The feature, which is not redirecting calls to the voicemail, during the big traffic in peak hours. All calls will be put on waiting mode for the next available operator.
Call center - is a center where the company's incoming and outgoing calls are taken care of, it can be a centralized office, used for receiving and forwarding high volumes of information, incoming by the way of phone calls. There are two types of call centers internal call center and outsourced call center.