existing remote assistance, has adopted shortage versatility that custom protocol brings and normative problem, has good interoperability and autgmentability.
Other features and advantages of the present invention will be set forth in the following description, and, part from specification, become apparent, or by implement the present invention understand.Object of the present invention and other advantages can be realized and be obtained by specifically noted structure in write specification, claims and accompanying drawing.
Accompanying drawing explanation
Fig. 1 is described in the embodiment of the present invention in method, sets up the signaling process figure of the media channel for carrying out point-to-point remote assistance;
Fig. 2 is described in the embodiment of the present invention in method, the schematic flow sheet of point-to-point remote assistance;
Fig. 3 is the structural representation of system described in the embodiment of the present invention;
Fig. 4 is the structural representation of terminal described in inventive embodiments.
Embodiment
Below in conjunction with accompanying drawing, specifically describe the preferred embodiments of the present invention, wherein, accompanying drawing forms the application's part, and together with embodiments of the present invention for explaining principle of the present invention.For purpose of clarity and simplification, when it may make theme of the present invention smudgy, by illustrating in detail of known function and structure in omission device described herein.
First by reference to the accompanying drawings 1 and accompanying drawing 2 the point-to-point remote assistance method in IP Multimedia System described in the embodiment of the present invention is elaborated.
In method described in the embodiment of the present invention, first need to judge assistance requesting terminal and assistance provide terminal whether all to possess point-to-point remote assistance ability, judge assistance requesting terminal and assist the process that provides terminal whether all to possess point-to-point remote assistance ability specifically can comprise:
Assistance requesting terminal and assistance provide terminal to be registered to respectively AS (application server);
Assistance requesting terminal and assisting provides terminal to utilize Session Initiation Protocol by judging own residing network environment and whether possess the ability of point-to-point remote assistance with the register flow path of application server AS.
Judgment rule is: the signaling that terminal (assistance requesting terminal or assistance provide terminal) is returned from application server, learn and oneself receive the address of AS signaling if not the actual address of oneself, think and oneself be in NAT (The IP Network Address Translator, network address translation, referring to RFC1631) in environment, do not possess point-to-point remote assistance ability; If the actual address of oneself thinks and oneself is in large net environment to possess point-to-point remote assistance ability.
It should be noted that, when known assistance requesting terminal and assistance provide terminal the two while all possessing point-to-point remote assistance ability, also can omit and judge assistance requesting terminal and assist to provide terminal whether all to possess the process of point-to-point remote assistance ability; Simultaneously those skilled in the art also can adopt additive method to judge assistance requesting terminal and assistance provide terminal whether all to possess point-to-point remote assistance ability, described in the embodiment of the present invention in method only for illustrating.
When confirm assistance requesting terminal and assistance provide terminal the two while all possessing point-to-point remote assistance ability, assistance requesting terminal and assistance provide terminal to pass through application server switched-media resource information and according to the reserved media channel resource between the two of described media resource information; When after the media channel resource reservation success between the two, described request assists terminal and described assistance to provide terminal to set up media channel according to reserved media channel resource, and utilizes described media channel to carry out point-to-point remote assistance.
As shown in Figure 1, Fig. 1 is described in the embodiment of the present invention in method, set up the signaling process figure of the media channel for carrying out point-to-point remote assistance, set the embodiment of the present invention and comprise two terminal: terminal A and terminal B, wherein terminal A is as assistance requesting terminal, terminal B provides terminal as assisting, and described method mainly comprises the steps:
Step 101: terminal A sends invite message (invitation message) and arrives AS (application server), wherein invite message comprises the message body of message header and the SDP form of SIP signaling format, in the message body of invitation message, contain the media resource information of this terminal A, media resource information is IP address and port etc. such as, for the foundation of remote assistance media channel;
Step 102:AS forwards the invite message of self terminal A to terminal B, and terminal B starts to carry out media channel resource reservation according to the media resource of the terminal A receiving;
Step 113 and step 114: terminal A response 180Ring message, sends PRACK message to AS, and the PRACK message that forwards self terminal A by AS is to terminal B; Then terminal B response PRACK message, sends 200PRACK message to AS, and the 200PRACK message that forwards self terminal B by AS is to terminal A;
Step 115 and step 116: the invite message of terminal B response of step 102, send 200OK (invite) message to AS, 200OK (invite) message that forwards self terminal B by AS, to terminal A, represents the success of terminal B media channel resource reservation;
Step 117 and step 118: terminal A response 200OK (invite) message, sends ACK message to AS, and AS forwards the ACK message of self terminal A to terminal B, represents also media channel resource reservation success of terminal A;
Execution of step 111～step 118, the condition of the media channel link setup of point-to-point remote assistance possesses, and then performs step 119;
Step 119: terminal A and terminal B set up TCP link for point-to-point remote assistance function.
As shown in Figure 2, Fig. 2 is described in the embodiment of the present invention in method, and the schematic flow sheet of point-to-point remote assistance, mainly comprises the steps:
Step 201: maintain complete desktop snapshot in terminal A internal memory, and guarantee that this desktop snapshot is up-to-date;
Step 202: terminal B regularly sends request to terminal A, obtains the desktop area data that terminal A changes recently; It should be noted that, when terminal A receives the request of terminal B for the first time, complete desktop snapshot compression can be sent to terminal B;
Step 203: terminal A receives after the request of terminal B, calculates the desktop area data that change after the request of self terminal B last time and sends to terminal B;
Here, the request/response that the media signaling in point-to-point remote assistance process relates to realizes in accordance with RFB3.8 agreement, repeats no more herein.
Next system is elaborated described in 3 pairs of embodiment of the present invention by reference to the accompanying drawings.
As shown in Figure 3, Fig. 3 is the structural representation of system described in the embodiment of the present invention, specifically can comprise: at least two terminals and application server, and terminal is respectively assistance requesting terminal and assistance provides terminal, wherein,
Assistance requesting terminal and assistance provide terminal, mainly by application server switched-media resource information and according to media resource information, reserve the media channel resource between the two; When after the media channel resource reservation success between the two, assistance requesting terminal and assistance provide terminal also for, according to reserved media channel resource, set up media channel, and utilize the media channel of setting up to carry out point-to-point remote assistance.
This terminal specifically can comprise: exchange processing module, Path Setup module and far module, wherein,
Exchange processing module, is used Session Initiation Protocol and SDP agreement and distant terminal general application server switched-media resource information, and assists terminal and described assistance that the media channel resource of terminal between the two is provided according to the reserved described request of described media resource information;
Path Setup module, after the success of media channel resource reservation, and distant terminal is set up media channel according to reserved media channel resource;
Far module, is provided the desktop data of variation or the desktop data of variation is regularly provided to distant terminal by the media channel regular request distant terminal of setting up.
Finally terminal is elaborated described in 4 pairs of embodiment of the present invention by reference to the accompanying drawings.
As shown in Figure 4, Fig. 4 is the structural representation of terminal described in the embodiment of the present invention, and this terminal can be used as assistance requesting terminal, also can be used as and assists to provide terminal, specifically can comprise: exchange processing module, Path Setup module and far module, wherein,
Exchange processing module, be used for using Session Initiation Protocol and SDP agreement and distant terminal general application server switched-media resource information, and assist terminal and described assistance that the media channel resource of terminal between the two is provided according to the reserved described request of described media resource information;
Be exactly specifically, when this terminal is during as assistance requesting terminal, exchange processing module judges whether this terminal all possesses point-to-point remote assistance ability, when confirming that this terminal and assistance provide terminal all to possess point-to-point remote assistance ability, provide terminal to use Session Initiation Protocol and SDP agreement general application server switched-media resource information with assistance, and assist terminal and assistance that the media channel resource of terminal between the two is provided according to media resource information reservation request; When this terminal provides terminal as assistance, exchange processing module judges whether this terminal all possesses point-to-point remote assistance ability, when confirming that this terminal and assistance requesting terminal all possess point-to-point remote assistance ability, exchange processing module and assistance requesting terminal are used Session Initiation Protocol and SDP agreement general application server switched-media resource information, and assist terminal and assistance that the media channel resource of terminal between the two is provided according to media resource information reservation request.
Path Setup module, for after the success of media channel resource reservation, and distant terminal is set up media channel according to reserved media channel resource.
Far module, for providing desktop data or the regular desktop data that variation is provided to distant terminal of variation by the media channel regular request distant terminal of setting up;
Be exactly specifically, when providing terminal as assistance, far module regularly sends request to assistance requesting terminal, and after the complete desktop data that provide of request collaborationist are provided for the first time, regularly obtains the desktop area data that change in the scheduled time that request collaborationist provides.When this terminal is during as assistance requesting terminal, far module is received for the first time while assisting to provide the request of terminal, complete desktop data is offered and assist to provide terminal; Receive afterwards while assisting to provide the request of terminal, the desktop area data that change in the scheduled time are offered to assistance requesting terminal.
In sum, the embodiment of the present invention provides point-to-point remote assistance method, system and the terminal in a kind of IP Multimedia System, there is good interoperability and autgmentability, overcome and in existing remote assistance, adopted shortage versatility that custom protocol brings and normative problem.
Above; only for preferably embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claims.
Claims (10)
1. the point-to-point remote assistance method in IP Multimedia System business, is characterized in that, comprising:
Steps A: when assistance requesting terminal and assistance provide terminal all to possess point-to-point remote assistance ability, described request assists terminal and described assistance to provide terminal to pass through application server switched-media resource information and according to the reserved media channel resource between the two of described media resource information;
Step B: assisting terminal and described assistance when described request provides after the media channel resource reservation success of terminal between the two, sets up media channel, and utilize described media channel to carry out point-to-point remote assistance according to reserved media channel resource.
2. method according to claim 1, is characterized in that, described steps A specifically comprises:
Steps A 1: described request assists terminal and described assistance to provide terminal to judge respectively whether oneself all possesses point-to-point remote assistance ability, when confirming that the two performs step A2 while all possessing point-to-point remote assistance ability;
Steps A 2: described request assists terminal and described assistance to provide terminal to use Session Initiation Protocol and SDP agreement by described application server switched-media resource information, and reserves the media channel resource between the two according to described media resource information.
3. method according to claim 2, is characterized in that, described steps A 1 specifically comprises:
Described request assists terminal and described assistance to provide terminal to be registered to respectively application server AS;
The address that described request assists terminal and described assistance to provide terminal to receive register command according to oneself from application server respectively judges, if receive the actual address that the address of register command is oneself, think and oneself possess point-to-point remote assistance ability, and notify the other side by application server, otherwise think oneself not possess point-to-point assistance ability;
When confirming that own and distant terminal all possesses point-to-point remote assistance ability, described request assists terminal and described assistance to provide terminal to use Session Initiation Protocol and SDP agreement by described application server switched-media resource information, and reserves the media channel resource between the two according to described media resource information.
4. method according to claim 2, is characterized in that, described steps A 2 specifically comprises:
Described request assists terminal to use Session Initiation Protocol and SDP agreement to be sent and carried described request and assist the message of the media resource information of terminal to provide terminal to described assistance by described application server, and described assistance provides terminal to use Session Initiation Protocol and SDP agreement to be returned and carried described assistance and provide the message of the media resource information of terminal to assist terminal to described request by described application server;
Described request assists terminal and described assistance to provide terminal according to the media resource information receiving, to reserve the media channel resource between the two respectively.
5. according to the method described in any one in claim 1 to 4, it is characterized in that, described step B specifically comprises:
Step B1: assisting terminal and described assistance when described request provides after the media channel resource reservation success of terminal between the two, and described request assists terminal and described assistance to provide terminal to set up TCP link as media channel according to reserved media channel resource;
Step B2: described assistance provides terminal to assist terminal that the desktop data of variation are provided by described media channel regular request described request.
6. method according to claim 5, is characterized in that, described step B2 specifically comprises:
Described assistance provides terminal regularly to send request to described request and assists terminal, and described request assists terminal to receive for the first time when described assistance provides the request of terminal, complete desktop data is offered to described assistance terminal is provided; Described request assists terminal to receive when described assistance provides the request of terminal afterwards, the desktop area data that change is offered to described request assist terminal in the scheduled time.
7. the point-to-point remote assisting system in an IP Multimedia System business, it is characterized in that, comprise: at least two terminals and application server, described terminal is respectively assistance requesting terminal and assistance provides terminal, and described request assists terminal and described assistance to provide terminal all to possess point-to-point remote assistance ability, wherein
Described request assists terminal and described assistance that terminal is provided, for reserving the media channel resource between the two by described application server switched-media resource information and according to described media resource information; When after the media channel resource reservation success between the two, described request assist terminal and described assistance provide terminal also for, according to reserved media channel resource, set up media channel, and utilize described media channel to carry out point-to-point remote assistance.
8. system according to claim 7, is characterized in that, described terminal specifically comprises:
Described exchange processing module, be used for using Session Initiation Protocol and SDP agreement and distant terminal general application server switched-media resource information, and assist terminal and described assistance that the media channel resource of terminal between the two is provided according to the reserved described request of described media resource information;
Described Path Setup module, for after the success of media channel resource reservation, and distant terminal is set up media channel according to reserved media channel resource;
Described far module, for providing desktop data or the regular desktop data that variation is provided to described distant terminal of variation by distant terminal described in described media channel regular request.
9. a terminal, is characterized in that, as assistance requesting terminal or assistance, provides terminal, described request assists terminal and described assistance to provide terminal all to possess point-to-point remote assistance ability, comprise: exchange processing module, Path Setup module and remote assistance module, wherein
Described exchange processing module, be used for using Session Initiation Protocol and SDP agreement and distant terminal general application server switched-media resource information, and assist terminal and described assistance that the media channel resource of terminal between the two is provided according to the reserved described request of described media resource information;
Described Path Setup module, for after the success of media channel resource reservation, and distant terminal is set up media channel according to reserved media channel resource;
Described far module, for providing desktop data or the regular desktop data that variation is provided to described distant terminal of variation by distant terminal described in described media channel regular request.
10. terminal according to claim 9, it is characterized in that, described exchange processing module specifically for, judge whether this terminal all possesses point-to-point remote assistance ability, when confirming that this terminal and distant terminal all possess point-to-point remote assistance ability, use Session Initiation Protocol and SDP agreement and distant terminal general application server switched-media resource information, and assist terminal and described assistance that the media channel resource of terminal between the two is provided according to the reserved described request of described media resource information.
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| CN201010146259.9A CN101815098B (en) | 2010-04-14 | 2010-04-14 | Point-to-point remote assistance method, system and terminal in IP multimedia subsystem |
| PCT/CN2010/074269 WO2011127690A1 (en) | 2010-04-14 | 2010-06-22 | Method, system and terminal for performing point-to-point remote assistance in internet protocol multimedia subsystem |
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| CN101815098B (en) * | 2010-04-14 | 2014-04-30 | 中兴通讯股份有限公司 | Point-to-point remote assistance method, system and terminal in IP multimedia subsystem |
| CN102905250B (en) * | 2011-07-27 | 2015-08-12 | 三星电子（中国）研发中心 | The method, system and device of remote assistance between mobile terminal |
| CN106792798B (en) * | 2016-11-28 | 2020-09-11 | 北京奇虎科技有限公司 | Mobile terminal remote assistance connection detection method and device |
| CN110719255B (en) * | 2019-09-04 | 2023-09-29 | 西安交大捷普网络科技有限公司 | Collaborative operation and maintenance method and system based on SSH protocol |
| CN113726895B (en) * | 2021-08-31 | 2023-08-25 | 广州艾美网络科技有限公司 | File transmission method and device and network KTV system |
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| CN101400149A (en) * | 2007-09-27 | 2009-04-01 | 中兴通讯股份有限公司 | System and method for realizing remote assistance by mobile terminal |
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| EP1727329A1 (en) * | 2005-05-23 | 2006-11-29 | Siemens S.p.A. | Method and system for the remote management of a machine via IP links of an IP multimedia subsystem, IMS |
| CN101803325B (en) * | 2007-09-17 | 2013-05-01 | 爱立信电话股份有限公司 | A method and arrangement of a multimedia gateway and communication terminals |
| CN101815098B (en) * | 2010-04-14 | 2014-04-30 | 中兴通讯股份有限公司 | Point-to-point remote assistance method, system and terminal in IP multimedia subsystem |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101237327A (en) * | 2007-02-01 | 2008-08-06 | ***助在线信息技术有限公司 | An online help platform system and its realization method |
| CN101400149A (en) * | 2007-09-27 | 2009-04-01 | 中兴通讯股份有限公司 | System and method for realizing remote assistance by mobile terminal |
| CN101616186A (en) * | 2009-07-14 | 2009-12-30 | 中兴通讯股份有限公司 | Remote assistance implementation method, Apparatus and system based on IP Multimedia System |
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