Comarch Teleholter is a system for heart rate diagnostics, connecting an advanced application for ECG signal analysis with telemedicine. It offers a Holter test (with seven or 12 leads), available at any time and in any place, for analysis and checking test status or printing a report. The solution contributes to administrative cost reduction and limits requirements for specialist staff and infrastructure, while shortening the time for test analysis to the minimum. Comarch Teleholter is offered as a service with no initial costs to the client. There is no need to purchase software or hardware, or for time-consuming system implementation. The client is not liable for medical data storage as all key data with complete test records is stored on secure Comarch Healthcare servers.