https://td-2.org/ 2026-04-29T12:07:20+00:00 https://td-2.org/ https://td-2.org/_media/wiki/logo.png text/html 2026-04-05T17:52:20+00:00 Anonymous (anonymous@undisclosed.example.com) https://td-2.org/about?rev=1775411540 About TD-2 TD-2.org is a wiki on telecommunications infrastructure and history, maintained by J. B. Crawford. The goal is to build a website along the lines of Albert La France's invaluable resource, but with multiple contributors and a plan for sustainability into the future. I am also aiming for a more convenient navigation experience, by using geotags and interlinking. text/html 2026-04-14T16:47:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://td-2.org/autovon?rev=1776185246 AUTOVON AUTOVON, the Automatic Voice Network, was a military telephone network operated by AT&T. There's a lot more writing to do about it! Resources The Autovon Routing Guide or “Orange Book” (available from TCI Library) is a valuable resource. Besides an in-depth explanation of the unique text/html 2026-03-17T17:06:33+00:00 Anonymous (anonymous@undisclosed.example.com) https://td-2.org/collections?rev=1773767193 Collections This is a bit of a junk drawer for collections of telecom-history related material that are not easily available elsewhere on the internet. The Exchange Names Project (TENP) The Exchange Names Project was a Yahoo group collecting directory pages and other evidence of historic telephone exchange names. The group didn't survive Yahoo Groups turmoil, but I came into possession of the at least some of the files they had collected: text/html 2026-04-05T17:40:17+00:00 Anonymous (anonymous@undisclosed.example.com) https://td-2.org/emergency_alerts?rev=1775410817 Emergency Alerting Systems Timeline * 1951 - CONELRAD * 1963 - CONELRAD replaced by Emergency Broadcast System (EBS) * 1971 - Erroneous “Attack Warning” sent to EBS by NORAD, EBS policy changed to alerts authorized by the president only * 1976 - Emergency Broadcast System automation improved with the two-tone warning signal, state and local authorities, FEMA, and NWS added to system text/html 2026-04-13T19:54:47+00:00 Anonymous (anonymous@undisclosed.example.com) https://td-2.org/sidebar?rev=1776110087 * Facilities * Long-Distance Carriers * Long-Distance Routes * Collections * Maps * Emergency Alerting Systems * Military Communications Systems * About TD-2 text/html 2026-04-14T23:46:53+00:00 Anonymous (anonymous@undisclosed.example.com) https://td-2.org/start?rev=1776210413 Welcome to TD-2.org, an open resource for telecommunications history. This is very much a work in progress, but my eventual hope is to welcome additional contributors and build a useful, comprehensive, and maintainable encyclopedia on the history of telecommunications in North America. See