The Social Security Administration has instituted a call back system. If you call the national toll free number at 1-800-773-1213 during office hours and the wait to speak with a representative is lengthy, this is an option you can use to have a representative call you back instead of waiting on the line. Our offices have used this option several times with great results. SSA can answer many questions regarding Social Security Disability Insurance or Social Security Retirement benefits over the phone.