Businesses that need a dependable internal and external communication network must have Private Branch Exchange (PBX) systems. In addition to providing access to external communication channels like VoIP or PSTN, a PBX System links telephones within an enterprise. selecting a right PBX system is essential. Traditional, IP, and hosted PBX systems are the three main categories of PBX Systems. Each type will be covered in this tutorial along with its advantages and how to pick the ideal one for your company.