[centurion316]

Telex and later TWX were telephone based messaging systems that would transmit messages over phone lines. They had a limited character set, so lowercase characters were not implemented. The military and international messaging used the same technology. The printers received the message via phone lines and typed the message without operator input. Telex and TWX systems are still in use.

[PA Engineer]

Telex and later TWX were telephone based messaging systems that would transmit messages over phone lines. They had a limited character set, so lowercase characters were not implemented. The military and international messaging used the same technology. The printers received the message via phone lines and typed the message without operator input. Telex and TWX systems are still in use.

I'm going to date myself. I remember when that is all we had for communications from third world countries back to the states. We would have to go to the local phone office and pay a special fee (bribe) to get in the message queue.