For a limited time STI will upgrade your $29.95 384K DSL account to 512K for no additional charge! All you need to do is switch to credit card billing through STI, and we will upgrade your account for free. This special applies to 384K DSL customers only. 384K DSL customers who are already paying by credit card qualify for the special as well. All you need to do is call us at (559) 641-9000 or (209) 966-9888 during our normal office hours (8am to 8pm, Mon-Fri) and ask for the upgrade. Be sure to have your account and credit card information ready.