Design for Voice User Interfaces (VUIs) has become more relevant in recent years due to the enormous advances of speech technologies and their growing presence in our everyday lives. Although modern VUIs still present interaction issues, reports indicate they are being adopted by people with different disabilities and having a positive impact. For the first author's PhD research project, an ethnographic study is currently being carried out in a local charity that provides support and services to people with visual impairments. The purpose is to understand people's competencies and practices, and how these are, or could be, related to voice technologies (assistive technology and mainstream VUIs). Through direct observation and contextual interviews, we aim to investigate the problems and solutions they encounter and the ways they cope with particular situations.