Answering Service - Serving Our Valued Clients Nationwide Since 1979 Direct Line TeleResponse provides more than the warmth of a personalized human voice...we provide peace of mind. Put your staff back to work and let us take care of your phones. Direct Line is your phone answering service support staff. We'll answer all of your business telephone calls, or just your phone calls after-hours and or overflow phone calls. Concentrate on your business while we answer your calls... Any day, every day, all day... our skilled telephone answering staff is on the job. It's like having a Virtual Receptionist. Serving Every Size Company Medical, Physician, Attorney, or any Trade Services Company. Direct Line is the telephone answering service to best serve your business telecommunications needs. Whether your business is a one person shop, a mid-size office, a Fortune 500, Government agency or you are a physician, attorney, doctor or emergency medical care company, Direct Line has answered for them all.