No, it doesn't. Which ACC of FIS responsible for your current FIR to call may depend not only on your position, but also on your intentions. You may even find yourself in a certain FIR, but radio services for your flight execution is 'delegated' to an ACC of a FIS not even in your country, if close borders. When under FIS supervision you change when and to as advised from them anyways. If you just listen, you have to pull the FIS options from your thorough flight preparation, which may even include listening to several FIS in parallel, especially in Italy.