The National Association of Guide Dog Users has chosen Twilio to power their hotline, which provides critical information and support to blind individuals with guide dogs. The organization had previously struggled with a brittle and costly service provider that made it difficult to update messages and announcements, resulting in poor audio quality. After switching to Twilio, NAGDU was able to improve the hotline's audio fidelity, add flexibility to update messages, and implement call recording, which helps track down illegal denial of service issues. This new setup enables NAGDU members to easily gather evidence to advocate for their rights as blind individuals with guide dogs.