Objectives: To assess how senior citizens followed Telephone CPR (T-CPR) instructions in a simulated cardiac arrest scenario. Methods: Twenty-two voluntary senior citizens were studied in a simulated cardiac arrest scenario following the instructions given to them by an Emergency Medical Dispatcher. The phone calls and the CPR performance were recorded and analyzed. Results: The rescuers reported that they had performed better than the analysis of video and phone call recordings showed. When asked after the scenario the rescuers felt that they had coped with the situation well 72% and quite well 28% of the cases. Every participant evaluated the given telephone CPR instructions as very easy to understand. 35% of the participants thought that performing CPR was physically quite easy. The unexpected result was the EMDs’ bad protocol compliance. Protocol was not strictly followed by the dispatchers. They gave more straight forward instructions without the full knowledge of the situation, than they should have. From the 12 analyzed instructions that the dispatchers should have given to the rescuer, only three instructions (give two deep rescue breaths, correct positioning of the rescuers arms and to compress 15 times) were totally as in the protocol. Conclusions: The quality of CPR given by the senior citizens was inadequate in this study. The EMDs had bad protocol compliance. Standardized and feasible T-CPR instructions by the dispatcher are not seen in this study, even if the rescuers stated that the instructions were clear and easy to understand.