Sponsored by the Alliance for Telecommunications Industry Solutions and accredited by ANSI for interoperability standards.

DCB's T1 repeater for customer-owned cable.

All you wanted to know about T1's but were afraid to ask.

Provides an open industry forum for the discussion and resolution of multiple technology integration and SONET interoperability issues.

Defines SONET and SDH, and provides references to appropriate standards organizations.

Offering T-1/T-3 information, glossary, FAQs, reference, Technical reports, news, messageboard, ISP lists and links.

Webopedia definition and links about T1.