ATIS 0700041
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Wireless Emergency Alerts (WEA) 3.0: Device-Based Geo-Fencing
This standard specifies methods for delivering the alert originator provided circle or polygon targeted area to the mobile device along with the WEA 3.0 message text, including compression of the WEA 3.0 Warning Area Coordinate (WAC) Information Element (IE) polygons or circles.
Backwards compatibility to the existing deployed base of pre-WEA 3.0 capable devices is addressed, as existing devices must continue to display the WEA 3.0 message.
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