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Congratulations Mike Lewis on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!
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able to detect line in use without resorting to dialtone detection?
need to know whether it's possible for an external serial hardware modem to detect whether a line is in use via extension phone without the modem actually going on-hook and detecting dial tone? Purpose is to use the modem as a call recorder. My plan is upon ring detection check whether it's...
