On Apr 23, 2006, at 6:37 PM, Kevin Windham wrote:


On Apr 23, 2006, at 6:59 PM, Thomas Cunningham wrote:

PS: why DataAvailable is fired so many times after a single call ?

This appears to be the behavior of the modem. I've been following this thread and wrote a little demo that dials up my ISP. The modem sends back
the instruction sent and a response. Mine looks like this:

I believe, IIRC from my modem days, that there is a command you can send to the modem to turn that behavior off. I think it's called local echo.

There is exactly such a feature and it can be enabled and disabled with the "standard" Hayes AT command

        ATE0  -  Echo Disabled

        ATE1  -  Echo Enabled

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