Large companies and corporations have long appreciated the benefits of a customer-centric approach to business. However, it was only with the advent of information technology that the CRM ideology became available to a wide range of companies, including small and medium-sized enterprises. For companies where customers like at brother phone number account for hundreds and thousands, the use of applied information CRM systems is especially important. Information technology in relation to the CRM ideology is a whole class of IT products known under the term “CRM system”. Earlier, IT companies made attempts to bring CRM systems to the market.