That hasn't been my experience. I always get the salary range, equity package, and what stage/growth the company is at currently and where they want to take things. All in the first 30 minute call.
I've tried a fair number of those calls. You might be surprised by how many recruiters don't really have salary range or meaningful equity details (preferences, shares outstanding, etc.) but really want me to be excited for the great opportunity to get in on the ground floor of a rapidly growing business.
To my eyes, thirty minutes is a pretty expensive way to find out if a position is in line with my comp and the company one I want to work for. It could just as easily be handled in thirty seconds.
Last month I had a quick 20-minute call with a recruiter who couldn't tell me anything about the company or the position that I hadn't found in thirty seconds of searching. This is not an unusual experience, unfortunately. The only explanation for that call I can find is that the recruiter sincerely expected to impress me with a phone sales approach.