Among the many tips for working in a call center, the first is to decide if a customer service career is right for you. If you're looking for a profession with relatively low barriers to entry, work-life balance, and plenty of opportunity to grow, a customer service role in a call center might be worth an application.A call center is a functional team within the service department that fields incoming and outgoing customer phone calls. They're operated by representatives who manage each call and keep track of open cases and transactions.To keep their teams organized, team leads use call center software to distribute inquiries and interact with customers all over the world.In customer service, call centers can be proactive (outbound) or reactive (inbound). This means that they can either reach out to customers with service offers, or they can offer traditional support and respond to incoming calls. Many companies now offer proactive customer services to create stronger relationships with customers and capitalize on timely opportunities to upsell and cross-sell.Additionally, call centers can be owned by the parent business or hired as a third-party provider. Depending on the organization's needs, both options provide pros and cons that influence the success of the customer service department. For example, third-party call centers are more efficient, however, they may not be as familiar with the brand's product, service, or reputation. If you're looking for a job in a call center, be sure to clarify whether it's a third-party provider or owned by the parent company.Now that we've covered the fundamentals, let's break down the types of customer service call centers.