teletypewriter exchange การใช้

• AT & T published the trade magazine TWX, related to the Teletypewriter Exchange Service from 1944 to 1952.
• "TWX " magazine took its name from the Teletypewriter Exchange Service, which was developed by AT & T Corp . in 1931.
• Western Union offered connections from Telex to the AT & T Teletypewriter eXchange ( TWX ) system in May 1966 via its New York Information Services Computer Center.
• Long Lines briefly published a periodical, " TWX ", targeted to companies that used AT & T's equipment and services, particularly TeletypeWriter eXchange, from which it took its name.
• Most area codes of the form N10, originally reserved for AT & T's Teletypewriter eXchange ( TWX ) service, were transferred to Western Union in 1969 and were freed up for other use in 1981 after conversion to + 1-610-, was assigned to Canada and liberated in 1992.
• No codes of the form " N00 ", " N10 " or " N11 " occurred in the original area code allocation, where N is 2 through 9 . The series " N00 " was used for non-geographic numbers, starting with intrastate toll-free 800-numbers in 1966 . " N10 " numbers were originally teletypewriter exchanges and " N11 " remains reserved for information and emergency numbers.