本文件中涉及的IPTV紧急警报系统将EAS消息的传递从几个线性渠道扩展到完整的IPTV体验，涵盖从直播和录制的电视观看、游戏、互联网流媒体和源内容，甚至包括IPTV客户端菜单活动在内的全方位活动。其目标是向任何使用IPTV服务的人发送重要的紧急警报，与活动无关。

The Emergency Alert System for IPTV addressed in this document broadens the delivery of EAS messages from a few linear channels to the complete IPTV experience, spanning the full range of activities from live and recorded TV viewing, through games, internet streaming and sourced content, and even including IPTV client menu activities. The goal is to deliver important emergency alerts to any person using the IPTV service, independent of activity.