Emergency alert for voice over internet protocol (VoIP)

摘要

A voice over Internet Protocol (VoIP) positioning center (VPC) is implemented in configuration with support from a text-to-voice module, emergency routing database, and VoIP switching points (VSPs) to allow a public safety access point (PSAP) or other emergency center to effectively communicate the nature of an emergency alert notification and the area of notification to the VoIP positioning center (VPC). The inventive VPC in turn determines which phones (including wireless and/or VoIP phones) are currently in the area for notification, and reliably and quickly issues the required warning to all affected wireless and VoIP phones.

主权项

1. A method to alert a plurality of phones currently located within a given geographic region, comprising:
receiving an emergency alert message passed to a voice over Internet Protocol (VoIP) positioning center (VPC) in communication with at least one automatic location identification (ALI) database; receiving, at said VPC, a given geographic region to be alerted; determining a target plurality of destination phones to be contacted based on a match of a digitally stored current location of each of a plurality of VoIP phones in said VPC, to said given geographic region; passing, from said VPC, said emergency alert message to those of said target plurality of destination phones determined to have a digitally stored current location that is within said given geographic region; and retrying an unsuccessful attempt to pass said emergency alert VoIP data to any given one of said target plurality of destination phones.