There are actually answering machines for the deaf. But to use then you have to either have a tty machine, or call it through a relay service (711). But most online forms won't accept phone numbers that include the extra digits.
Conversely, the deaf can call 711 on a tty and have the operator check, and transcribe, their voicemail. But I can understand the concern they're getting it wrong, and th fact that many just don't like their privacy invaded in that fashion, and would prefer to skip voicemail, given the ubiquity of email.
Conversely, the deaf can call 711 on a tty and have the operator check, and transcribe, their voicemail. But I can understand the concern they're getting it wrong, and th fact that many just don't like their privacy invaded in that fashion, and would prefer to skip voicemail, given the ubiquity of email.