Sonia Ben Ali's organization, Urban Refugees, aims to democratize communication for displaced people through a grassroots approach using SMS technology. The app, SMSUp, allows refugees to create their own distribution lists and share critical information within their community, empowering them to self-organize easily. By leveraging the most accessible means of communication - SMS - Urban Refugees is bridging the information gap between top-down humanitarian assistance and the actual needs of displaced people living in cities. The initiative has resonated with refugee groups worldwide, resulting in a waiting list for expansion into new areas.