Avaya Inc.

Avaya Technology LLC

Sung H Moon

Mehmet Balasaygun

Frank John Boyle

Renee Krahn

Manish Marwah

Nancy Schmidt

Scott Hendrick

Gary Becker

Robert F Liston

The present invention is directed to load balancing call signaling channels at the times that they are established, the use of variable frequency keep alive mechanisms depending on the state of the call signaling channel, and the establishment of a call signaling channel when resources are available or otherwise based on need.

Efficient load balancing and heartbeat mechanism for telecommunication endpoints

A method for providing emergency location information to an emergency service provider is provided. The method, in one implementation, includes the steps of (a) providing a plurality of sets (e.g., ranges) of OSI Layer 3 or Network Layer addresses; (b) receiving an emergency call from a calling device having an OSI Layeror Network Layer address; (c) mapping the calling address against the plurality of sets of addresses to determine an ELIN for the calling address; and (d) forwarding the ELIN to a public safety answer point. Each set of addresses comprises a plurality of addresses, and a plurality of ELINs corresponds to the plurality of sets of addresses. In each set of addresses, a corresponding one of the plurality of ELINs is typically common to a plurality of addresses.

Universal emergency number ELIN based on network address ranges

An enterprise network includes at least one communication device-, an Open Systems Interconnect (OSI) Layer 2 switch, and a corresponding enterprise switch. The communication device-is connected to at least one of an access point-and a respective port-of the Layer 2 switch. The enterprise network includes a plurality of Emergency Location Information Numbers (ELINs) corresponding to differing segments of the enterprise network. The Layer 2 switchserves at least one of the differing segments. The communication device-includes a discovery agentoperable, when a predetermined first event occurs, to obtain from the Layer 2 switchat least one of an access point identifier, a switch identifier from the Layer 2 switch, and a port identifier identifying the respective port-

Advanced port-based E911 strategy for IP telephony

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Thornton, CO, United States of America

Sung H Moon