A name for a Pacific Bell (and possibly other local telephone companies) service which allows you to dial the last caller, even if you did not answer the telephone.

Usually initiated by going off-hook and entering "*69".

Most TELCO's charge a "per use" fee.

This code, and many others found here:
http://pgp.yashy.com/star.codes.html
or here:
http://consumer.mci.com/VOIP/PDF/Q_Ref_sheet.pdf

Peace.