Integrity, Diversity and Expertise for the Financial Community. American Telesis provides Ringdowns, Hoot'n'Hollers, T-1s and T-3s on our own nationwide facilities-based network designed with both geographic and electronic diversity. Expect turn-ups within 24 hours on-net and 15 days off-net. Solid growth and continued profitability since 1992 have been achieved by delivering circuits on-time and exceeding customer expectations, with no long-term minimum-volume contracts. End-to-end provisioning, seamless circuit migrations, proactive 24x7 support, no auto-attendants and customized invoicing.