Radio Data System (RDS) Interactive Services (IS) combines data feeds and
interactivity with programs broadcast on FM channels. An RDS-IS client
application on user equipment (e.g., handset) extracts RDS information
from the RDS enabled FM receiver, and presents content on a mobile screen
in a user-friendly format. Broadcasted RDS message can include special
strings or "anchors" for special treatment by receivers. Receivers
replace text with visuals to enhance user experience, such as cartoons or
photographic icons based on names in RadioText fields. The RDS-IS client
application generates specific prompts and composes interactive screens,
enables hot keys and decides actions (e.g., voice calls, SMS) on key
press, triggers contextual e-commerce by invoking data calls to given
URLs, and sends statistics to the operator of a two-way data channel that
provides enhanced content (e.g., CDMA reverse link, SMS, wireless access
network, etc.) based upon "anchors" or "tags" included with the RDS-IS
message.