WO2003058921A2 - Personal user agent - Google Patents
Personal user agent Download PDFInfo
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- WO2003058921A2 WO2003058921A2 PCT/US2002/040882 US0240882W WO03058921A2 WO 2003058921 A2 WO2003058921 A2 WO 2003058921A2 US 0240882 W US0240882 W US 0240882W WO 03058921 A2 WO03058921 A2 WO 03058921A2
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- WIPO (PCT)
- Prior art keywords
- media
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- session
- requested
- user
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Classifications
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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
- H04L67/14—Session management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/40—Network security protocols
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D11/00—Passenger or crew accommodation; Flight-deck installations not otherwise provided for
- B64D11/0015—Arrangements for entertainment or communications, e.g. radio, television
- B64D11/00155—Individual entertainment or communication system remote controls therefor, located in or connected to seat components, e.g. to seat back or arm rest
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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
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/564—Enhancement of application control based on intercepted application data
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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
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/567—Integrating service provisioning from a plurality of service providers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/24—Negotiation of communication capabilities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
- H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
- H04L69/329—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the application layer [OSI layer 7]
Definitions
- the present invention relates to controlling packet-switched media sessions, and in particular, relates to a personal user agent for controlling media sessions amongst an associated group of devices.
- the present invention relates to a personal user agent acting on behalf of a group of member device agents in a communication network.
- the personal user agent provides its group of member device agents with a specialized proxy function while representing the group to the network as a single user agent.
- the personal user agent behaves and is viewed as a user agent .
- the personal user agent behaves and is viewed as both a registrar and a proxy server.
- the personal user agent understands the make-up of the group of member device agents, the member device agents need not have knowledge of each other or that they are being represented by the personal user agent to non-member devices.
- the personal user agent is configured to route incoming messages to one or more of the member device agents based on the capabilities of each of the particular member device agents.
- a user may configure the personal user agent to establish preferences or priorities for handling media or establishing sessions amongst the member devices.
- all member device agents register with the personal user agent prior to communicating.
- the personal user agent will then register with a proxy to provide an address or addresses to reach the user.
- all incoming messages from the network are directed to the personal user agent before being passed to the appropriate member device agent .
- the member device agents locally configure themselves to send all requests to the personal user agent.
- the personal user agent will appear as a proxy, handling all the responsibilities of a traditional network proxy.
- a user may add additional capabilities to a session through the existing member device agent, or by adding an additional member device agent to the session.
- the other user involved in the session may also add media to the session by sending a message to the personal user agent requesting additional media to be added to the session.
- the personal user agent will determine if an additional member device agent needs to be brought into the session based upon which member device agent is preferred for the requested media type and establish the session with the additional member device or the existing device.
- FIGURE 1 is a block representation of a communication environment configured according to one embodiment of the present invention.
- FIGURE 2 is a simplified communication environment for an exemplary embodiment of the present invention.
- FIGURE 3 is an exemplary communication flow diagram wherein User Y uses a single desktop application to make an audio and video call to User X, who uses a video application for video and a telephone for audio according to a preferred embodiment of the present invention.
- FIGURE 4 is an exemplary communication flow diagram wherein User X originates a call from a telephone and a video application is automatically brought into the communication session according to a preferred embodiment of the present invention.
- FIGURE 5 is a block representation of a composite system capable of implementing a personal user agent according to one embodiment of the present invention.
- the present invention provides for an agent that acts on behalf of a group of associated devices on a communication network.
- the agent provides its group of devices with a specialized proxy function, while representing the group to the network as a single entity.
- the agent routes incoming messages to the various devices based on the device's media capability.
- One or more communication sessions may be established via the agent between one or more devices based on the type of media session.
- the concepts of the present invention are applicable to various communication environments and related protocols.
- a packet-switched network 12 is provided in association with a proxy 14, which facilitates media sessions between any number of endpoints 16A-16D.
- These endpoints 16 may support any one or a combination of data, audio, and voice media sessions, depending on the configuration of the device.
- typical endpoints 16 may take the form of a personal computer (PC) 16A, a direct or wireless packet-switched compatible telephone 16B, a PDA 16C, or a gateway 16D capable of supporting any number of telephony devices or providing an interface to other networks, as will be described in more detail below.
- PC personal computer
- PDA 16C personal digital converter
- gateway 16D capable of supporting any number of telephony devices or providing an interface to other networks, as will be described in more detail below.
- a generic endpoint will be referenced as 16.
- An endpoint 16 is capable of running an application, which is generally referred to as a device agent 18, capable of facilitating media sessions using a corresponding protocol.
- the term device agent, or member device agent as used below may represent any type of protocol agent, interface, or communication function, supporting media capabilities for a device either directly or indirectly via a gateway, proxy, or the like.
- Device agents 18 typically register their ability to establish sessions with the proxy 14 to inform the proxy 14 of the universal resource locator (URL) that identifies the device agent 18 to the network 12.
- the device agent 18 may also provide information about how it can be reached over the network 12. The information typically includes the Internet Protocol (IP) address and port that the user agent 18 will use for media sessions.
- IP Internet Protocol
- the device agent 18 initiating the session will send a request to the proxy 14 and specify the targeted device agent 18.
- Identification of the device agent 18 may take the form of a URL.
- the proxy 14 will use the URL provided in the message to determine if the targeted device agent 18 is registered with the proxy 14.
- the user name is unique within the name space of the specified domain.
- the proxy 14 will send a message directly to the targeted device agent 18 to establish a session between the respective device agents 18.
- Media capabilities are passed between the two user agents 18 of the respective endpoints 16. Once respective endpoints 16 are in an active session with each other and have determined each others capabilities, the specified media content may be exchanged during an appropriate media session.
- the present invention provides for a personal user agent 20, which is an application program that acts on behalf of a group of device agents 18, designated as member device agents 18'.
- the personal user agent 20 provides its group of member device agents 18 ' with a specialized proxy function while representing the group to other device agents 18 over the network 12 as a single device agent 18.
- Each member device agent 18' is a device agent 18 that has registered with and is being represented by the personal user agent 20.
- the personal user agent 20 behaves and is viewed as a single device agent 18 having the media capabilities of all of the member device agents 18' .
- Other device agents 18 interacting with the personal user agent 20 need not have knowledge of the individual member device agents 18 ' represented by the personal user agent 20.
- the personal user agent 20 and the associated endpoints 16 implementing the member device agents 18 ' form a user domain 22.
- the personal user agent 20 behaves and is viewed as both a registrar and a proxy server.
- the personal user agent 20 is aware of the member device agents 18' within the user domain 22; however, the member device agents 18' need not be aware of each other, even when two or more of the member device agents 18 ' are involved in associated multimedia sessions.
- the personal user agent 20 is configured to route incoming messages configured to establish a media session or sessions to one or more of the member device agents 18' based on the capabilities of the respective member device agents 18'.
- the personal user agent 20 is viewed by devices with which it interfaces as either a device agent 18 or a network proxy 14, as defined in their supporting protocols.
- the personal user agent 20 includes three components: a session manager, a call manager, and a data manager.
- a session is generally defined as an exchange of messages between the personal user agent 20 and another entity.
- the session manager will handle the reception of incoming messages and transmission of outgoing messages for each protocol supported by the personal user agent 20.
- the session manager will notify the call manager when messages have been received or transmitted, and maintain a list of active sessions, which are each preferably identified by session identification (ID) .
- ID session identification
- the session manager may also be responsible for storing and providing access to all messages received or transmitted for each session.
- a call is generally defined as a set of all sessions and media streams used between two end users.
- a call manager may be responsible for maintaining a list of active calls and the sessions and media streams associated with each call, as well as deciding what course of action to take when an event occurs.
- the events may include, for example, an incoming message being reported by the session manager.
- the call manager may also provide an interface with addressing applications, such as Microsoft Outlook's contact list, when a destination address is needed.
- the data manager may provide an interface to the user to allow for the provisioning of device addresses, the user's public address, call configurations, and any other provision data.
- the data manager may handle dynamic and static presence information for each device in the user domain 22 and store the call configurations, such as profiles, to be used when originating calls based on the device used to originate the call .
- the data manager may also store call configurations to be used when terminating calls based on the termination address used.
- the call configurations may define associated devices necessary to facilitate related media sessions.
- various types of media sessions may be established through numerous devices. As noted, these sessions may be facilitated through direct or wireless packet-switched networks using IP, Wireless Application Protocol (WAP), and the like.
- WAP Wireless Application Protocol
- Communications extending to other networks may be facilitated through a gateway 16D, which also runs an application implementing a member device agent 18 ' .
- the gateway 16D may be configured to facilitate communications between the network 12 and a disparate network, such as the public switched telephone network (PSTN) 24.
- PSTN public switched telephone network
- audio and data communications may be facilitated through devices supported by the PSTN 24, such as telephony device 26.
- the gateway 16D may directly support one or more telephony devices 28.
- these telephony devices 26, 28 incorporate circuit-switched communications, wherein the gateway 16D must be configured to translate between packet- and circuit-switched communications.
- the PSTN 24 may support, include, or otherwise be associated with wireless communication networks facilitating circuit-switched communications. These wireless circuit-switched networks facilitate communications with mobile terminals 30, such as wireless telephones and PDAs, through base stations 32 in traditional fashion.
- the personal user agent 20 is provisioned with the following information. First, the address of each endpoint 16 and the media or medias it supports. This may be accomplished by having each endpoint 16 dynamically register with the personal user agent 20, as well as providing static provisioning. Second, the personal user agent 20 should be provided the public addresses that others will use to contact the user associated with the user domain 22. The personal user agent 20 will register these addresses with the network proxy 14. The present invention allows the user to have one or more addresses; however, the user may choose to use only a single address, even though multiple endpoints 16 and medias may be used.
- the personal user agent 20 should have a list of medias and endpoints 16 that a user wishes to use when originating a call from any one of the various endpoints 16.
- the personal user agent 20 should have a list of medias that are permitted when terminating a call based upon the termination address being used.
- the personal user agent 20 should have a list of devices to be used for each media when terminating a call based upon the termination address used. Preferences may also be indicated for each device in the list based upon where the user may be when a call is received. The call manager function may use this information, plus the availability of each device, if known, at the time of the call to determine which device to use.
- each member device agent 18' within the user domain 22 that wish to be represented by the personal user agent 20 must register with the personal user agent 20.
- each member device agent 18' may send a registration message to the personal user agent 20, or the personal user agent 20 may be configured with registration data corresponding to each member device agent 18 ' .
- the personal user agent 20 should register with the proxy server 14 to provide the various addresses corresponding to the member device agents 18 ' within the user domain 22.
- Once registration is complete all incoming session requests from the network 12 are directed to the personal user agent 20 before being passed to the appropriate member device agents 18'.
- a member device agent 18' that has registered with the personal user agent 20 may also register with the proxy 14 using another address. This allows the personal user agent 20 to be bypassed when desired.
- All member device agents 18 ' are configured to send session requests to the personal user agent 20. From the viewpoint of the member device agents 18', the personal user agent 20 acts as a proxy handling all the traditional responsibilities of a traditional network proxy 14. In most cases, the personal user agent 20 will pass all incoming requests from its member device agents 18' to the network proxy 14; however, it may be desirable for the personal user agent 20 to send session requests directly to a remote user agent 18 using a corresponding URL, if such capability is desired.
- the personal user agent 20 is differentiated from traditional proxies in that it can be configured to route session requests to one or more of its member device agents 18 ' based upon capabilities of the respective member device agents 18 ' .
- a proxy has the ability to fork session requests when more than one user agent 18 is registered using the same address, but the choice is to either send the request to all, such as a multicast session, or to just one, such as a unicast session, wherein the decision is made independently of the capabilities of each user agent 18.
- the personal user agent 20 is different, in that it examines content information of incoming messages and routes the message to the preferred member device agent 18 ' that handles the media type specified in the message. If more than one media type is requested, the personal user agent 20 may route the message to each member device agent 18 ' that is preferred for each media type.
- the user domain 22 includes member device agents 18' supporting common media types
- various types of profiles and preferences may be defined in the personal user agent 20.
- the profiles and preferences may dictate selection of a member device agent 18' based on priority, timing, availability, and the like. For example, a first of two member device agents 18' supporting a common media type may be selected during normal work hours, while the other may be selected during non-work hours.
- the profiles or preferences may also make these selections based on the need for additional media capabilities or the source of incoming media. Those skilled in the art will recognize numerous variations and combinations for such profiles and preferences .
- the manner in which the personal user agent 20 determines which member device agent 18 ' is preferred for each media type is a matter of implementation.
- the preferences or profiles can be provisioned on each personal user agent 20, or the personal user agent 20 could query the capabilities of each member device agent 18 ' . If the personal user agent 20 receives a message with a media type that is not supported by any of its member device agents 18', the personal user agent 20 could respond with a message indicating that the media type is not supported.
- a composite system 38 which represents any type of computing device, is used to implement the personal user agent 20A.
- the composite system 38 forms the user domain 22 with two endpoints 16: an audio device 34 implementing a member device agent 18A' , and a video device 36 implementing a member device agent 18V.
- the device agents 18A' and 18V for the respective audio device 34 and video device 36 have registered with the personal user agent 20A of composite system 38.
- the user associated with the user domain 22 and the personal user agent 20A is User X.
- the user domain 22 for User X has audio capability through audio device 34 and video capability through video device 36.
- the video device 36 is a video camera running on composite system 38, which is a personal computer.
- the personal user agent 20A recognizes the respective devices and their capabilities, and has registered with the proxy 14 as a single device agent on behalf of both the audio device 34 and video device 36.
- the device agent 18A/V resident on A/V device 40 of User Y originates a multimedia session from an audio and video application to User X using User X's public IP address by sending a SETUP message containing an audio and video session description (step 100) .
- the network proxy 14 will route the message to the personal user agent 20A residing on the composite system 38 of User X.
- the personal user agent 20A Upon receipt of the message, the personal user agent 20A will check a profile identifying terminations that use User X's public IP address. Assuming both audio and video terminations are possible, the personal user agent 20A determines which of the endpoints should be used to establish sessions based on the available endpoints, their capabilities, the state of the endpoints, the location of User X, or a combination thereof. Those skilled in the art will recognize other selection criteria. For this example, assume that User X is in his office and has chosen to use the audio device 34, such as a telephone, for audio sessions and the video device 36, such as an application on a computer and associated camera, for video sessions.
- the audio device 34 such as a telephone
- the video device 36 such as an application on a computer and associated camera
- the audio and video devices 34 and 36 include the audio and video device agents 18A' and 18V , respectively.
- the personal user agent 20A creates an audio session with the audio device 34 via the audio device agent 18A' .
- the audio session is initiated by sending a SETUP message including a description of the audio session to the audio device agent 18A' (step 102) .
- the audio device agent 18A' will send an ALERTING message to the personal user agent 20 indicating that the audio device agent 18A' is attempting to the establish the session (step 104) .
- the audio device 34 may ring to alert User X of the incoming session or call.
- the personal user agent 20A will forward the ALERTING message to the device agent 18A/V for User Y on behalf of the audio device agent 18A' (step 106) .
- the audio device agent 18A' Once the audio device agent 18A' establishes the termination for the audio session, it will send an ANSWER message including a description for the audio session to the personal user agent 20A (step 108) .
- the video session is initiated by sending a SETUP message including a description of the video session to the video device agent 18V (step 110) .
- the video device agent 18V Once the video device agent 18V establishes the termination for the video session, it will send an ANSWER message including a description for the audio session to the personal user agent 20A (step 112).
- the personal user agent 20 Upon determining that the terminations for the audio and video sessions are established, the personal user agent 20 will forward and ANSWER message including the audio and video descriptions to the device agent 18A/V of User Y (step 114) .
- the device agent 18A/V of User Y will initiate an ACKNOWLEDGE message for the audio and video sessions to the personal user agent 20A (step 116) .
- the personal user agent 20A will then send an ACKNOWLEDGE message for the video session to the video user agent 18V (step 118) and send an ACKNOWLEDGE message for the audio session to the audio user agent 18A' (step 120) .
- an audio session is established between the audio device agent 18A' of User X and the device agent 18A/V of User Y
- a video session is established between the video device agent 18V of User X and the device agent 18A/V of User Y.
- FIG. 4 an exemplary communication flow diagram is illustrated wherein User X originates a call from a telephone 34 and subsequently a video application is automatically brought into the communication session.
- User X initiates a call from the audio device 34 to User Y' s A/V device 40.
- the audio device agent 18A' resident on audio device 34 originates a multimedia session to User Y using User Y's public IP address by sending a SETUP message containing an audio session description to the personal user agent 20A (step 200) .
- the personal user agent 20A may then check profiles associated with originations made from the audio device 34.
- the personal user agent 20A determines which of User X's endpoints should be used to handle the video session. For the present example, assume that video device 36 and the composite device 38 combine to provide a bi-directional video session. Again, the personal user agent 20A determines which of the endpoints should be used to establish the video session based on the available endpoints, their capabilities, the state of the endpoints, the location of User X, or a combination thereof.
- the personal user agent 20A will set a flag to automatically establish the video session in association with the call once User Y answers. Alternatively, the personal user agent 20A could decide to establish the video session prior to establishing the call . Assuming the call should be answered prior to continuing, the personal user agent 20A will then send a SETUP message with an audio session description to the device agent 18A/V (step 202) , which will respond by initiating ringing, or like alert for User Y, and sending an ALERTING message back to the personal user agent 20A (step 204) . The personal user agent 20A will forward the ALERTING message to the audio device agent 18A' (step 206) .
- the device agent 18A/V When User Y answers the call, the device agent 18A/V will send an ANSWER message including the audio session description to the personal user agent 20A (step 208) , which will forward the ANSWER message to the audio device agent 18A' (step 210) .
- the audio device agent 18A' will respond by sending an ACKNOWLEDGE message to the personal user agent 20A (step 212), which will forward the ACKNOWLEDGE message to the device agent 18A/V (step 214) .
- the audio session between User X and User Y is established and the personal user agent 20A will initiate the video session.
- the personal user agent 20A may send a SETUP message with a null video description to the video device agent 18V (step 216) , which will trigger the video device agent 18V to send an ANSWER message containing the appropriate video session description to the personal user agent 20A (step 218) .
- the personal user agent 20A will send a SETUP message, including the audio and video session descriptions for the established audio session and the requested video session, to the device agent 18A/V of User Y (step 220) .
- the device agent 18A/V will send an ANSWER message including its audio and video session descriptions to the personal user agent 20A (step 222) , which will send ACKNOWLEDGE messages to the device agent 18A/V of User Y (step 224) and the video device agent 18V of User X (step 226) . At this point both the audio and video session are established between the respective devices of User X and User Y.
- a typical composite system 38 may include a control system implemented with a central processing unit (CPU) 46 associated with memory 48.
- the memory 48 would contain the necessary software 50 and data 52 for implementing the personal user agent 20.
- a network interface 54 is also associated with the CPU 46 to facilitate packet-switched communications over the network 12.
- the present invention provides for integrating and aggregating end user communication devices on a per user basis in order to provide numerous benefits and capabilities.
- a user may be contacted using a single address, regardless off which means of communication is being used and regardless of the user's location.
- userX@nortelnetworks.com is an address used to place a voice call to User X whether he is in the office, can be reached on his mobile terminal, or is at home.
- the technique can also be used when sending an instant message to User X at any location.
- users may engage in a multimedia communication session using disparate collections of single and multiple media communication devices.
- User Y uses a single desktop application to make a voice and video call to User X, who uses a video application for video and an office telephone for audio.
- the user may also configure unique sets of media and the respective devices to be used when starting a communication session, based on which communication device is used to originate the session. For example, if User X originates a call from his office phone, his video application on his personal computer is automatically brought into the communication session. If he originates a call from his mobile phone, no additional devices are brought into the session.
- a user may configure unique sets of media to be permitted when accepting a communication session based on the address used to establish the session.
- video and audio is permitted when User X's business address is used, but only audio is permitted when his home address is used.
- a user may configure a list of devices to be considered for use. From this list, dynamic presence information can be used to determine which device to use. For example, assume that User X has configured a list of all his audio devices to be used when audio calls are made to his business address. The call will be sent to his desk telephone unless he is away from his desk and his mobile phone is active, in which case the calls will be sent to his mobile telephone.
- Various techniques for presence detection may be used, such as monitoring keyboard activity or the activation of a screen saver.
- a user may add additional media to communication sessions without having to make an additional call or specify an address.
- application sharing can be added to an audio call using the existing signaling session already established. Thus, a separate call is not needed.
- the address that is used when placing the audio call is reused again when adding the application sharing session.
- the user may initiate a call from a device or application for the sole purpose of providing an address for the call, while other devices are actually used in the communication session. For example, selecting User Y from Microsoft Outlook's contact list may cause User X's office telephone to ring, and upon answer, establish a multimedia call with User Y.
- This capability supplies an address book capability to devices that do not have one. It can also be used with devices that have their own address capability, but wherein the user wishes only to use and maintain a single address book across all devices .
- the user may also configure a controlling media type that when placed on hold, released, etc., will cause all other media in the communications to be treated in the same manner.
- a controlling media type that when placed on hold, released, etc., will cause all other media in the communications to be treated in the same manner.
- User X and User Y are involved in an audio and video communication session, and User X has configured audio to be his controlling media type.
- User X hanging up his phone his associated video device is also released, and the session with User Y will end. If User X has closed his video application first, he would still keep the audio connection with User Y, if so desired.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002471550A CA2471550A1 (en) | 2001-12-27 | 2002-12-19 | Personal user agent |
EP02806187A EP1477007B1 (en) | 2001-12-27 | 2002-12-19 | Personal user agent |
AU2002367262A AU2002367262A1 (en) | 2001-12-27 | 2002-12-19 | Personal user agent |
DE60210343T DE60210343T2 (en) | 2001-12-27 | 2002-12-19 | PERSONAL USER AGENT |
NO20042855A NO20042855L (en) | 2001-12-27 | 2004-07-06 | Personal user agent as registrar and proxy server |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/036,247 US7299286B2 (en) | 2001-12-27 | 2001-12-27 | Personal user agent |
US10/036,247 | 2001-12-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2003058921A2 true WO2003058921A2 (en) | 2003-07-17 |
WO2003058921A3 WO2003058921A3 (en) | 2003-12-04 |
Family
ID=21887517
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2002/040882 WO2003058921A2 (en) | 2001-12-27 | 2002-12-19 | Personal user agent |
Country Status (7)
Country | Link |
---|---|
US (1) | US7299286B2 (en) |
EP (1) | EP1477007B1 (en) |
AU (1) | AU2002367262A1 (en) |
CA (1) | CA2471550A1 (en) |
DE (1) | DE60210343T2 (en) |
NO (1) | NO20042855L (en) |
WO (1) | WO2003058921A2 (en) |
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- 2002-12-19 CA CA002471550A patent/CA2471550A1/en not_active Abandoned
- 2002-12-19 EP EP02806187A patent/EP1477007B1/en not_active Expired - Fee Related
- 2002-12-19 WO PCT/US2002/040882 patent/WO2003058921A2/en not_active Application Discontinuation
- 2002-12-19 AU AU2002367262A patent/AU2002367262A1/en not_active Abandoned
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US8644475B1 (en) | 2001-10-16 | 2014-02-04 | Rockstar Consortium Us Lp | Telephony usage derived presence information |
US8392609B2 (en) | 2002-09-17 | 2013-03-05 | Apple Inc. | Proximity detection for media proxies |
US8694676B2 (en) | 2002-09-17 | 2014-04-08 | Apple Inc. | Proximity detection for media proxies |
US9043491B2 (en) | 2002-09-17 | 2015-05-26 | Apple Inc. | Proximity detection for media proxies |
US9118574B1 (en) | 2003-11-26 | 2015-08-25 | RPX Clearinghouse, LLC | Presence reporting using wireless messaging |
Also Published As
Publication number | Publication date |
---|---|
AU2002367262A1 (en) | 2003-07-24 |
EP1477007A2 (en) | 2004-11-17 |
US7299286B2 (en) | 2007-11-20 |
EP1477007B1 (en) | 2006-03-29 |
CA2471550A1 (en) | 2003-07-17 |
DE60210343D1 (en) | 2006-05-18 |
NO20042855L (en) | 2004-07-06 |
DE60210343T2 (en) | 2006-10-19 |
US20050223097A1 (en) | 2005-10-06 |
WO2003058921A3 (en) | 2003-12-04 |
AU2002367262A8 (en) | 2003-07-24 |
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