I had to swap out our DSL modem here, but while the Internet browsable from within the office, our static IP addresses were not accessible from the outside. I'm going to post the settings here so I'll be able to access them anywhere and I won't forget.

Select Advanced Setup
WAN IP Address
1: PPPoA
2: Whatever the Login name is and password
3: Check the PPP Auto Connect Box
Select Block of Static IP Addresses(Unnumbered Mode)
Gateway Address(Unnumbered Mode) = 75.160.107.158
Subnet Mask(Unnumbered Mode) = 255.255.255.248
4. Select the DNS type. I have VIP Mode unchecked
5. Select ATM Encapsulation type. Dynamic DNS Addresses(Default) is checked
VC-Mux(Default) is also checked