Deaftel is a phone service that allows deaf, hard of hearing, and speech impaired individuals to communicate with anyone over the phone through text. It works by having a Deaftel user type messages on their smartphone which are then read aloud by a robot to the hearing caller, and the hearing caller's voice is transcribed to text for the Deaftel user. The service was originally created as an entry for a programming contest and gained over 500 users on the first day without any advertising due to requests from the deaf community for such a service.