I haven't dealt much with modems but have done a fair amount of serial interfaces. It might be that you need to utilize some of the control lines like RTS/DTS.
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I haven't dealt much with modems but have done a fair amount of serial interfaces. It might be that you need to utilize some of the control lines like RTS/DTS.
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Check this page for the concept.
http://www.easyvitools.com/articles/...onedialer.html
I believe you can get the idea from there.
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"If the Earth were a single state, Istanbul would be its capital." Napoleon Bonaparte
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checked the modem ctrl line, nothing wrong with the signal.
can it be the modem need special code other than AT command ?
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