David, at 16:11 on Feb 02 1996, you wrote to Bill Grimsley...

DD> Get fucked - Peter Nielson's modem only does 2400 anyway.  
DD> S'not my bloody fault . . . .

BG> No, it's mine.  I told him not to bother buying a faster 
BG> modem, as he'd still be in front with his 2400 screamer, 
BG> even with his daily polls to Paul.  :)

DD> Bastard! 

You called?

DD> We were trying to unload the 14,400 Sportster (Jill bought from 
DD> you) on him. 

Why?  Is something wrong with it then?  :)

DD> Jill now has a shiney 28,800 Sportster 

Do you want the V.34+ EPROM upgrade ordering details?  US$24.95, BTW.

DD> (of course being USR it's probably fucked and won't work at all)

Funny you should mention - I put the original V.FC-only EPROM back into the
Sportie this morning (basically just fucking around, plus I wanted to see
if any of the S registers has changed functions), and when I called you at
V.FC, the modems connected at 14400 V.32bis.  Weird (but I'm not too
worried).  :)

FWIW, the modem's on-line help screens give far more detail about the S
registers than does the actual manual (note the following)...

===================================================================
S0  Ring to Answer On                  S29 Reserved
S1  Counts # of Rings                  S30 Reserved
S2  Escape Code Char                   S31 Reserved
S3  Carriage Return Char               S33 Reserved
S4  Line Feed Char                     S34 Bit Mapped
S5  Backspace Char                           1 = Disable V32bis
S6  Wait Time/Dial Tone (sec)                2 = Disable Enhanced V32 mode
S7  Wait Time/Carrier (sec)                  4 = Disable Quick V32 retrain
S8  Comma Time (sec)                         8 = Enable V23 Fallback
S9  Carrier Detect Time (1/10sec)           16 = Reserved
S10 Carrier Loss Time (1/10sec)             64 = Reserved
S11 Dial Tone Spacing (msec)               128 = Reserved
S12 Escape Code Time (1/50sec)         S35 Reserved
S13 Bit Mapped                         S36 Reserved
      1 = Reset On DTR Loss            S37 Reserved
      2 = Reserved                     S38 Disconnect Wait Time (sec)
      4 = Reserved                     S39 Reserved
      8 = Do DS0 On DTR                S40 Reserved
     16 = Do DS0 On DTR Reset          S41 Reserved
     32 = Reserved                     S42 Reserved
     64 = Disable MNP Level 3          S43 Reserved
    128 = Reserved                     S44 Reserved
S14 Bit Mapped                         S51 Bit Mapped
      1 = Escape Code Hang Up                1 = MNP/V.42 Disabled in V.22
S15 Bit Mapped                               2 = MNP/V.42 Disabled in V.22bis
      1 = Reserved                           4 = MNP/V.42 Disabled in V.32
      2 = Reserved                           8 = Reserved
      4 = Reserved                          16 = Reserved
      8 = Reserved                          32 = Reserved
     16 = Disable MNP Level 4               64 = Reserved
     32 = Reserved                         128 = Reserved
     64 = Reserved                     S54 Bit Mapped
    128 = Reserved                           1 = Disable 2400 symbol rate
S16 Test Modes                               2 = Disable 2743 symbol rate
      1 = Reserved                           4 = Disable 2800 symbol rate
      2 = Dial Test                          8 = Disable 3000 symbol rate
      4 = Reserved                          16 = Disable 3200 symbol rate
      8 = Reserved                          32 = Disable 3429 symbol rate
     16 = Reserved                          64 = Disable Call Indicate
     32 = Reserved                         128 = Disable V.8
     64 = Reserved                     S55 Bit Mapped
    128 = Reserved                           1 = Disable 8S-2D map
S17 Reserved                                 2 = Disable 16S-4D map
S18 &Tn Test Timeout (sec)                   4 = Disable 32S-2D map
S19 Inactivity Timeout (min)                 8 = Disable 64S-4D map
S20 Reserved                                16 = Reserved
S21 Break Length (1/100sec)                 32 = Reserved
S22 Xon Char                                64 = Reserved
S23 Xoff Char                              128 = Reserved
S24 Reserved                           S56 Bit Mapped
S25 DTR Recognition Time (1/100sec)          1 = Disable Non linear coding
S26 Reserved                                 2 = Disable TX level deviation
S27 Bit Mapped                               4 = Disable Pre-emphasis
      1 = V21 Mode                           8 = Disable Pre-coding
      2 = Disable TCM                       16 = Disable Shaping
      4 = Disable V32                       32 = Reserved
      8 = Disable 2100hz                    64 = Disable V.34
     16 = Disable MNP Handshake            128 = Disable V.FC
     32 = Disable V.42                 S57 Reserved
     48 = Disable V.42 Detect Phase
     64 = Reserved
    128 = Unusual SW-Incompatibility
S28 V32 Handshake Time (1/10sec)
==========================================================================

For Paul's benefit (assuming that he's capable of understanding words in
excess of one syllable) S54=64 is the important one, and disables the V.25
Call Indicate tones which tend to confuse some older, brain-dead fax
modems.

Regards, Bill

--- Msgedsq/2 3.20