Links
Bus conversion trip ā accessing the internet on the road in 1997
geekanddad.wordpress.com
Iād look for at least 5 [pay phones] and 8 or 10 was a better bet. Iād take my laptop and a folding camp chair and start at one end and work my way down the bank of pay phones until I found one that could connect at 9600 baud or better (14.4 was rarely possible, and 28.8 was a challenge) and hold the connection long enough to upload/download etc.