There are service agencies who meet up with employers or whoever to explain to them how, if they hire deaf people, they can do this, this, and this. But I prefer to tell employers to come and visit my office.
The employer arrives at the door and they knock. Nothing. Then they see a sign that says, “If there's no answer to your knock, flip the white light switch at the side.” The light goes on and off inside the office to alert me that somebody is at the door. I go out and open the door: “Oh, come on in.”
We have a softwood floor, and when someone bangs on it, I can feel the vibration. I'll say to the employer, “Just a moment, please, someone wants to talk to me.” They wonder about this, because no one has said a word: “How does he know that somebody wants to talk to him?” I feel the banging. That's why.
Then the employer and I are ready to sit down: “Here—I have a laptop ready for you to type out your responses to me. We're connected. What you type on your screen pops up on my laptop screen. We can go back and forth.”
Then they ask me how I even set up this meeting: “I did it on the phone.” When I tell them I called through the Internet Protocol Relay Service, they say, “Oh. You can do this.”
You're not going to be charged an arm and a leg for these things. Putting in a simple light switch outside my door costs you, what, $12? You could do it yourself if you were enough of an amateur electrician.