Serving Sri Lanka: Indian Ocean tsunami warning capabilities improving Addressable satellite radio sets were found to be the best alerting technology of the community disaster warning pilot project conducted by LIRNEasia and Sarvodaya. Java enabled mobile phones which has a wake up siren came next. The GSM based remote alarm device developed locally by Dialog Telekom, MicroImage and University of Moratuwa followed closely. It has both light and siren.Findings of this project on learning how information-communication technologies and community based training can help in tsunami and other disaster situations had been discussed by community leaders and international experts at a workshop on “Sharing Knowledge on Disaster Warning with a Focus on Community-Based Last-Mile Warning Systems” at the Sarvodaya Headquarters in Moratuwa recently.