Two friends and myself are starting up a monthly coffeehouse open mike series. We want to give out a phone number for people to call and get information, etc. but none of us really wants to have our phone numbers handed out all over the place, put up on billboards, etc. What we'd like to do is have some "central number" where we could leave a message, such as "Thank you for calling the ----- coffeehouse information line. Our next open mike session will be held...etc. etc." Of course we'd check the messages and respond as necessary.   We were thinking - just buy a cheap cell phone and let that serve as our voice mail.    Anybody have any better suggestions?