Knowing google. There will likely be a free tier and then higher tiers that handle multiple phone lines, complex call routing and eventually customer service case handling.
Just go with an RSP that is honest and provides decent bandwidth. Aussie Broadband are great and won't even let you sign up if they don't believe they have enough capacity in your area.
These tend to be imitations of an existing style at best with a sprinkling of randomness thrown in, and nonsensical at worst. Certainly nothing fascinating enough to have people queuing to experience it paid ticket in hand. Still, artistic creativity seems like a pretty lofty goal at this point so it wouldn't be the first place I would expect to see genuine creativity emerge.
