WO2006034618A1 - A method for perfoming a video conference by terminal dial-up - Google Patents

A method for perfoming a video conference by terminal dial-up Download PDF

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Publication number
WO2006034618A1
WO2006034618A1 PCT/CN2005/000840 CN2005000840W WO2006034618A1 WO 2006034618 A1 WO2006034618 A1 WO 2006034618A1 CN 2005000840 W CN2005000840 W CN 2005000840W WO 2006034618 A1 WO2006034618 A1 WO 2006034618A1
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WO
WIPO (PCT)
Prior art keywords
conference
terminal
calling terminal
call
join
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
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PCT/CN2005/000840
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English (en)
French (fr)
Inventor
Hongtao You
Jia Cao
Yanping Wu
Yongming Wu
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ZTE Corp
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ZTE Corp
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Publication date
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Publication of WO2006034618A1 publication Critical patent/WO2006034618A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/10—Office automation; Time management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/1813—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast for computer conferences, e.g. chat rooms
    • H04L12/1818—Conference organisation arrangements, e.g. handling schedules, setting up parameters needed by nodes to attend a conference, booking network resources, notifying involved parties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
    • 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
    • H04L65/40—Support for services or applications
    • H04L65/403—Arrangements for multi-party communication, e.g. for conferences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H04M3/567—Multimedia conference systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/15—Conference systems

Definitions

  • the present invention relates to a conference television system, and more particularly to a video conference convening method for a conference television system. Background technique
  • the conference television system is a collection of devices that enable multiple parties to join the same multimedia digital conference through digital lines. It can realize real-time voice communication and video mutual viewing between multiple parties.
  • Conference Television System Equipment Conference consisting of two types of basic equipment, including multi-point processing units and terminals, and terminal calls are two basic and essential functions of the conference TV system.
  • the traditional conference TV multi-point conference calling method is initiated by the multi-point processing unit side.
  • the system needs to provide an independent control system.
  • the general process is as follows: The user logs in to the control system and sends a call to the multi-point processing unit through the control interface provided by the control system. The order of the meeting, the multi-point processing unit summons the meeting meeting the requirements according to the order.
  • This traditional conference video conferencing method has the following shortcomings: 1. Landing control system requires users to configure additional computers and has good computer knowledge. For home users who do not have a computer or experience in the IT industry, the conference TV service cannot. 2. Promotion; 2. The conference convened by the multi-point processing unit, the conference television system will generate a set of numbers to identify the conference, and the terminal calls the number to join the conference; in the traditional conference television system, the number is generated by the system, and the user The information is not related, so it is not convenient to remember; 3. Because the conference number is generated by the conference TV system, it has nothing to do with the user information. Therefore, it is necessary to tell the need to attend the conference through additional channels (calling, sending E-mail, etc.) after the conference is called. Terminal, which makes the use of the conference TV service complicated and cumbersome. Invention disclosure
  • the technical problem to be solved by the present invention is to provide a method for convening a multi-point video conference through terminal dialing, which solves the problem that the traditional conference video conference call mode requires the user to log in to the control system, requires additional hardware configuration and is complicated to operate, and the conference identification code is inconvenient to remember. It is not convenient to inform the participants of the technical issues.
  • the present invention provides a multipoint video conference by dialing a terminal.
  • the method is characterized in that: setting a conference special service number and joining a conference special service number in advance, the calling terminal sends a conference creation request to the registration server by using the initiation conference special service number, and the multipoint control unit configures the conference and convene the conference.
  • the conference thereby completing a terminal dialing initiation conference process; the calling terminal sends a joining conference request to the registration server by using the joining conference special service number, thereby completing a terminal dialing joining conference process.
  • the terminal dialing initiation conference process further includes: Step 1: The calling terminal initiates a dialing operation by using a prefix of the conference special service number, and sends a request for creating a conference to the registration server; Step 2: registering the server Forwarding the conference request to the multipoint control unit; Step 3: After receiving the request, the multipoint control unit locally creates a conference, assigns a conference number to the conference, and registers the conference number with the registration server; Step 4: Multipoint control unit Send feedback to the calling terminal to confirm that the conference is successfully called, and initiate a call to the calling terminal and other participating terminals.
  • the parameter string further includes: a conference capacity, a conference password, a conference duration, a quality of service, and/or a terminal that is invited to join the conference.
  • step 2 further includes: the registration server performs authentication authentication on the calling terminal, and if the calling terminal passes the authentication authentication, the meeting is allowed, otherwise the meeting is refused.
  • the step 2 further comprises: the registration server performing a fund inquiry to the billing system, and if the calling terminal account has sufficient funds, allowing the meeting, otherwise rejecting the meeting.
  • the dialing of the terminal to join the conference process further includes: Step 10: The calling terminal prefixes the conference special service number with the parameter string of at least the conference terminal number, initiates a dialing operation, and registers with The server sends a call request; Step 11, the registration server determines whether the joined conference has been registered, and if it has already been registered, returns a multi-point server address to the calling terminal, otherwise rejects the call request; Step 12, the calling terminal according to the address fed back by the registration server The point server initiates a call, and the call information includes the joined conference number. Step 13. The multipoint server determines whether the joined conference has been held. If the conference has been held, the call terminal is allowed to join the conference, otherwise the conference is refused to join the conference.
  • the parameter string further includes a conference password, and corresponding step 12, the call information corresponding to the conference password.
  • the above method is characterized in that, in the step 11, the registration server performs authentication authentication on the calling terminal, and after the authentication is passed, it is determined whether the joining conference has been registered.
  • the step 13 further includes: performing joint authentication on the conference number and the conference password.
  • the multipoint server determines whether the conference capacity is full, and if there is idle, directly responds to the call, allowing The calling terminal joins the conference; if the capacity is full, the new resource is requested. If the system still has idle resources to allow the application, the call is allowed to join the conference in response to the call; otherwise, the call request is rejected.
  • the dialing of the terminal to join the conference process further includes:
  • the calling terminal directly sends a call request to the registration server by using the joining conference special service number
  • the registration server determines whether the parameter string of the calling terminal is “joining the conference service number”, and if yes, directly returns the address of the multipoint control unit, if otherwise refuses to join; step 22, the calling terminal feeds back according to the registration server The address initiates a call to the multipoint control unit.
  • the above method is characterized in that, before the step 21, an authentication step is further included, the registration server performs authentication authentication on the calling terminal, and after the authentication is passed, it is determined whether the parameter string of the calling terminal is "joining the conference service”. number".
  • the step 23 further comprises: the multipoint server determining whether the conference capacity is full, directly responding to the call if there is idle, allowing the calling terminal to join the conference; if the capacity is full, applying for a new resource, if If the system still has idle resources to allow the application, it will respond to the call and allow the calling terminal to join the conference; otherwise, it refuses to join.
  • the above method is characterized in that the parameter string is identified by a string conforming to the e.164 specification.
  • the above method is characterized in that, in the step 3, the multipoint control unit assigns a conference number of "joining the conference service number + calling terminal number" to the conference.
  • the parameter string in the step 1 adopts "initiating conference special service number + conference template number * called number 1 * ⁇ . *called number n * capacity * password * duration # "The way.
  • the above method is characterized in that the unit of the duration is minutes.
  • the above method is characterized in that the parameter string in the step 10 adopts the method of "joining the conference special service number + calling number * conference password #".
  • the present invention has the following advantages:
  • the method proposed by the present invention by setting two special service numbers in advance, causes the terminal to use the special service number to issue a request for creating a conference to the registration server, by registering the server and The authentication of the point control unit is added to the conference, so that the present invention can realize the convening process of the multipoint video conference by using a dialing method similar to that of the ordinary voice telephone.
  • the special service number is preset, which is convenient for memorizing and convenient for notifying the participants.
  • the method proposed by the invention is simple and convenient to use, and the user does not need the IT knowledge background, and only needs to understand the dialing rules to be used, solves the problem of simplifying the application of the conference television service, and facilitates the promotion of the conference television service to ordinary users.
  • FIG. 1 is a flowchart of a terminal dialing initiation conference in the present invention
  • FIG. 3 is a second flowchart of the terminal dialing into the conference in the present invention. The best way to implement the invention
  • two special service numbers should be preset in the method proposed by the present invention: initiating a conference special service number and joining a conference special service number, both of which are used as terminal dialing prefixes for notification Point server dialing purpose.
  • the method proposed by the present invention includes two steps of a terminal dialing initiation conference process and a terminal dialing joining conference process. The process of the terminal dialing initiation conference is as shown in FIG. 1:
  • Step 110 The calling terminal prefixes the parameter number of the meeting capacity and the conference password with the prefix of the “initiating conference special service number”, initiates a dialing operation, and sends a request to create a conference to the registration server.
  • the dialing string starts with the "Initiation of the conference service number". It includes the parameters such as the capacity, password, duration, quality of service, and the terminal that is invited to join the conference.
  • the conference capacity and password in the parameter information are mandatory. Others are Optional; the parameter string is a string identifier that conforms to the e.164 specification.
  • Step 120 The registration server performs a fund inquiry to the billing system, and if the calling terminal account has sufficient funds, the meeting is allowed, otherwise the party refuses.
  • Step 130 The registration server authenticates the calling terminal to confirm whether the terminal has the right to convene the conference. After the authentication is passed, the conference request is forwarded to the multipoint control unit, otherwise the conference request is rejected.
  • Step 140 After receiving the request, the multipoint control unit locally creates a conference, reserves a corresponding resource according to the conference capacity, allocates a conference number for the conference, and registers the conference number with the registration server.
  • the assigned conference number can be in the form of "join conference service number + calling terminal number”.
  • Step 150 The multipoint control unit sends feedback to the calling terminal, returns the conference number, confirms that the conference is successfully called, and initiates a call to the calling terminal and other participating terminals, and the conference is called.
  • Step 210 The calling terminal prefixes the parameter number of the conference terminal and the conference password with a prefix of “joining the conference service number”, initiates a dialing operation, and sends a call request to the registration server.
  • Step 220 The registration server authenticates the calling terminal, confirms whether the terminal has the right to join the conference, determines whether the joined conference has been registered after the authentication is passed, and returns a multipoint server address to the calling terminal if the registration is already performed, otherwise rejects the call. request.
  • Step 230 The calling terminal initiates a call to the multipoint server according to the address fed back by the registration server, where the call information includes the joined conference number and the conference password.
  • Step 240 The multipoint server performs joint authentication on the conference number and the conference password, and allows the calling terminal to join the conference after the authentication is passed, otherwise refuses to join the conference.
  • step 240 may further include step 250: after the authentication is passed, the multipoint server determines whether the conference capacity is full, directly responds to the call if there is idle, and allows the calling terminal to join the conference; if the capacity is full, apply for a new resource, If the system still has idle resources to allow the application, the call is allowed to join the conference in response to the call; otherwise the call request is rejected.
  • Step 310 Join the conference terminal dialing call "Join the conference service number" to place a call request to the registration server.
  • the multipoint control unit has already registered the terminal in the already held conference. Therefore, when joining the terminal to make a call request, only the "joining special service number" is required.
  • the registration method may be that the multipoint conference unit completes the conference configuration and the number configuration of the joining terminal in advance, or the terminal that initiates the conference invites the terminal when calling.
  • Step 320 The registration server performs authentication authentication on the calling terminal. After the authentication is passed, it is determined that the number of the terminal call is “joining the conference special service number”, and then directly returns the address of the multi-point control unit, otherwise the access is refused.
  • Step 330 The calling terminal initiates a call to the multipoint control unit according to the address fed back by the registration server.
  • the terminal dialing initiation conference process described above can be used independently. Terminal dialing to join the meeting process needs To be used on the basis of the terminal dialing initiation meeting.
  • the process of dialing a terminal to join a conference includes but is not limited to the above two.
  • the terminal dials to initiate a meeting
  • "Meeting Template Number” refers to the conference attribute that you want to hold. This is a set of conference templates preset by the system, which contains some basic requirements of the conference, such as conference quality settings, etc., which are used to provide users with quick choices;
  • Password is information that needs to be input by the user. This password is used to authenticate the participating terminals, ensuring that unrelated personnel cannot join the meeting at will;
  • Time is in minutes, optional parameters. If selected, the system will ensure that the system is available within the selected time. If not selected, the system provides the default time period for the conference. The timeout can be extended, as long as the system resources are idle. The system will try to satisfy;
  • the registration server first queries the billing server for user funds, and if the funds are sufficient, transfers the dial information to the multipoint processing unit.
  • the multi-point processing unit parses the information of the called number field, and finds that it is "initiating the conference special service number" At the beginning, the conference creation work is performed, and the number of the conference is made in the form of "980 + Initiating Conference Terminal Number", and the number is registered with the registration server;
  • the registration server feeds back the call confirmation message to the terminal that initiated the dialing, and simultaneously informs the address of the multi-point processing unit of the terminal that initiated the dialing, and the terminal that initiates the dialing will continue to follow.
  • the call flow actively joins the conference; the multi-point processing unit actively initiates the process of calling the terminal according to the information of the called number included in the dialing information.
  • the above process is a standard H.323 call flow.
  • the registration server determines whether the "980+calling number" information has been registered, if not registered, rejects the current call; if it has already been registered, notifies the dialing terminal of the address of the multipoint processing unit;
  • the multi-point processing unit receives the call setup message, parses the content of the destination address parameter of the message, determines the conference that the call wishes to join, and then determines whether the password in the dialing information is correct, if the password is authenticated If yes, the callback port L
  • the above process is a standard H323 call flow.
  • the terminal dials the calling number to join the conference.
  • the registration server first searches for a "990" in the static address resolution table, and if so, returns the address of the multipoint control unit directly to the terminal according to the static address resolution table; if not, rejects the current call;
  • the multipoint control unit checks whether the terminal number has been registered in the currently held conference, and if so, joins the terminal directly to the conference, otherwise refuses to join the conference.
  • the terminal sends a request for creating a conference to the registration server by using the special service number, and the authentication is performed by the registration server and the multipoint control unit, and joins the conference, so that the present invention
  • the calling process of multi-point video conferencing can be realized by a dialing method similar to that of a normal voice telephone.
  • the special service number is preset, which is convenient for memorizing and convenient for notifying the participants.
  • the method proposed by the invention is simple and convenient to use, and the user does not need the IT knowledge background, only needs to understand the dialing
  • the rules can be used to solve the problem of simplifying the application of the conference television service, and facilitating the promotion of the conference television service to ordinary users.
  • the method of the invention can be adapted to a conference television system, and the method of the invention is equally suitable for other fields in which similar applications exist.

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Description

一种通过终端拨号召开多点视频会议的方法 技术领域
本发明涉及会议电视系统， 特别涉及会议电视系统的一种视频会议召开方 法。 背景技术
会议电视系统是实现多方通过数字线路加入同一多媒体数字会议的设备 集合， 它能够在多方之间实现实时语音交流以及视频互看。会议电视系统设备 由多点处理单元以及终端两类基本设备组成会议召集以及终端呼叫是会议电 视系统的两个基本的、 必备的功能。
传统的会议电视多点会议召集方式是由多点处理单元侧发起， 系统需要提 供独立的控制系统， 一般过程是： 使用者登陆控制系统， 通过控制系统提供的 控制界面向多点处理单元发送召集会议的命令， 多点处理单元根据命令召集符 合要求的会议。
这种传统的会议电视会议召集方式存在如下不足： 1、 登陆控制系统， 需 要用户配置额外的计算机， 并具备良好的计算机知识， 对于没有配置计算机或 者没有 IT行业经验的家庭用户， 会议电视业务无法推广； 2、通过多点处理单 元召集的会议， 会议电视系统会产生一组号码来标识该会议， 终端呼叫该号码 加入会议； 传统的会议电视系统中， 该号码是系统产生的， 是与用户信息无关 联的， 因此不方便记忆； 3、 由于会议号码是会议电视系统产生， 与用户信息 无关， 因此需要在会议召集后通过额外途径（打电话、 发送 E-mail等）告诉 需要参加会议的终端， 这使得会议电视业务使用过程复杂而繁琐。 发明公开
本发明所要解决的技术问题是提供一种通过终端拨号召开多点视频会议 的方法，解决传统的会议电视会议召集方式需要用户登陆控制系统，需要额外 硬件配置且操作复杂， 以及会议标识码不便记忆且不便通知参会者的技术问 题。
为实现上述发明目的， 本发明提供了一种通过终端拨号召开多点视频会议 的方法， 其特点在于， 预先设置发起会议特服号码和加入会议特服号码， 主叫 终端利用所述发起会议特服号码向注册服务器发出创建会议请求， 多点控制 单元对会议进行配置并召集会议，从而完成一终端拨号发起会议流程； 呼叫终 端利用所述加入会议特服号码向注册服务器发出加入会议请求，从而完成一终 端拨号加入会议流程。
上述的方法， 其特点在于， 所述终端拨号发起会议流程进一步包括： 步骤 一、主叫终端以发起会议特服号码为前缀， 发起拨号操作， 向注册服务器发出 创建会议请求； 步骤二、注册服务器将创建会议请求转发给多点控制单元； 步 骤三、 多点控制单元收到请求后， 本地创建会议， 为该会议分配会议号码， 并 向注册服务器注册该会议号码； 步骤四、 多点控制单元向主叫终端发出反馈， 确认会议召集成功， 同时向主叫终端和其它与会终端发起呼叫。
上述的方法， 其特点在于， 在所述步骤一中， 所述参数字符串还包括： 会 议容量、 会议密码、 会议时长、 服务质量和 /或计划邀请加入会议的终端。
上述的方法， 其特点在于， 所述步骤二还包括： 注册服务器对主叫终端进 行鉴权认证， 如果所述主叫终端通过所述鉴权认证， 则允许开会， 否则拒绝开 会。
上述的方法， 其特点在于， 所述步骤二还包括： 注册服务器向计费系统做 资金査询，如果所述主叫终端帐号还有足够资金，则允许开会，否则拒绝开会。
上述的方法， 其特点在于， 所述终端拨号加入会议流程进一步包括： 步骤 10、呼叫终端以加入会议特服号码为前缀，输入至少包括发起会议终端号码的 参数字符串， 发起拨号操作， 向注册服务器发出呼叫请求； 步骤 11、 注册服 务器判断所加入会议是否已经注册，如果已经注册，则向呼叫终端返回多点服 务器地址， 否则拒绝呼叫请求； 步骤 12、 呼叫终端根据注册服务器反馈的地 址向多点服务器发起呼叫， 呼叫信息包括加入的会议号码； 步骤 13、 多点服 务器判断所加入的会议是否已召开，如果该会议已召开，则允许呼叫终端加入 会议， 否则拒绝其加入会议。
上述的方法， 其特点在于， 所述步骤 10中， 所述参数字符串还包括会议 密码， 相应的步骤 12， 呼叫信息对应的包括会议密码。
上述的方法， 其特点在于， 所述步骤 11， 注册服务器对呼叫终端进行鉴权 认证， 认证通过后再判断所加入会议是否已经注册。 上述的方法， 其特点在于， 所述步骤 13还包括： 对会议号码与会议密码 进行联合鉴权， 鉴权通过后， 多点服务器判断会议容量是否已满， 如果有空闲 则直接响应呼叫， 允许呼叫终端加入会议； 如果容量已满则申请新的资源， 如 果系统还有空闲资源允许申请， 则响应呼叫， 允许呼叫终端加入会议； 否则拒 绝该呼叫请求。
上述的方法， 其特点在于， 所述终端拨号加入会议流程进一步包括： 步骤
20、呼叫终端直接以所述加入会议特服号码向注册服务器发出呼叫请求；步骤
21、注册服务器判断所述呼叫终端的参数字符串是否是 "加入会议特服号码"， 若是则直接返回多点控制单元的地址， 若否则拒绝加入； 歩骤 22、 呼叫终端 根据注册服务器反馈的地址向多点控制单元发起呼叫； 步骤 23、 多点控制单 元查看当前会议中是否已经登记了所述呼叫终端的号码，是则将所述呼叫终端 直接加入到会议中， 否则拒绝所述呼叫终端加入会议。
上述的方法， 其特点在于， 所述步骤 21之前还包括一鉴权步骤， 注册服 务器对呼叫终端进行鉴权认证，认证通过后再判断所述呼叫终端的参数字符串 是否是 "加入会议特服号码"。
上述的方法， 其特点在于， 所述步骤 23还包括： 多点服务器判断会议容 量是否已满， 如果有空闲则直接响应呼叫， 允许呼叫终端加入会议； 如果容量 已满则申请新的资源， 如果系统还有空闲资源允许申请， 则响应呼叫， 允许呼 叫终端加入会议； 否则拒绝加入。
上述的方法， 其特点在于， 所述参数字符串采用符合 e. 164规范的字符串 标识。
上述的方法， 其特点在于， 所述步骤三中多点控制单元为会议分配 "加入 会议特服号码 +主叫终端号码"的会议号码。
上述的方法， 其特点在于， 所述步骤一中的参数字符串采用 "发起会议特 服号码 +会议模板号 *被叫号 1*···. *被叫号 n*容量 *密码 *时长 #"的方式。
上述的方法， 其特点在于， 所述时长的单位为分钟。
上述的方法， 其特点在于， 所述步骤 10中的参数字符串采用 "加入会议 特服号码 +主叫号码 *会议密码#"的方式。
本发明的优点在于： 本发明提出的方法， 通过预先设置两个特服号码， 使 终端利用所述特服号码向注册服务器发出创建会议请求，通过注册服务器和多 点控制单元的鉴权， 并加入会议，从而本发明通过与普通语音电话类似的拨号 方式， 即可实现多点视频会议的召集过程。 并且所述特服号码预先设定， 便于 记忆并方便通知与会者。 本发明提出的方法使用简单、 方便， 用户无须 IT知 识背景， 只需要了解拨号规则即可使用，解决了会议电视业务应用简单化的问 题， 便于会议电视业务向普通用户的推广。 附图简要说明
图 1是本发明中终端拨号发起会议的流程图；
图 2是本发明中终端拨号加入会议的流程图一；
图 3是本发明中终端拨号加入会议的流程图二。 实现本发明的最佳方式
下面结合附图和实施例对本发明做进一步详细说明。
为实现发明目的， 本发明提出的方法中应预先设置两个特服号码： 发起会 议特服号码和加入会议特服号码，这两个特服号均用做终端拨号的前缀，用于 通知多点服务器拨号的目的。本发明提出的方法包括终端拨号发起会议流程和 终端拨号加入会议流程两个部分， 终端拨号发起会议的流程如图 1所示：
步骤 110、 主叫终端以 "发起会议特服号码"为前缀， 输入至少包括会议 容量和会议密码的参数字符串，发起拨号操作， 向注册服务器发出创建会议请 求。 拨号字符串以 "发起会议特服号码"开始， 包含希望召开会议的容量、 密 码、 时长、服务质量、计划邀请加入会议的终端等参数信息， 参数信息中会议 容量以及密码是必选项，其他是可选项；参数字符串采用符合 e. 164规范的字 符串标识。
步骤 120、 注册服务器向计费系统做资金査询， 如果主叫终端帐号还有足 够资金， 则允许开会， 否则拒绝。
步骤 130、 注册服务器对主叫终端进行鉴权认证， 确认终端是否有权限召 集会议，认证通过后将创建会议请求转发给多点控制单元，否则拒绝开会请求。
步骤 140、 多点控制单元收到请求后， 本地创建会议， 根据会议容量预留 相应资源， 为该会议分配会议号码， 并向注册服务器注册该会议号码。分配的 会议号码可以采用 "加入会议特服号码 +主叫终端号码"的方式。 步骤 150、 多点控制单元向主叫终端发出反馈， 返回会议号码， 确认会议 召集成功， 同时向主叫终端和其它与会终端发起呼叫， 会议召集完成。
终端拨号加入会议的流程一如图 2所示：
步骤 210、 呼叫终端以 "加入会议特服号码"为前缀， 输入至少包括发起 会议终端号码和会议密码的参数字符串， 发起拨号操作， 向注册服务器发出呼 叫请求。
步骤 220、 注册服务器对呼叫终端进行鉴权认证， 确认该终端是否有权限 加入会议； 认证通过后判断所加入会议是否已经注册， 如果已经注册， 则向呼 叫终端返回多点服务器地址， 否则拒绝呼叫请求。
步骤 230、 呼叫终端根据注册服务器反馈的地址向多点服务器发起呼叫， 呼叫信息包括加入的会议号码及会议密码。
步骤 240、 多点服务器对会议号码与会议密码进行联合鉴权， 鉴权通过后 允许呼叫终端加入会议， 否则拒绝其加入会议。
进一步地， 步骤 240还可以包括步骤 250: 鉴权通过后， 多点服务器判断 会议容量是否已满， 如果有空闲则直接响应呼叫， 允许呼叫终端加入会议； 如 果容量已满则申请新的资源， 如果系统还有空闲资源允许申请， 则响应呼叫， 允许呼叫终端加入会议； 否则拒绝该呼叫请求。
终端拨号加入会议的流程二如图 3所示：
步骤 310、加入会议的终端拨号呼叫 "加入会议特服号码"， 向注册服务器 发出呼叫请求。此种情况，多点控制单元在已召开的会议中已经登记了该终端， 所以， 加入终端发出呼叫请求的时候， 只需要 "加入命议特服号码"。 登记的 方法可能是多点会议单元事先完成了会议配置和加入终端的号码配置，也可能 是发起会议的终端在呼叫时邀请了该终端。
步骤 320、 注册服务器对呼叫终端进行鉴权认证， 认证通过后判断终端呼 叫的号码是 "加入会议特服号码"， 则直接返回多点控制单元的地址， 否则拒 绝加入。
步骤 330、呼叫终端根据注册服务器反馈的地址向多点控制单元发起呼叫。 步骤 340、 多点控制单元查看当前已召开的会议中是否已经登记了该终端 号码， 如果有， 则将该终端直接加入到会议中， 否则拒绝其加入会议。
以上说明的终端拨号发起会议流程可独立使用。 终端拨号加入会议流程需 要在终端拨号发起会议的基础上使用。终端拨号加入会议的流程包括但不限于 上述两种。
下面结合一个具体的应用实例来具体说明。
一、 终端拨号发起会议
( 1 )设置 "发起会议特服号码"为 980;
( 2 )设置 "终端拨号发起会议"拨号规则： "发起会议特服号码 +会议模 板号 *被叫号 被叫号 n**容量 *密码 *时长 ； 其中，
A) "发起会议特服号码"表示本次呼叫希望召集一个会议；
B) "会议模板号"是指希望召开的会议属性， 这是系统预先设定的一组会 议模板， 其中包含了会议的一些基本需求， 如会议质量设定等， 用于提供用户 快捷选择；
0多个 "被叫号码"表示需要邀请加入会议的其他终端；该内容是可选的， 输入被叫号码是希望会议召开后，会议主动去邀请该被叫号码；用户也可以在 会议召开后通过本实现的 "终端拨主叫号加入会议"主动拨号加入会议； D) "容量"表示该会议允许多少人参加， 该参数可选， 如果拨号时选择 该参数，则系统会预留足够的资源，保证在容量范围之内的终端能够加入会议; 如果不选择容量参数， 表示不需要预留资源， 系统只要有空闲资源， 就会尽量 足；
E) "密码"是需要用户输入的信息， 该密码用于对与会终端进行鉴权， 保证无关人员不能随意加入会议；
F) "时长"以分钟为单位， 可选参数， 如果选择， 系统会保证在选定时 间内系统可用，如果不选择，系统提供默认时间段的会议，超时可以申请延长， 只要系统资源空闲， 系统会尽量满足；
G) "#"是结束符， 用于没有 "Dial"按键的终端设备提示输入结束。 (3)基于 H. 323协议的 "终端拨号发起会议"功能的具体实现过程：
A)发起拨号的终端， 把拨号信息加载在呼叫请求消息的目的地址参数中， 发送给注册服务器；
B)注册服务器首先向计费服务器查询用户资金， 如果资金足够， 把拨号信 息转给多点处理单元。
C)多点处理单元解析被叫号字段的信息， 发现是以 "发起会议特服号码" 开头， 则进行会议创建工作， 并以 "980 +发起会议终端号码"的形式做为该 会议的号码， 向注册服务器注册该号码；
D)多点处理单元会议创建成功后， 向注册服务器反馈成功信息， 注册服务 器向发起拨号的终端反馈呼叫确认消息，同时告知发起拨号的终端多点处理单 元的地址， 发起拨号的终端会继续后续的呼叫流程，主动加入会议； 多点处理 单元同时根据拨号信息中包含的被叫号码的信息， 主动发起呼叫终端的过程。 上述过程是标准的 H. 323呼叫流程。
"终端拨号发起会议 "拨号举例：
980*0755001*0755002**6*888888*120#
创建会议， 会议创建后邀请终端 0755001， 0755002入会， 使用缺省 的会议模板， 容量 6， 密码 888888， 时长 120分钟；
980101**4*123456*60#
——创建会议， 使用会议模板 101， 时长 60分钟， 密码 123456， 容量 4。 二、 终端拨主叫号加入会议实施例一
(1)设置 "加入会议特服号码"为 990;
(2)设置 "终端拨主叫号加入会议"拨号规则： "加入会议特服号码 +主叫 号码 *会议密码#" ； 其中，
A) "加入会议特服号码"表示本拨号是希望加入某个会议；
B) "主叫号码 "指的是发起会议的终端的号码， 本呼叫加入该终端发起 的会议；
C) "会议密码"是创建会议时设置的密码。
(3)基于 H. 323协议的 "终端拨主叫号加入会议"功能的具体实现过程： A)发起拨号的终端， 把拨号信息加载在呼叫请求消息的目的地址参数中， 发送给注册服务器；
B)注册服务器判断 " 980+主叫号码"信息是否已经注册， 如果没有注册， 拒绝本次呼叫； 如果已经注册， 通知拨号终端多点处理单元的地址；
C)拨号终端如果收到多点处理单元的地址， 则向多点处理单元发起呼叫， 把拨号信息加载在呼叫建立消息的目的地址参数中；
D)多点处理单元收到呼叫建立消息， 解析消息的目的地址参数内容， 确定 该呼叫希望加入的会议，然后判断拨号信息中的密码是否正确，如果密码认证 通过， 则回送呼口 L|建立成功消息， 否则回送呼叫建立拒绝消息。上述过程均是 标准的 H323呼叫流程。
"终端拨主 3 M号加入会议"拨号举例：
9900755001 t=888888#
——加入 0755001这个终端发起的会议， 会议密码是 888888;
三、 终端拨主叫号加入会议实施例二
(1)设置 "加入会议特服号码"为 990;
(2)在注册 S艮务器上设置静态地址解析关系： 将 990解析为多点控制单元 的地址。
(3)基于 H. 323协议的 "终端拨主叫号加入会议"功能的具体实现过程：
A)终端拨号呼叫 "990 "， 发送给注册服务器；
B)注册服务器先在静态地址解析表中査找是否已有 "990"， 如果有， 则根 据静态地址解析表直接向终端返回多点控制单元的地址；如果没有，则拒绝本 次呼叫；
C)拨号终端 Π果收到多点处理单元的地址， 则向多点处理单元发起呼叫；
D)多点控制单元査看当前已召开的会议中是否已经登记了该终端号码， 如 果有， 则将该终端直接加入到会议中， 否则拒绝其加入会议。
"终端拨主叫号加入会议"拨号举例：
990#
——终端直接呼叫 990#加入会议；
当然， 本发明还可有其他多种实施例， 在不背离本发明精神及其实质的情 况下，熟悉本领域的技术人员当可根据本发明作出各种相应的改变和变形， 但 这些相应的改变和变形都应属于本发明所附的权利要求的保护范围。 工业应用性
本发明所述方法， 通过预先设置两个特服号码， 使终端利用所述特服号码 向注册服务器发出创建会议请求，通过注册服务器和多点控制单元的鉴权，并 加入会议，从而本发明通过与普通语音电话类似的拨号方式， 即可实现多点视 频会议的召集过程。并且所述特服号码预先设定，便于记忆并方便通知与会者。 本发明提出的方法使用简单、 方便， 用户无须 IT知识背景， 只需要了解拨号 规则即可使用，解决了会议电视业务应用简单化的问题，便于会议电视业务向 普通用户的推广。本发明方法可适合会议电视系统， 本发明方法同样适合存在 类似应用的其他各领域。

Claims

权利要求书
1、 一种通过终端拨号召开多点视频会议的方法， 其特征在于， 预先设置 发起会议特服号码和加入会议特服号码，主叫终端利用所述发起会议特服号码 向注册服务器发出创建会议请求， 由多点控制单元对会议进行配置并召集会 议，从而完成一终端拨号发起会议流程； 呼叫终端利用所述加入会议特服号码 向注册服务器发出加入会议请求， 从雨完成一终端拨号加入会议流程。
2、 根据权利要求 1所述的方法， 其特征在于， 所述终端拨号发起会议流 程进一步包括：
步骤一、 主叫终端以发起会议特艮号码为前缀， 发起拨号操作， 向注册服 务器发出创建会议请求；
步骤二、 注册服务器将创建会议请求转发给多点控制单元；
步骤三、 多点控制单元收到请求后， 本地创建会议， 为该会议分配会议号 码， 并向注册服务器注册该会议号码；
步骤四、 多点控制单元向主叫终端发出反馈， 确认会议召集成功， 同时向 主叫终端和其它与会终端发起呼叫。
3、 根据权利要求 2所述的方法， 其特征在于， 在所述步骤一中， 所述参 数字符串还包括： 会议容量、 会议密码、 会议时长、 服务质量和 /或计划邀请 加入会议的终端。
4、 根据权利要求 2所述的方法， 其特征在于， 所述步骤二还包括： 注册 服务器对主叫终端进行鉴权认证，如果所述主叫终端通过所述鉴权认证，则允 许开会， 否则拒绝开会。
5、 根据权利要求 2所述的方法， 其特征在于， 所述步骤二还包括： 注册 服务器向计费系统做资金査询，如果所述主叫终端帐号还有足够资金，则允许 开会， 否则拒绝开会。
6、 根据权利要求 2、 3、 4或 5听述的方法， 其特征在于， 所述终端拨号 加入会议流程进一步包括：
步骤 10、呼叫终端以加入会议特服号码为前缀，输入至少包括发起会议终 端号码的参数字符串， 发起拨号操作， 向注册服务器发出呼叫请求；
步骤 11、注册服务器判断所加入会议是否已经注册， 如果已经注册， 则向 呼叫终端返回多点服务器地址， 否则拒绝呼叫请求；
步骤 12、呼叫终端根据注册服务器反馈的地址向多点服务器发起呼叫， 呼 叫信息包括加入的会议号码；
步骤 13、 多点服务器判断所加入的会议是否巳召开， 如果该会议已召幵， 则允许呼叫终端加入会议， 否则拒绝其加入会议。
7、 根据权利要求 6所述的方法， 其特征在于， 所述步骤 10中， 所述参数 字符串还包括会议密码， 相应的步骤 12， 呼叫信窟、对应的包括会议密码。
8、 根据权利要求 6所述的方法， 其特征在于， 所述步骤 11， 注册服务器 对呼叫终端进行鉴权认证， 认证通过后再判断所力口入会议是否已经注册。
9、 根据权利要求 7所述的方法， 其特征在于， 若步骤 10的参数字符串还 包括会议密码，则所述步骤 13还包括：对会议号码与会议密码进行联合鉴权， 鉴权通过后，多点服务器判断会议容量是否已满， 口果有空闲则直接响应呼叫， 允许呼叫终端加入会议；如果容量已满则申请新的资源，如果系统还有空闲资 源允许申请， 则响应呼叫， 允许呼叫终端加入会议； 否则拒绝该呼叫请求。
10、 根据权利要求 2、 3、 4或 5所述的方法， 其特征在于， 所述终端拨号 加入会议流程进一步包括：
步骤 20、呼叫终端直接以所述加入会议特服号码向注册服务器发出呼叫请 求；
步骤 21、注册服务器判断所述呼叫终端的参数字符串是否是 "加入会议特 服号码"， 若是则直接返回多点控制单元的地址， 老否则拒绝加入；
步骤 22、 呼叫终端根据注册服务器反馈的地: t止向多点控制单元发起呼叫； 步骤 23、多点控制单元查看当前会议中是否已经登记了所述呼叫终端的号 码，是则将所述呼叫终端直接加入到会议中，否则拒绝所述呼叫终端加入会议。
11、 根据权利要求 10所述的方法， 其特征在于： 所述步骤 21之前还包括 一鉴权步骤， 具体是： 注册服务器对呼叫终端进 鉴权认证， 认证通过后再判 断所述呼叫终端的参数字符串是否 "加入会议特服号码"。
12, 根据权利要求 10所述的方法， 其特征在于， 所述步骤 23还包括： 多 点服务器判断会议容量是否已满，如果有空闲则直接响应呼叫，允许呼叫终端 加入会议；如果容量已满，则申请新的资源，如果系统还有空闲资源允许申请， 则响应呼叫， 允许呼叫终端加入会议； 否则拒绝 入。
13、 根据权利要求 3所述的方法， 其特征在于， 所述参数字符串采用符合 e. 164规范的字符串标识。
14、 根据权利要求 2所述的方法， 其特征在于， 所述步骤三中多点控制单 元为会议分配 "加入会议特服号码十主叫终端号码" 的会议号码。
15、 根据权利要求 2所述的方法， 其特征在于， 所述步骤一中的参数字符 串采用 "发起会议特服号码 +会议模板号 *被叫号 1*·· ·. *被叫号 n*容量 *密码 * 时长 的方式。
16、 根据权利要求 15所述的方法， 其特征在于， 所述时长的单位为分钟。
17、 根据权利要求 6所述的方法， 其特征在于， 所述步骤 10中的参数字 符串采用 "加入会议特服号码 +主叫号码 *会议密码 的方式。
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