A phone system is a network of devices and technology that enables communication through voice calls. It can include traditional landline phones, mobile phones, and Voice over Internet Protocol (VoIP) systems. These systems allow users to connect with others, whether locally or internationally, using various features like call forwarding, voicemail, and conference calling. Modern phone systems often integrate with other technologies, such as computers and the internet, to enhance communication. For businesses, a phone system can be part of a larger Unified Communications strategy, which combines voice, video, and messaging services to improve collaboration and efficiency among employees.