This article presents a comparative analysis of two approaches for the telephone contacts management in a medical organization. The «traditional» model of the phone calls management in a medical institution and a model with the use of «call center» are considered. The advantages and disadvantages of these models are described. Specificity of the phone calls in a medical organization is disclosed. The «call center» activities analysis is carried out using the example of Interregional Clinical Diagnostic Center (ICDC), Kazan. The conclusion about the necessity of development of an information flow management system in a medical organization is drawn.