After upgrading – do I need to create the whole configuration again or does it know to read to running configuration file?Do I need to hard reset the pix after the upgrade?

Hi, When traveling with Laptop to a hotel around america, most rooms has DSL ports for internaet browsing. Why can't I use this connection to connect to my officr PIX with a VPN dailer?When dialing by phone it's working, and by using cables at home i...