The biggest sign is when the college coach contacts your club coach and says they are interested. If they are really interested they will ask your coach to pass on that message and encourage you to call them.
My understanding is that you can still call them, but they cannot answer the phone until June of sophomore year. I believe they can also call you directly at that time. Until June of Soph year-- they can talk to you at camps, but I don't think it can be a recruiting conversation.Can they even do that anymore until June of sophomore year? In the OP’s case, sounds like the college coach would have to send that msg in a month or so?
My understanding is that you can still call them, but they cannot answer the phone until June of sophomore year. I believe they can also call you directly at that time. Until June of Soph year-- they can talk to you at camps, but I don't think it can be a recruiting conversation.
They can let your coach know they are interested in you. Can they still email a personalized camp invite?