Telephone Sounds & Recordings, including a collection of recordings that are representative of the late Jane Barbe, known unofficially as "The Telephone Lady". Mrs. Barbe, who died in July 2003, had produced many telephone company intercept recordings, as well as lent her voice for used in automated intercept systems, operator assisted dialing systems, and voice mail systems. This collection is representative of the period from 1973 to 1985.
I have found it helpful to do the stretching exercises my physical therapist recommends. Do some core strengthening exercises, such as the ones highlighted at The Mayo Clinic. By keeping your core strong, your back won't put itself in a position to cause that sciatica pain you are having.