Here are some simple tips to keep in mind before, during and after a Telephone Interview

Prepare well for the interview. Make sure that you are relaxed and completely focused towards giving your 100% to the upcoming interview call. Keep your phone free during the expected time of the interview call. Take out enough free time to take the interview call and make sure there are going to be no disturbances or interruptions while you are talking. Keep a copy of your resume and all other related documents in front of you.

• Make sure to keep a pen and notepad in close reach in case you need to jot down points during the course of your conversation. 
• Keep your phone fully charged so that your phone does not go low on battery, thus leading to breaks in the conversation.
• Practice those listening skills and make sure to be a good listener. Do not interrupt the interviewer. Wait for the interviewer to complete what they are saying, listen well and then answer the questions confidently. 
• Speak clearly so that you are fully understood.
• Be enthusiastic and alert.
• Refrain from using unprofessional caller tunes.
• If you are taking the call at home, try to find a quiet area whether there are no background noises that can distract you.