Committee T1
Sponsored by the Alliance for Telecommunications Industry Solutions and accredited by ANSI for interoperability standards.
DCB's T1 Info
All you wanted to know about T1's but were afraid to ask.
EverythingT1.com
Offering T-1/T-3 information, glossary, FAQs, reference, Technical reports, news, messageboard, ISP lists and links.
Network and Services Integration Forum
Provides an open industry forum for the discussion and resolution of multiple technology integration and SONET interoperability issues.
SONET/SDH Technical Summary
Defines SONET and SDH, and provides references to appropriate standards organizations.