I'm sure you can still get it to work, but for your information... As of right now, only the following providers are officially supported by Toshiba:

AT&T®
CBeyond®
Paetec®
Telepacific®
XO Communications®
American Broadband Services (ABS)®
ACD Telecom
Airspring®
Broadvox®
Clearfly®
Everest Broadband
Integra Telecom
lPowernet Global®
Line Systems
MM Internet
Broadcore®
Twist Networks®
New Global Telecom
Nextera
Nextlevel
NTelos® POPPcom®
Select Connect
Smart Choice
Sotel
Vinculum
Xchange Telecom®

- Tony
Ohio Data LLC
Phone systems, data networks, firewalls and servers in Central Ohio.
Some people aren't used to an environment where excellence is expected.