Telemarketing (sometimes known as inside sales, or telesales in the UK and Ireland) is a method of direct marketing in which a salesperson solicits prospective customers to buy products or services, either over the phone or through a subsequent face to face or Web conferencing appointment

Customer service is the provision of service to customers before, during and after a purchase. wikipedia.org

An applicant tracking system (ATS) is a software application that enables the electronic handling of recruitment needs. An ATS can be implemented on an enterprise or small business level, depending on the needs of the company. wikipedia.org

Microsoft Office is an office suite of desktop applications, servers and services for the Microsoft Windows and OS X operating systems. wikipedia.org

A subset of the field of commerce, business development comprises a number of techniques and responsibilities which aim at: wikipedia.org

Key account management includes sales but also includes planning and managing the full relationship between a business and its most important customers. wikipedia.org

Cold calling is the marketing process of approaching prospective customers or clients, typically via telephone, who were not expecting such an interaction. wikipedia.org