Archived from groups: alt.cellular.gsm (More info?)
To establish data call on MDA III device there is the following
procedure:
1. Open TAPI
2. Establish call to specified device by TAPI methods. It should be
DATAMODEM mode.
3. Open serial port COM9:
4. Communicate with called device through this serial port
5. Hang up by TAPI methods
That's all. Notice, that COM9: doesn't have any response before you
establish connection to device by TAPI methods.
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