This study developed and tested a theoretical model that explains the underlying process through which the use of cell phones can facilitate the capacity of community health care workers in developing regions. On the basis of a study conducted on 223 midwives in rural regions of Indonesia, the results showed that cell phone use was positively associated with midwives' access to institutional and peer information resources. Access to institutional resources was positively associated with midwives' health knowledge. Further, access to peer resources was associated with higher self-efficacy, which was positively associated with health knowledge. The study provides implications for technology intervention strategies targeted to community health workers in rural communities.