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i Send AT commands from 8051 to a TMAS GSM modem , then i link up the Tx line to hyper termnial

i Send AT commands from 8051 to a TMAS GSM modem , then i link up the Tx line to hyper termnial however the respond from the modem is the AT command i key in.

anyone can teach me on how to slove this?

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0 ImPer Westermark over 16 years ago in reply to coldsea coldsea

What does the AT command reference tell you?

Your question sound similar to: Is there a function that allows me to see the contents of a file, without first having to do a directory lookup to figure out if the file exists, and what its name is.
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0 ImPer Westermark over 16 years ago in reply to coldsea coldsea

What does the AT command reference tell you?

Your question sound similar to: Is there a function that allows me to see the contents of a file, without first having to do a directory lookup to figure out if the file exists, and what its name is.
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