Paul, at 23:27 on Feb 09 1996, you wrote to Rod Speed...

RS> I've since called Bills non Austel Sportster V34 four times in a row and
RS> got absolutely perfect connects every time, not a hint of any retrain,
RS> or line errors or anything at all. Which now points the finger pretty
RS> unambiguously at the USR Courier V34+ as being where the wart lies.

PE> It's still not unambiguous, as it still could be your modem
PE> violating protocol.  However, the fact that the Sportster 
PE> does not exhibit the same problem on your Supra indicates 
PE> that there is a very good chance that the Courier has a
PE> switch which will disable the retrain request.  Now all you
PE> have to do is guess which one it is. 

Have a play with the following...

=====================================================================
S34          0          Bit-mapped register. 

                        Bit    Value   Result
                        0       1       Disable V.32 bis.  Used for 
                                        troubleshooting; U.S. Robotics' 
                                        Technical Support may require that 
                                        you disable V.32 bis for testing 
                                        purposes.  
                        1       2       Disable the modem's enhanced, 
                                        proprietary V.32 bis modulation.  
                                        Used for troubleshooting.
                        2       4       Disable the faster retrains that 
                                        occur during proprietary V.32 terbo 
                                        modulation.  Used for 
                                        troubleshooting.
                        3       8       Enable V.23.  Required for some 
                                        British connections.
                        4       16      Change MR LED to DSR.
                        5       32      Enable MI/MIC; see Appendix G.
                        6       64      Disable the remote access busy 
                                        message.
                        7       128     Disable V.32 terbo.
=======================================================================

I'd be trying either S34.1=1 or S34.2=1 myself.

Regards, Bill

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