Yo Patrick!
At the time that I'm writing this, I'm uploading a 777316 bytes file to a USR 
Courier VEverything with a R33/T31 connect (the receive rate shifted from 31 
to 33 after a while!). After having downloaded a 1.9M file at 3700 cps, I 
wanted to upload the aforementioned file from 777Kb (in the mean time that's 
completed and I'm logged off).
Everything seemed to be OK during the upload, but when the file was sent 
completely, I got the message "Correcting Transmission Error (1)" until (8). 
Then the upload resumed from 218Kb. When it was done again, I got 4 more of 
these messgaes, after which the transfer resumed from 498Kb. After this 
transfer, again I got this messgage twice more and it resumed from 600Kb. 
this time, the transfer was successful.
How come the modem didn't react immediately when an error was reported? I 
used Zmodem (the built-in version of the OS/2 version of ZOC), with which 
I've never had any problems before (with 28k connects). I "know" some errors 
were reported by the remote modem during the (re)sends, because at a certain 
moment, the RD led would flash (this used to be the indication the a bad 
packet was received by the remote when I still used my Supra 14.4).
Is this an error in the transfer protocol (Zmodem) or in the rom? Anyway, 
these are the AT%q1 and AT%q2 reports after the call (I have an external SFM 
28.8 (well, 33.6 :) using flashrom beta-23):
---
TX data rate         = 31200  min = 31200  max = 31200
RX data rate         = 33600  min = 31200  max = 33600
Far echo delay       = 1ms
Far echo level       = -50dBm
Pre-emphasis filter  = 8
Pre-Coding           = TX 1 RX 1
Shaping              = TX 0 RX 1
Non-linear encoding  = TX 1 RX 1
Trellis mapping      = 64-4D
SNR                  = 49dB
Normalized band width= 150Hz-3825Hz
Symbol rate          = 3429
> Why is the TX shaping set to 0? Could that have anything to do with it?
Termination reason   = Link disconnect
Transmitted bytes    =    1985723
Received bytes       =    2275186
Transmitted I frames =      15626     Octets               =    1980825
Received I frames    =      30724     Octets               =    2101905
Bad frames received  =        171     T401 resent I frames =          0
SREJs received       =          0     Resent I frames      =          0
REJs received        =          0     Resent I frames      =          0
SREJs transmitted    =         57
REJs transmitted     =          0
SREJ                 =    enabled
Transmit window size =         15
Receive window size  =         15
Transmit frame size  =        128
Receive frame size   =        128
BTLZ dictionary size =       2048
BTLZ string length   =         32
Transmit compression =    enabled
Receive compression  =    enabled 
AT\s1:
REG  DEC  HEX     REG  DEC  HEX     REG  DEC  HEX     REG  DEC  HEX
---  ---  ---     ---  ---  ---     ---  ---  ---     ---  ---  ---
S00  000  00H     S15  000  00H     S30  000  00H     S92  010  0AH
S01  000  00H     S16  000  00H     S31  198  C6H     S95  047  2FH
S02  043  2BH     S17  000  00H     S32  017  11H     S109 062  3EH
S03  013  0DH     S18  000  00H     S33  019  13H     S110 014  0EH
S04  010  0AH     S19  000  00H     S36  007  07H     S190 020  14H
S05  008  08H     S20  000  00H     S37  000  00H     S191 128  80H
S06  002  02H     S21  052  34H     S38  005  05H     S192 046  2EH
S07  050  32H     S22  112  70H     S39  003  03H     S193 001  01H
S08  002  02H     S23  190  BEH     S40  104  68H     S194 000  00H
S09  020  14H     S24  000  00H     S41  135  87H     S197 003  03H
S10  100  64H     S25  005  05H     S46  138  8AH     S200 004  04H
S11  055  37H     S26  001  01H     S48  007  07H     S201 050  32H
S12  050  32H     S27  009  09H     S82  128  80H     S202 000  00H
S13  000  00H     S28  000  00H     S86  012  0CH     S210 013  0DH
S14  138  8AH     S29  070  46H     S91  010  0AH
Cya,
           Gamefreak 
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