公开(公告)号：US06934534B1

公开(公告)日：2005-08-23

申请号：US09996577

申请日：2001-11-30

申请人： Radhika R. Roy

发明人： Radhika R. Roy

IPC分类号： H04L29/06 ,  H04L29/08 ,  H04M3/42 ,  H04M7/00 ,  H04M11/10 ,  H04W8/02

CPC分类号： H04W8/12 ,  H04L29/06027 ,  H04L65/1009 ,  H04L67/14 ,  H04M3/42348 ,  H04M7/0078 ,  H04M7/128 ,  H04W8/02 ,  H04W40/36

摘要： A framework of a common mobility management protocol for Q.5/16 (Mobility for Multimedia Systems/Applications and Services) comprises a high level protocol for performing the functions of address resolution, routing, location update and authentication. The common mobility management protocol can be used by all existent and future multimedia applications (MA's) to support mobility management for messaging among mobility management authentication function (AuF), home location function (HLF) and visitor location function (VLF) databases/servers, and the corresponding multimedia application functional entities (MAFEs) of the multimedia applications (MA's). The common mobility management protocol may replace, act in concert with or in sequence with existent interworking protocols for the various multimedia applications. Reference point architectures, functional characteristics, features, and capabilities of the protocol are described including call flows and message syntax. In addition, the scope of Q.5/16 and how H.MMS.1 (H.323 Mobility), H.MMS.2 (Global Mobility), and H.MMS.3 (Presence/Instant Messaging Mobility) can be a part of the same common mobility management protocol have also been presented.

摘要翻译： 用于Q.5 / 16（多媒体系统/应用和服务的移动性）的通用移动性管理协议的框架包括用于执行地址解析，路由，位置更新和认证的功能的高级协议。 所有现有和未来的多媒体应用（MA）可以使用公共移动性管理协议来支持移动性管理认证功能（AuF），归属位置功能（HLF）和访问者位置功能（VLF）数据库/服务器之间的消息传递的移动性管理， 以及多媒体应用（MA）的相应多媒体应用功能实体（MAFE）。 公共移动性管理协议可以替代，与各种多媒体应用的现有互通协议一致地或依次地行动。 描述协议的参考点架构，功能特征，特征和功能，包括呼叫流和消息语法。 此外，Q.5 / 16的范围以及H.MMS.1（H.323移动性），H.MMS.2（全球流动性）和H.MMS.3（存在/即时消息流动性）可以如何 也提出了同一共同移动管理协议的一部分。

公开(公告)号：US06785244B2

公开(公告)日：2004-08-31

申请号：US10346510

申请日：2003-01-17

申请人： Radhika R. Roy

发明人： Radhika R. Roy

IPC分类号： G01R3108

CPC分类号： H04L12/1827

摘要： The invention provides an apparatus and method that allows the operator of each user device participating in a multimedia conference to selectively receive information services during the multimedia conference. The apparatus includes a controller for receiving start-up signals from a user device, sending start-up requests to destination user devices, and receiving start-up signals from the destination user devices. The start-up signals may include information as to whether each user device requests information services to be provided during the multimedia conference. The controller establishes the multimedia conference and selectively provides the information services to the respective user devices. The information services are provided continuously or non-continuously at the preference of the user devices. The information services may also be provided in various formats at the preference of the user devices.

摘要翻译： 本发明提供了一种装置和方法，其允许参与多媒体会议的每个用户设备的操作者在多媒体会议期间选择性地接收信息服务。 该装置包括用于从用户设备接收启动信号的控制器，向目标用户设备发送启动请求，以及从目的地用户设备接收启动信号。 启动信号可以包括关于每个用户设备是否请求在多媒体会议期间提供的信息服务的信息。 控制器建立多媒体会议，并有选择地向相应的用户设备提供信息服务。 以用户设备的优先级连续或非连续地提供信息服务。 信息服务还可以以用户设备的偏好以各种格式提供。

公开(公告)号：US06732177B1

公开(公告)日：2004-05-04

申请号：US09642298

申请日：2000-08-18

申请人： Radhika R. Roy

发明人： Radhika R. Roy

IPC分类号： G06F1516

CPC分类号： H04M3/42272 ,  H04L29/06027 ,  H04L65/1009 ,  H04L65/4038 ,  H04M3/382 ,  H04M7/006 ,  H04Q3/005 ,  H04Q2213/13034 ,  H04Q2213/13095 ,  H04Q2213/13097 ,  H04Q2213/13098 ,  H04Q2213/13103 ,  H04Q2213/13176 ,  H04Q2213/13196 ,  H04Q2213/13204 ,  H04Q2213/13349 ,  H04Q2213/13389 ,  H04W8/06 ,  H04W48/16 ,  H04W80/04

摘要： The present invention provides an intelligent signaling scheme for a computer-readable medium for an H.323-based mobility architecture for real-time mobile multimedia communications and conferencing over packet-based networks. The steps for the scheme include: (1) upon becoming mobile and initiating an H.323 communication that includes at least one of: audio, video and data, by the Mobile Entity, with respect to notification, one of providing, by at least one of a plurality of available H.323 Home/Foreign Mobility Gatekeepers, notification of H.323 mobility services availability by periodically broadcasting, multicasting or unicasting a Mobility Gatekeeper Advertisement with a multicast/unicast address; and where the Mobile Entity lacks notification of H.323 mobility services availability, broadcasting, multicasting, unicasting or sending, by the Mobile Entity, a message to the Home Gatekeeper or Home Location Database, which notifies H.323 Home/Foreign Mobility Gatekeepers in a preselected area local to the Mobile Entity that the Mobile Entity needs H.323 mobility services and notifying, by the H.323 Home/Foreign Mobility Gatekeepers, the Mobile Entity of available H.323 Home/Foreign Mobility Gatekeepers; (2) registering, by the Mobile Entity, with a H.323 Home/Foreign Mobility Gatekeeper of the available H.323 Home/Foreign Mobility Gatekeepers that support H.323 mobility services in a Location Area, Cell or Zone of the Mobile Entity; and (3) providing, for the Mobile Terminal, Node or Entity by the H.323 Home/Foreign Mobility Gatekeeper with which the Mobile Entity is registered, support for the H.323 communication that includes at least one of: audio, video and data.

摘要翻译： 本发明为用于基于分组的网络的实时移动多媒体通信和会议的基于H.323的移动性架构提供了一种用于计算机可读介质的智能信令方案。 该方案的步骤包括：（1）移动实体和移动实体之间发起包括音频，视频和数据中的至少一个的H.323通信，关于通知，至少提供一个 多个可用的H.323归属/外部移动关守中的一个，通过周期性地广播，组播或单播具有多播/单播地址的移动关守广告来通知H.323移动性服务可用性; 移动实体缺少H.323移动业务可用性，广播，多播，单播或由移动实体发送的消息，向Home Gatekeeper或归属位置数据库发送消息，该消息通知H.323主机/外部移动性关守 移动实体本地的预选区域，移动实体需要H.323移动性业务，并由H.323归属/外部移动性关守通知可用H.323归属/外部移动性关守的移动实体; （2）由移动实体向移动实体的位置区域，小区或区域中支持H.323移动业务的可用H.323归属/外部移动性关守的H.323归属/外部移动性关守注册 ; 和（3）为由移动实体注册的H.323家庭/外部移动性关守提供移动终端节点或实体，支持H.323通信，其包括以下中的至少一个：音频，视频和 数据。

公开(公告)号：US06697341B1

公开(公告)日：2004-02-24

申请号：US09371864

申请日：1999-08-11

申请人： Radhika R. Roy

发明人： Radhika R. Roy

IPC分类号： H04L1216

CPC分类号： H04M3/567 ,  H04Q3/0062 ,  H04Q2213/1324 ,  H04Q2213/13337

摘要： An apparatus and method for providing multimedia conferencing services with selective performance parameters delivers a different representation of the same video signals to each of a plurality of users depending on the hardware limitations, software limitations, network limitations, and user preferences of each user device. Thus, each user can choose the quality of service he/she wants to receive in view of system limitations and cost considerations. The quality of service may be defined in terms of bandwidth, jitter, frame rate, and delay, for example. The apparatus includes a multimedia bridge that receives video signals from at least one of the plurality of users. The multimedia bridge scales-down the video signals as necessary before sending the video signals to the end users. The multimedia bridge also detects congestion occurring during the multimedia conference and scales-down the video signals, if necessary, to meet reduced network availability. In addition, the multimedia bridge accommodates changes in user preferences occurring during the multimedia conference and adjusts the video signals as necessary.

摘要翻译： 用于提供具有选择性能参数的多媒体会议服务的装置和方法根据硬件限制，软件限制，网络限制和每个用户设备的用户偏好，将相同视频信号的不同表示传递给多个用户中的每一个。 因此，鉴于系统限制和成本考虑，每个用户可以选择他/她想要接收的服务质量。 例如，可以根据带宽，抖动，帧速率和延迟来定义服务质量。 该装置包括从多个用户中的至少一个接收视频信号的多媒体网桥。 在将视频信号发送给最终用户之前，多媒体网桥必要时会缩小视频信号。 多媒体网桥还可以检测在多媒体会议期间发生的拥塞，并根据需要缩小视频信号，以满足减少的网络可用性。 此外，多媒体网桥容纳在多媒体会议期间发生的用户偏好的变化，并根据需要调整视频信号。

公开(公告)号：US06310862B1

公开(公告)日：2001-10-30

申请号：US08881261

申请日：1997-06-24

申请人： Radhika R. Roy

发明人： Radhika R. Roy

IPC分类号： H04L1216

CPC分类号： H04L12/2801 ,  H04L2012/5605 ,  H04L2012/5606 ,  H04L2012/561 ,  H04L2012/5638 ,  H04L2012/5642 ,  H04Q11/0478

摘要： A technique for providing real-time multimedia conferencing services with guaranteed performance, in a hybrid networking environment, by interconnecting cable modem-based premises networks via hybrid fiber coaxial (HFC) access networks and an ATM wide area network is disclosed. A functional design constitutes both component and protocol architecture of an ATM cable modem for both premises networks and headend stations. The ATM wide area network may be divided into a plurality of access network domains and one backbone network domain to provide efficient and intelligent multimedia conferencing services. Each ATM access network domain has one cable modem server as well as access multimedia bridge server, while there is only one central network server and one central multimedia bridge server within the backbone network domain. Each cable modem server located in an ATM access network domain maintains necessary information of how the bandwidth of the cable network is being used by existing calls, and how the cable bandwidth will be allocated when new multimedia conference calls are initiated, in accordance with the desired priority and performance levels. If all conference participants are connected to the same ATM access network domain, the access multimedia bridge server of that domain will provide bridging, otherwise the central multimedia bridge will provide bridging. An integrated call control algorithm and cable modem control and signaling protocol scheme has been developed to set up multimedia conference calls that guarantee bandwidth over the cable access network as well within the wide area ATM network.

摘要翻译： 公开了一种在混合网络环境中通过混合光纤同轴（HFC）接入网络和ATM广域网互联基于电缆调制解调器的房屋网络来提供具有保证性能的实时多媒体会议业务的技术。 功能设计构成了用于房屋网络和前端站的ATM电缆调制解调器的组件和协议架构。 ATM广域网可以分为多个接入网域和一个骨干网域，以提供高效智能的多媒体会议业务。 每个ATM接入网域具有一个电缆调制解调器服务器以及接入多媒体桥服务器，而在骨干网域内只有一个中央网络服务器和一个中央多媒体桥服务器。位于ATM接入网域中的每个电缆调制解调器服务器维护 根据所需的优先级和性能水平，现有呼叫如何使用有线网络的带宽的必要信息，以及如何在启动新的多媒体电话会议时如何分配电缆带宽。 如果所有会议参与者都连接到相同的ATM接入网域，则该域的接入多媒体桥服务器将提供桥接，否则中央多媒体桥将提供桥接。 已经开发了一种综合呼叫控制算法和电缆调制解调器控制和信令协议方案，以建立多媒体电话会议，保证有线接入网络以及广域ATM网络中的带宽。

公开(公告)号：US6049531A

公开(公告)日：2000-04-11

申请号：US892516

申请日：1997-07-14

申请人： Radhika R. Roy

发明人： Radhika R. Roy

IPC分类号： H04L12/56 ,  H04L29/06 ,  H04M7/00 ,  H04Q11/04 ,  H04L12/16 ,  H04M3/42

CPC分类号： H04L65/4038 ,  H04L29/06 ,  H04Q11/0478 ,  H04L2012/5638 ,  H04L2012/5667 ,  H04L29/06027 ,  H04M7/006

摘要： A technique for providing real-time multimedia conferencing services with guaranteed performance, in a hybrid networking environment, by interconnecting ADSL modem-based premises networks via ADSL access networks and an ATM wide area network is disclosed. A functional design constitutes both component and protocol architecture of an ATM ADSL modem for both premises networks and headend stations of the ATM network. The ATM wide area network may be divided into a plurality of access network domains and one backbone network domain to provide efficient and intelligent multimedia conferencing services. Each ATM access network domain has one ADSL modem server as well as access multimedia bridge server, while there is only one central network server and one central multimedia bridge server within the backbone network domain.Each ADSL modem server located in an ATM access network domain maintains necessary information of how the bandwidth of the ADSL access network is being used by existing calls, and how the ADSL line bandwidth will be allocated when new multimedia conference calls are initiated, in accordance with the desired priority and performance levels. If all conference participants are connected to the same ATM access network domain, the access multimedia bridge server of that domain will provide bridging, otherwise the central multimedia bridge will provide bridging. An integrated call control algorithm and cable modem control and signaling protocol scheme has been developed to set up multimedia conference calls that guarantee bandwidth over the ADSL access network as well within the wide area ATM network.

摘要翻译： 公开了一种通过经由ADSL接入网络和ATM广域网互连基于ADSL调制解调器的房屋网络，在混合网络环境中提供具有有保证的性能的实时多媒体会议服务的技术。 功能设计构成了用于ATM网络的前端网络和前端站的ATM ADSL调制解调器的组件和协议架构。 ATM广域网可以分为多个接入网域和一个骨干网域，以提供高效智能的多媒体会议业务。 每个ATM接入网域具有一个ADSL调制解调器服务器以及接入多媒体桥服务器，而在骨干网域内只有一个中央网络服务器和一个中央多媒体桥服务器。 位于ATM接入网域中的每个ADSL调制解调器服务器保持现有呼叫正在使用ADSL接入网络的带宽的必要信息，以及当新的多媒体会议呼叫被启动时如何分配ADSL线路带宽 期望的优先级和性能水平。 如果所有会议参与者都连接到相同的ATM接入网域，则该域的接入多媒体桥服务器将提供桥接，否则中央多媒体桥将提供桥接。 已经开发了综合呼叫控制算法和电缆调制解调器控制和信令协议方案，以建立多媒体电话会议，保证广域ATM网络内ADSL接入网络的带宽。

公开(公告)号：US08699516B2

公开(公告)日：2014-04-15

申请号：US13082895

申请日：2011-04-08

申请人： Hemant Agrawal ,  Radhika R. Roy ,  Vipin Palawat

发明人： Hemant Agrawal ,  Radhika R. Roy ,  Vipin Palawat

IPC分类号： H04J3/16 ,  H04J3/22

CPC分类号： H04L65/1033 ,  H04L29/06 ,  H04L29/06027 ,  H04L29/12594 ,  H04L45/741 ,  H04L61/106 ,  H04L61/30 ,  H04L65/1006 ,  H04L65/1009 ,  H04L65/1043 ,  H04L65/1069 ,  H04L65/1073 ,  H04L69/08 ,  H04Q11/04 ,  H04Q2213/1302 ,  H04Q2213/13034 ,  H04Q2213/1304 ,  H04Q2213/13103 ,  H04Q2213/13196 ,  H04Q2213/13204 ,  H04Q2213/13216 ,  H04Q2213/13389

摘要： An interworking function (IWF) for a first and second protocol based network, for example, an H.323 protocol based network and an SIP protocol based network comprises an interworking gateway server including a state machine for defining each call processing state and a translation table for use in translating addresses formatted in each protocol. A method of interworking for use in interworking between said first protocol based network and said second protocol based network comprises the steps of receiving at said interworking gateway server serving said first and second protocol based networks a request from an endpoint in the first or second protocol based networks, establishing a state machine in memory whereby, for each state of said state machine, a message associated with that state is categorized as one of a triggering message, a non-triggering message and an error message, establishing a translation table in said memory whereby an address formatted in said first protocol has a one-for-one correspondence with an address formatted in said second protocol, processing said request in accordance with said translation table and said state machine and permitting communication between said first and second endpoints utilizing a realtime transport protocol. In the event media is terminated at said interworking gateway server, the interworking gateway server, in one embodiment, comprises a media switching fabric for switching media terminated at the gateway to an addressed endpoint capable of receiving it.

摘要翻译： 用于基于第一和第二协议的网络的互通功能（IWF），例如基于H.323协议的网络和基于SIP协议的网络包括互通网关服务器，其包括用于定义每个呼叫处理状态的状态机和翻译表 用于翻译每个协议格式化的地址。 一种用于所述基于第一协议的网络和所述基于第二协议的网络之间的互通中的交互工作的方法包括以下步骤：在所述互通网关服务器处接收服务于基于第一和第二协议的网络的基于第一或第二协议的端点的请求 网络，在存储器中建立状态机，由此，对于所述状态机的每个状态，与该状态相关联的消息被分类为触发消息，非触发消息和错误消息之一，在所述存储器中建立转换表 由此在所述第一协议中格式化的地址与所述第二协议格式化的地址具有一一对应关系，根据所述转换表和所述状态机处理所述请求，并且利用实时的方式允许所述第一和第二端点之间的通信 传输协议。 在媒体终止于所述互通网关服务器的情况下，在一个实施例中，互通网关服务器包括用于将终端于网关处的媒体切换到能够接收它的寻址端点的媒体交换结构。

公开(公告)号：US08630299B1

公开(公告)日：2014-01-14

申请号：US11239753

申请日：2005-09-30

申请人： Siroos K. Afshar ,  Gerald M. Ezrol ,  Stephen Fisher ,  Samuel Glazer ,  Radhika R. Roy

发明人： Siroos K. Afshar ,  Gerald M. Ezrol ,  Stephen Fisher ,  Samuel Glazer ,  Radhika R. Roy

IPC分类号： H04L12/28 ,  H04J3/22

CPC分类号： H04J3/22 ,  H04L12/28 ,  H04L65/1026 ,  H04L65/1036 ,  H04L65/1069

摘要： A customer premises border element is disclosed that functions as an interface between devices, such as SIP devices located on a customer's premises, and a border element located in the service provider's network. Such customer premises border elements are advantageous in that they are relatively inexpensive since they only have to support devices located on the customer's premises. At the same time, by performing a number of functions, such as media transcoding and a portion of call processing, it reduces the processing requirements of network border elements.

摘要翻译： 公开了用作设备之间的接口的客户驻地边界元素，诸如位于客户驻地的SIP设备以及位于服务提供商的网络中的边界元素。 这样的客户驻地边界元件的优点在于它们相对便宜，因为它们只需要支持位于客户的房屋上的设备。 同时，通过执行诸如媒体转码和呼叫处理的一部分等功能，减少了网络边界元素的处理需求。

公开(公告)号：US20110191486A1

公开(公告)日：2011-08-04

申请号：US13082895

申请日：2011-04-08

申请人： Hemant Agrawal ,  Radhika R. Roy ,  Vipin Palawat

发明人： Hemant Agrawal ,  Radhika R. Roy ,  Vipin Palawat

IPC分类号： G06F15/16

CPC分类号： H04L65/1033 ,  H04L29/06 ,  H04L29/06027 ,  H04L29/12594 ,  H04L45/741 ,  H04L61/106 ,  H04L61/30 ,  H04L65/1006 ,  H04L65/1009 ,  H04L65/1043 ,  H04L65/1069 ,  H04L65/1073 ,  H04L69/08 ,  H04Q11/04 ,  H04Q2213/1302 ,  H04Q2213/13034 ,  H04Q2213/1304 ,  H04Q2213/13103 ,  H04Q2213/13196 ,  H04Q2213/13204 ,  H04Q2213/13216 ,  H04Q2213/13389

摘要： An interworking function (IWF) for a first and second protocol based network, for example, an H.323 protocol based network and an SIP protocol based network comprises an interworking gateway server including a state machine for defining each call processing state and a translation table for use in translating addresses formatted in each protocol. A method of interworking for use in interworking between said first protocol based network and said second protocol based network comprises the steps of receiving at said interworking gateway server serving said first and second protocol based networks a request from an endpoint in the first or second protocol based networks, establishing a state machine in memory whereby, for each state of said state machine, a message associated with that state is categorized as one of a triggering message, a non-triggering message and an error message, establishing a translation table in said memory whereby an address formatted in said first protocol has a one-for-one correspondence with an address formatted in said second protocol, processing said request in accordance with said translation table and said state machine and permitting communication between said first and second endpoints utilizing a realtime transport protocol. In the event media is terminated at said interworking gateway server, the interworking gateway server, in one embodiment, comprises a media switching fabric for switching media terminated at the gateway to an addressed endpoint capable of receiving it.

摘要翻译： 用于基于第一和第二协议的网络的互通功能（IWF），例如基于H.323协议的网络和基于SIP协议的网络包括互通网关服务器，其包括用于定义每个呼叫处理状态的状态机和翻译表 用于翻译每个协议格式化的地址。 一种用于所述基于第一协议的网络和所述基于第二协议的网络之间的互通中的交互工作的方法包括以下步骤：在所述互通网关服务器处接收服务于基于第一和第二协议的网络的基于第一或第二协议的端点的请求 网络，在存储器中建立状态机，由此，对于所述状态机的每个状态，与该状态相关联的消息被分类为触发消息，非触发消息和错误消息之一，在所述存储器中建立转换表 由此在所述第一协议中格式化的地址与所述第二协议格式化的地址具有一一对应关系，根据所述转换表和所述状态机处理所述请求，并且利用实时的方式允许所述第一和第二端点之间的通信 传输协议。 在媒体终止于所述互通网关服务器的情况下，在一个实施例中，互通网关服务器包括用于将终端于网关处的媒体切换到能够接收它的寻址端点的媒体交换结构。

公开(公告)号：US07953111B2

公开(公告)日：2011-05-31

申请号：US11228673

申请日：2005-09-16

申请人： Hemant Agrawal ,  Radhika R. Roy ,  Vipin Palawat

发明人： Hemant Agrawal ,  Radhika R. Roy ,  Vipin Palawat

IPC分类号： H04J3/22

CPC分类号： H04L65/1033 ,  H04L29/06 ,  H04L29/06027 ,  H04L29/12594 ,  H04L45/741 ,  H04L61/106 ,  H04L61/30 ,  H04L65/1006 ,  H04L65/1009 ,  H04L65/1043 ,  H04L65/1069 ,  H04L65/1073 ,  H04L69/08 ,  H04Q11/04 ,  H04Q2213/1302 ,  H04Q2213/13034 ,  H04Q2213/1304 ,  H04Q2213/13103 ,  H04Q2213/13196 ,  H04Q2213/13204 ,  H04Q2213/13216 ,  H04Q2213/13389

摘要： An interworking function (IWF) for a first and second protocol based network, for example, an H.323 protocol based network and an SIP protocol based network comprises an interworking gateway server including a state machine for defining each call processing state and a translation table for use in translating addresses formatted in each protocol. A method of interworking for use in interworking between said first protocol based network and said second protocol based network comprises the steps of receiving at said interworking gateway server serving said first and second protocol based networks a request from an endpoint in the first or second protocol based networks, establishing a state machine in memory whereby, for each state of said state machine, a message associated with that state is categorized as one of a triggering message, a non-triggering message and an error message, establishing a translation table in said memory whereby an address formatted in said first protocol has a one-for-one correspondence with an address formatted in said second protocol, processing said request in accordance with said translation table and said state machine and permitting communication between said first and second endpoints utilizing a realtime transport protocol. In the event media is terminated at said interworking gateway server, the interworking gateway server, in one embodiment, comprises a media switching fabric for switching media terminated at the gateway to an addressed endpoint capable of receiving it.

摘要翻译： 用于基于第一和第二协议的网络的互通功能（IWF），例如基于H.323协议的网络和基于SIP协议的网络包括互通网关服务器，其包括用于定义每个呼叫处理状态的状态机和翻译表 用于翻译每个协议格式化的地址。 一种用于所述基于第一协议的网络和所述基于第二协议的网络之间的互通中的交互工作的方法包括以下步骤：在所述互通网关服务器处接收服务于基于第一和第二协议的网络的基于第一或第二协议的端点的请求 网络，在存储器中建立状态机，由此，对于所述状态机的每个状态，与该状态相关联的消息被分类为触发消息，非触发消息和错误消息之一，在所述存储器中建立转换表 由此在所述第一协议中格式化的地址与所述第二协议格式化的地址具有一一对应关系，根据所述转换表和所述状态机处理所述请求，并且利用实时的方式允许所述第一和第二端点之间的通信 传输协议。 在媒体终止于所述互通网关服务器的情况下，在一个实施例中，互通网关服务器包括用于将终端于网关处的媒体切换到能够接收它的寻址端点的媒体交换结构。