Just an FYI: From their Terms of Service:
Although Access-4-Free.com advertises "Unlimited Access" in regards to some of it's Dial-Up services, there are several limitations applied. The sole purpose of these limitations are intended to limit the amount of unnecessary use of Access-4-Free.com services by any such User, which restricts overall Access-4-Free.com system availability for other such Users. These limitations apply only to Dial-Up access services offered by Access-4-Free.com.
Idle Time-out
User agrees to have their online session automatically terminated after ten (10) minutes of consecutive inactivity. Inactivity is defined as less than 500 bytes of data transferred between User's modem and the Access-4-Free.com service.
Maximum Single Session
User agrees to have an online session automatically terminated after five (5) hours of consecutive time, regardless of data transferred during such specific online session.
Minimum Reconnect Limit
User understands they cannot log back onto the Access-4-Free.com system for a time period of one (1) minute following the termination of their previous online session, regardless of the reason for the previous session's termination.
Multiple, Concurrent Online Sessions
User agrees to maintain no more than one (1) concurrent online session for each PPP account purchased.