telecom australia re-branded their system viatel, with the centre of operations in windsor, melbourne, australia. during the black monday stock market crash the system's stock trading system was highly used. the system in italy run by sip was heavily used during the 1990 fifa world cup for reporting the match progress and scores. the singapore system provided a much higher receive bandwidth than was available over dial-up modems at the time by broadcasting the return frames using the teletext technique of embedding them in broadcast television signals. four vhf tv channels were dedicated to this with all the scan lines used for teletext encoding, which enabled the system to provide a feature called "picture prestel" to convey higher resolution images. the yugoslav system was based in zagreb, with additional ircs located in rijeka, ljubljana, and split.