This study examines the relationship between alternative approaches to employment systems and quits, dismissals and customer service, based on cross-sectional and longitudinal data from nationally representative surveys of call center establishments. Contrary to prior literature, the antecedents and consequences of quits and dismissals are quite similar. Comparing three dimensions of employment systems, we find that high involvement work organization and long-term investments and inducements are associated with significantly lower quit and dismissal rates, while short term performance-enhancing expectations are related to significantly higher quit and dismissal rates. Establishments with higher quit and dismissal rates have significantly lower customer service, as reported by managers.