I agree about cell phone 10 miles offshore but in our area the CG station that answers our calls is in Tampa. I feel like a faster response will be obtained from my local services when I can contact them. Since the majority of us are coastal sailors or sail in local protected waters a cell phone for me would be a first choice. Obviously if you are out of range, cell will not work and just as obviously you will have or should have, the appropriate technology for the situation.