Emergency Response Support System (ERSS) seeks to enable a Pan-India, single, internationally recognized number i.e. 112 based emergency response mechanism for various  emergencies with computer aided dispatch of  field resources to a person in distress.  This service can be accessed through call, SMS, email and the 112 India Mobile app, which includes SHOUT facility for added safety to women and children. ERSS has been made operational in 27 States/UTs.

Source: PIB

Relevant for GS Prelims