APPROACH Employees and spouses of two large organizations are invited to participate in a trial of a telephone quitline. Participants are randomized to one of two coaching styles. A protocol-driven (Directive) coaching approach follows a script for each of seven calls over 9 weeks. A participant-centered (Nondirective) coaching approach allowed smokers to select topics of interest, with prompting by the coach as needed. A computer assisted telephone interview program and database provide topics in correct sequence for directive coaching, allow coaches to indicate topics during nondirective coaching, and track time spent on topics in both conditions.