The development of e-health services in rural environments, where broadband accesses are usually not available, requires a specific analysis of available resources to improve the management of quality of service (QoS). This work studies the sharing of resources among several users and the system efficiency in rural areas, guaranteeing QoS. The results obtained show that, with the premises considered in this study, a rural centre can establish a maximum number of simultaneous real-time services with the hospital, which varies between 2 and 3 for each 64 kb/s of available link capacity