This training course in CRM as a Telemarketing Tool approaches Customer Relationship Management (CRM) as a essential tool in telemarketing. Beginning with an introduction to the concept and development of CRM, the course explores customer relationships in greater depth, customer loyalty strategies and the use of CRM in the digital environment (eCRM). It explores how to implement an eCRM solution within the company and the customisation tools and their relationship with ERP systems are analysed. Furthermore, potential applications of CRM in different business areas are examined.