Which term describes a call center that takes orders and responds to billing inquiries?

The term that accurately describes a call center that takes orders and responds to billing inquiries is "inbound." Inbound call centers primarily handle incoming calls from customers who are seeking assistance, placing orders, or requiring information about billing and account issues. These centers are designed to address queries, manage orders, and provide information directly to customers as they reach out for help.

In contrast, outbound call centers are focused on making calls to customers, often for sales and marketing purposes, which differentiates them from the customer service role of inbound centers. The term "support" generally encompasses a broader range of assistance, which can include both inbound and outbound activities but doesn't specifically capture the order-taking or billing inquiry functions. "Virtual," while increasingly relevant in today's digital landscape, refers to the operational model of a call center rather than its purpose or function. Thus, "inbound" is the most fitting choice for defining a call center that responds to customer inquiries regarding orders and billing.