Call overflow refers to the situation in which a company or organization receives a higher volume of incoming calls than it can handle with its available resources. This can occur during peak hours, when there is a sudden surge in customer inquiries, or when there is a shortage of staff to answer calls. As a result, some calls may go unanswered or be put on hold for an extended period of time, leading to frustration for both the caller and the company. To manage call overflow, businesses may use strategies such as call routing, call queuing, or outsourcing to ensure that all calls are handled efficiently and effectively.