Patent application number | Description | Published |
20100118742 | System and Method for Monitoring Call Flow in Heterogeneous Environments - The call states of all devices in a call are monitored and reported even when the devices belong to networks that use different types of call identifiers. A first device and a second device are different types of devices selected from a group of types comprising: a legacy device type, a SIP basic device type, and a SIP advanced device type. In response to a request-from an application to monitor the first device and a request to establish a call between the first device and the second device, a Universal Call Identifier (UCID) is generated for the call and the call is established. A request to monitor the second device is sent using the UCID. When a change in the call state of the second device is detected, the change of the call state is reported to the application based on the UCID. | 05-13-2010 |
20130173812 | SIP TRANSFER IN A BACK-TO-BACK USER AGENT (B2BUA) ENVIRONMENT - The system generates a change in the SIP INVITE message during a call transfer. Here, a user relation element involved in the call can change the header information in the message to include the endpoint view of the transferring party. Thus, the INVITE message is redirected to the transferring party's user relation element, which can interpret the received message and “unravel” the B2BUAs in the existing call path. The system includes changes in the user relation element to effect the message change and interpret the message once received. Changes to the user relation element forgo the need to change the communication endpoints. | 07-04-2013 |
20130254302 | SUPPORTING INTERMEDIATE BACK TO BACK USER AGENTS BETWEEN USER AGENTS AND A CONFERENCE FOCUS - A communication system, method, and components are described. Specifically, a communication system having one or more Back-to-Back User Agents (B2BUAs) therein is described. The communication system also includes an RFC 4579 conference focus. Mechanisms are described which enable User Agents (UAs) to subscribe to conference state events and create ad-hoc conferences even though the conference focus is operating in a B2BUA environment. | 09-26-2013 |
20140047122 | HIGH AVAILABILITY SESSION RECONSTRUCTION - A first message is received at a primary container that is replicated by a secondary container. The first message is an initial message to initiate a first session. The first message is processed by an application in the primary container. At a point in time, the primary container is unavailable and the system and method detect that the primary container is unavailable. A second message is received. The second message is associated with the first session. The second message is modified by moving at least a portion of a header in the second message into a different header in the second message and adding an additional header to the second message in response to the primary container being unavailable. | 02-13-2014 |
20140095723 | BYPASSING OR REDIRECTING A COMMUNICATION BASED ON THE FAILURE OF AN INSERTED APPLICATION - The system and method allow enhanced capabilities for Session Initiation Protocol (SIP) dialogs (communication sessions) between SIP devices. The SIP dialogs have applications that are inserted into the SIP dialog such as a Back-to-Back User Agent (B2BUA) or a proxy application. After the initial dialog is established and these applications fail or become unavailable, the system and method allow the applications to be bypassed or have the SIP dialog redirected to an alternative application. This provides a better user experience because the SIP dialog (e.g., a SIP telephone call) will not be dropped if the application fails mid-dialog. | 04-03-2014 |
20150188902 | CONTROLLING ACCESS TO TRAVERSAL USING RELAYS AROUND NETWORK ADDRESS TRANSLATION (TURN) SERVERS USING TRUSTED SINGLE-USE CREDENTIALS - Embodiments disclosed provide access to Traversal Using Relays around Network Address Translation (TURN) servers using trusted single-use credentials, and related methods, systems, and computer-readable media. In one embodiment, a method comprises receiving, by a TURN authentication agent, a request for a TURN server credential. Responsive to determining that the request is authorized, the agent generates a trusted single-use credential and transmits it to the requestor. Using this trusted single-use credential allows untrusted clients to access a TURN server without exposing a userid/password combination. In another embodiment, a method comprises receiving, by the TURN server, a request for a TURN service. The server challenges the request, and receives a userid and a password. Responsive to determining that the userid and the password constitute a trusted single-use credential and responsive to determining that the request is authorized, the server provides the TURN service for the requestor. | 07-02-2015 |
20150304359 | APPLICATION OF ENTERPRISE POLICIES TO WEB REAL-TIME COMMUNICATIONS (WebRTC) INTERACTIVE SESSIONS USING AN ENTERPRISE SESSION INITIATION PROTOCOL (SIP) ENGINE, AND RELATED METHODS, SYSTEMS, AND COMPUTER-READABLE MEDIA - Application of enterprise policies to Web Real-Time Communications (WebRTC) interactive sessions using an enterprise Session Initiation Protocol (SIP) engine, and related methods, systems, and computer-readable media are disclosed. In one embodiment, a method comprises receiving, by session token converter of enterprise device, an incoming WebRTC session description token. The method comprises generating, by session token converter, outgoing SIP request message. The method comprises sending, by session token converter, outgoing SIP request message to enterprise SIP engine and applying, by enterprise SIP engine, enterprise policies based on outgoing SIP request message. The method comprises, responsive to applying enterprise policies, sending incoming SIP request message to enterprise device. The method comprises converting, by session token converter, incoming SIP request message into outgoing WebRTC session description token, and sending outgoing WebRTC session description token to a target device. | 10-22-2015 |
20150304379 | PROVIDING WEB REAL-TIME COMMUNICATIONS (WebRTC) MEDIA SERVICES VIA WebRTC-ENABLED MEDIA SERVERS, AND RELATED METHODS, SYSTEMS, AND COMPUTER-READABLE MEDIA - Providing Web Real-Time Communications (WebRTC) media services via WebRTC-enabled media servers, and related systems, methods, and computer-readable media is disclosed herein. In one embodiment, a system for providing WebRTC media services comprises a WebRTC-enabled media server including a scripting engine, a WebRTC functionality provider, and a control application programming interface (API). The WebRTC-enabled media server is configured to receive, from a WebRTC application server, a stream establishment application, and to establish, via the stream establishment application, a plurality of WebRTC interactive flows associated with a corresponding plurality of WebRTC clients. The WebRTC-enabled media server is also configured to apply a media service to one or more of the plurality of WebRTC interactive flows to generate one or more media server flows, and provide the media server flows to one or more of the plurality of WebRTC clients. The WebRTC-enabled media server may thus provide functionality via familiar WebRTC control interfaces. | 10-22-2015 |