A virtual business phone system is a cloud-based service that allows businesses to manage their phone calls, messages, and voicemails from anywhere. It offers features like call forwarding, call recording, and auto-attendant. With voice rules, businesses can set specific instructions for how calls are handled based on the time of day, the caller's identity, or other criteria. This helps to streamline communication and improve customer service.

Source: https://www.voicerules.com/virtual_phone_number