I can get you setup on a NationalNet server using 100% teir1 networks, with 24x7 phone and web support plus full management and active monitoring for $199/mo - this includes 5Mbps bandwidth. For your calculations, 30 consistently simultaneous users @ 96kbps = 2880kbps or 2.8Mbps, add overhead and you will still be well within this 5Mbps range.
Please contact me on
[email protected] or
[email protected] with your full details so that I can get you details of this offer.
cheers,
Luke