Shoretel, Inc.

Mitel Networks Corporation

Lattice Health Systems, Inc.

Pramod Madabhushi

Jason H Harper

Kent A Fritz

Dale C Tonogai

Thomas E Miller

Pascal R Crausaz

Amy S Pendleton

Chakradhar Kondapalli

Prasannakumar Mallappa

Puneet Saran Sarna

Mike S W Tovino

Jason Robert Harper

Glenn Hessler

John Michael Adriance

H Edward Hassinger

Jason Harper

Kent Fritz

A device is capable of connecting to both a WLAN and a cellular data network. Preference is given to using the WLAN. However, prior to connecting to the WLAN, the cellular data network is used to connect to a remote portal from which the device receives parameters to connect to the WLAN. The portal initiates prompts to receive the WLAN parameters that it provides to the device. Upon successfully connecting to the portal the device deactivates the cellular data connection. Upon there being network path errors on the preferred network connection, the device is capable of activating the secondary cellular data connection to the portal to report errors.

Device management using a secondary cellular data connection

In one example, a method for a conference bridge failover in a conference call system may include determining that a first conference bridge with a connection for a participant telephone has failed. The method may also include determining whether one or more conference bridge have resources to manage the connection for the participant telephone of the first conference bridge and assigning the connection for the participant telephone to the one or more conference bridge in response to the determination.

Conference call resource assignment for failover

A system to monitor bandwidth can include memory to store session data describing each communication session for at least a portion of a communication system. A bandwidth calculator can access the session data and provide a measure of bandwidth utilization computed based on the accessed session data.

Bandwidth utilization monitoring for a communication system

A conference call solution with one or more conference server, one or more conference bridge and one or more media mixer. A conference server is chosen as the conference bridge for the conference call using various optimization techniques. A media mixer for the conference call may also be chosen using various optimization techniques. The media mixer mixes media data from one or more conference bridge. If a conference bridge or the media mixer fails, the system recovers from the failure with minimal interruption to the users.

Distributed audio conferencing architecture with optimum resource utilization and seamless scalability

A conference call system with a plurality of endpoints, a switch and a media mixer is disclosed. One or more entities in the conference call system comprise part or whole of a feature module. The feature module executes various telephony features like adjusting the volume of a selected participant in a conference call, initiating a sidebar with a participant wherein other participants cannot hear the conversation of the participants in the sidebar, putting a selected call participant on hold from an endpoint other than the selected participant's endpoint, disconnecting a selected participant from an endpoint other than the selected participant's endpoint and transferring a call with two or more participants to a new participant's endpoint.

Distributed audio conferencing system

A system for bandwidth management and codec negotiation, according to one embodiment of the present invention comprises: a configuration storage module having supported codecs storage, codec lists and preferred site settings storage, and a call manager having an extension module, a trunk module, a location service engine, a codec manager, a bandwidth manager, and a media manager. The codec manager and the bandwidth manager used for negotiating a codec for a call between two endpoints. The present invention also includes a number of methods including a method for negotiating a codec for a call, a method for managing bandwidth for a call, a method for adding a description of a new codec supported by an endpoint, a method for adding an identifier of a supported codec to a codec list and a method for editing code site codec settings.

Bandwidth management and codec negotiation based on WAN topology

A system for using one or more via sites to manage network bandwidth, according to one embodiment of the present invention comprises a first call manager at a source site receiving an offer message to connect a call. The offer message includes an endpoint media settings list. The first call manager determines a first filtered media preferences list based on a source media settings list and the endpoint media settings list. The first call manager and transmits an invite message to a second call manager at a first via site. The invite message includes the first filtered media preferences list. The first call manager receives from the second call manager a call settings list that includes a description of the call settings negotiated between the source site, the first via site and a destination site.

Managing network bandwidth

A graphical user interface (GUI) for visualization of a logical topology of a system can include a plurality of node user interface elements to represent respective components in the system. The GUI can include a plurality of link user interface elements, each connected between an associated pair of the node user interface elements to represent a logical connection between a given component and at least one other component in the system. In response to a user input for a selected node user interface element, at least a portion of the plurality of link user interface elements can be modified to represent the logical connectivity and associated status such as from a perspective of the component represented by the selected node user interface element.

Logical topology visualization

A monitoring deviceprovides a shared call stack to a monitored extension and one or more proxy extensions. For example, the monitored extension is a boss' extension in a business environment, and the proxy extension is an extension for a boss' secretary. The monitoring devicedetects an incoming call for the monitored extension. The incoming call is redirected, by the monitoring device, to a shared extension that is associated with the monitored extension. The shared extension has a shared call stack. The shared call stack has a call stack position that is shared with a proxy extension. The incoming call is made available as a call option in the call stack position so that the monitored extension and the proxy extension can user the monitoring device to perform call functions on the incoming call. The monitoring device can also perform call functions on outgoing calls.

Shared call stack in a communications system

Displaying an IP call status is disclosed. An IP call status notification is received from an IP telephony device. A display update is caused by transmitting a display notification to an IP telephone.

Multiple extension and line appearance for IP telephony

A system for using one more via sites to manage network bandwidth, according to one embodiment of the present invention comprises a first call manager at a source site receiving an offer message to connect a call. The offer message includes an endpoint media settings list. The first call manager determines a first filtered media preferences list based on a source media settings list and the endpoint media setting list. The first call manager and transmits an invite message to a second call manager at a first via site. The invite message includes the first filtered media preferences list. The first call manager receives from the second call manager a call settings list that includes a description of the call settings negotiated between the source site, the first via site and a destination site.

Growing community of inventors

Austin, TX, United States of America

Pramod Madabhushi