or software. Yes, periodically a modem will not answer due to a problem, but most modem problems are on the calling end. A common misconception among computer users is that the telephone company and long-distance switching network is a "perfect system." The advent of error-correcting, high-speed modems which mask line-noise and push the data transfer tolerance window to the limit, has given us a false sense of belief that everything should dial up connection, , TX up connection dial up connection, dial Texas, dial up connection
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