line noise are: "The system was very slow in responding tonight." "What I typed didn't show up on the screen until two words later." "I'm was only getting #### CPS, what's the matter with your system? "When I downloaded 156K of the 175K file you dropped carrier on me." These problems in data signal transmission and recognition can take many forms. The callers quoted above complained of slow system response, buffered Dallas 56k , Dallas, OR 56k DallasDallas , 56k Oregon, Dallas 56k
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