Mitel Networks Corporation

Nortel Networks Corporation

Rockstar Consortium US LP

Robert Star

Christopher James Nason

Kenneth J Liang

Peter L Blatherwick

Kris W Kramer

Robert S Morley

Larry John David

Kenneth M Orford

William Allan

Paul Provencal

Robert Joly

Dariusz Otreba

Jainqi Yin

Jianqi Yin

Jeffrey Jay McIntosh

A method of accelerating link loss detection includes providing a plurality of IP devices in communication with a central server. The method includes: a first one of the plurality of IP devices broadcasting a link loss message to others of the plurality of IP devices when communication between the first one of the plurality of IP devices and the central server is interrupted, one of the others of the plurality of IP devices performing a verification process to confirm interruption of communication between the central server and the plurality of IP devices and upon successful completion of the verification process, the one of the others of the plurality of IP devices broadcasting a link loss confirmation message and each of the IP devices terminating communication with the central server and reconnecting to a new central server following receipt of the link loss confirmation message.

Method of accelerating control link loss detection

A method performed by a videoconferencing device, the method comprising: maintaining a database () comprising multiple records, each record including bit rate information and relating to a particular endpoint identifier; initiating a videoconference call with a target endpoint (); identifying (S) one or more records in the database () that relate to the endpoint identifier of the target endpoint (); identifying (S) one or more records in the database () that relate to the endpoint identifier of one or more endpoints located in a common zone with the target endpoint (); using bit rate information from the identified records to calculate (SSS) an initial video bit rate for the videoconference call; and initially transmitting video to the target endpoint () at the calculated initial video bit rate. Apparatus configured to implement the foregoing method.

Videoconferencing

A packetised data network includes IP telephones (ITs) and a network intelligence (NI). All of the keys of each IT are 'soft' keys (i.e., they have no fixed function). The NI associates a configuration data structure with the IT which correlates the keys with functions, and, based on this, may control the display of the IT to indicate the current function of certain of the soft keys. Some of the functions are requests for data services at the telephone (e.g., video or programmed audio over the internet). When a user requests such a service with a key press, the NI sets up the service between the data source and the telephone. This may require associating a new configuration data structure with the keys of the IT. The IT user may activate multiple data services through the NI.

Telephony and data network services at a telephone

In a client/server network, each of a plurality of IP devices has access to a network capability, such as an analog line, when connected to a central server. At least one of the IP devices is in direct communication with a second analog line and grants other IP devices access to the second analog line when the other IP devices lose their connection to the central server.

Method for sharing resources over a network

A client/server network includes a plurality of IP devices in communication with a central server and one another. Each of the plurality of IP devices maintains a count of the number of the IP devices attempting to connect to the central server at one time in order to monitor the load on the central server. Wherein each of the plurality of IP devices verifies that the count does not exceed a maximum count prior to attempting connection to the central server.

Method for distributing connection attempts to a server

A client/server network includes a plurality of IP devices in communication with a central server. The plurality of IP devices communicate with one another to queue themselves onto a linked list. The plurality of IP devices then connect to the central server in the order determined by the linked list. Prior to attempting to connect to the central server, each of the plurality of IP devices verifies that a number of IP devices currently attempting to connect to the central server is not equal to a maximum number.

Client/server queuing method to coordinate connection attempts to a server

Growing community of inventors

Kanata, Canada

Robert Star