http://librarian.i2p/get/6789209034698203843/15859919984428708546
Instead of old-fashioned telephones, we used Reuters Dealing 2000-2 to communicate and trade with other banks. It was high-tech at the time, a kind of two-person electronic chatroom that predated the internet. Each trading desk at each bank had a four-letter identifying code, and you simply needed to type the code and hit the send button on the custom-made keyboard and then a beeping sound would signal an incoming call at the other end.