This document discusses mHealth (mobile health) technologies and their implementation in Cambodia and other countries. It provides examples of mHealth projects that use SMS, voice calls, and smartphone apps to facilitate: (1) routine infectious disease reporting from health centers; (2) grassroots malaria case reporting and referral of patients; (3) inventory alerts of malaria drug stocks; (4) reproductive health services and education for families; and (5) health information and services for garment factory workers, new mothers, and diabetics. The document emphasizes using simple mobile technologies to enhance information sharing and improve health services for communities with limited Internet access or literacy.