David is a voice over artist who uses an ISDN line to do his job. But when he asked for one at the phone company, they looked at him like he was crazy. Leo says that if he lives in a smaller town, they may not offer it or may just be surprised he's asking to get one. It's a speciality line and the phone company simply doesn't want to do it because of broadband. It's not required by the FCC to offer it, and because it requires a separate switch, they just don't want to do it.
Leo advises calling a local radio station and talking to an engineer. He could help him secure one because radio still uses them.