Advanced port-based E911 strategy for IP telephony

Details Advanced port-based E911 strategy for IP telephony Advanced port-based E911 strategy for IP telephony

2006-03-06

2010-06-15

Woo, Stella L (Department: 2614)

Telephonic communications

Emergency or alarm communications

Central office responsive to emergency call or alarm

Reexamination Certificate

active

07738634

ABSTRACT:
An enterprise network includes at least one communication device208-1, an Open Systems Interconnect (OSI) Layer 2 switch206, and a corresponding enterprise switch208. The communication device208-1is connected to at least one of an access point904-1and a respective port207-1of the Layer 2 switch206. The enterprise network includes a plurality of Emergency Location Information Numbers (ELINs) corresponding to differing segments of the enterprise network. The Layer 2 switch206serves at least one of the differing segments. The communication device208-1includes a discovery agent252operable, when a predetermined first event occurs, to obtain from the Layer 2 switch206at least one of an access point identifier, a switch identifier from the Layer 2 switch206, and a port identifier identifying the respective port207-1.

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