Telex is still in operation but not in the sense described in the CCITT Blue Book documentation. ... Telex has been mostly superseded by fax, email, and SWIFT, although radiotelex (telex via HF radio) is still used in the maritime industry and is a required element of the Global Maritime Distress and Safety System.

Are telex machines still used?

YOU might imagine the words 'telex' and 'telegram' had been consigned to business history. But for one Dorset company, they are very much still in common currency. ... The telex – short for 'teleprinter exchange' – was developed during the Second World War as a secure way of sending messages over long distances.

When was telex discontinued?

Beginning in the 1980s, the ability to conduct high-speed digital communication—particularly fax transmission—over nonleased dial-up telephone lines led to a decline in the use of telex. Western Union sold its Telex network to AT&T in 1990, before declaring bankruptcy in 1993.