This standard BS EN 62297-2:2005 Triggering messages for broadcast applications is classified in these ICS categories:
33.170 Television and radio broadcasting
IEC 62297-2:2005 specifies how trigger messages are broadcast using teletext technology. Both Page Format-Clear and Independent Data Line methods are defined, using protocols defined in ETSI EN 300 708. This bilingual version (2013-07) corresponds to the monolingual English version, published in 2005-05.