Phone screens are the most common first step in a hiring process, and they require a different set of skills than in-person interviews. Most candidates underprepare for them because they assume the content matters more than the medium. In a phone interview, the medium matters a great deal.
What You Lose on the Phone
In person, you can see when an interviewer is tracking with you, when they look confused, or when they are starting to check out. You get constant feedback that helps you calibrate. On the phone, all of that disappears.
You also lose the ability to use physical presence, eye contact, and body language to signal confidence. Everything lands through your voice.
What to Focus On
Pace. Without visual cues, fast talkers tend to speak even faster on the phone. The listener has no body language to help them parse the flow of what you are saying. Slow down by 10-15% compared to your normal conversation pace.
Pause deliberately. After key points, pause briefly. This gives the interviewer a natural moment to interject, and it signals that you are structured and composed. Candidates who speak without natural pauses are harder to follow on the phone.
Signal transitions out loud. In person, a shift in posture or a glance away signals that you are transitioning. On the phone, you have to name it. "The second thing I would flag is..." or "Here is what that resulted in..." keeps the interviewer oriented without visual cues.
Confirm understanding before answering. On the phone, it is easier for the interviewer's question to be misheard. It is completely acceptable to say "Just to make sure I understand the question, you're asking about..." before starting your answer.
Practical Preparation
Find a quiet room. Background noise on your end is more disruptive than candidates realize. Close windows, silence notifications, and if possible, use a wired connection instead of speakerphone.
Stand up while you answer. This is counterintuitive but well-supported. People who stand during phone calls tend to project more energy and speak with more confidence. Try it once and you will understand why.
Have your resume in front of you, but resist the urge to read from it. Use it as a reference if you need a date or a specific metric, not as a script.