Early Warning System Health Messaging
Early Warning System uses IVR to send health messages to registered users, and is sent via open source telephony software called Somleng. https://github.com/somleng/somleng-scfm.
People in Need's Early Warning System is being used by the Cambodian National Centre for Disaster Management to send Corona related health voice messages authorised by the Ministry of Health and designed by the local offices of the WHO and UNICEF.