I just found another modem that will do BTLZ data compression over MNP 4 to
a Netcomm M34F:


at*st0
STATUS:            Codex 3265  
CONNECT MODE       RELIABLE
DTE RATE           38400
DCE RX RATE        V.34 28800
DCE TX RATE        V.34 28800
EC MODE:      EC = (MNP4) 
              DC = (V42bis)
  
...  
DEVICE SERIAL      009641141

Hit any key to continue  ( Q to QUIT )

SOFTWARE PART #    71894071
MCC CODE           21876
COUNTRY CODE       61
PRODUCT CODE       40375
  
PHASE JITTER           0 deg
FREQUENCY OFFSET       0 Hz
TRANSMIT LEVEL       -12 dBm
RECEIVE LEVEL        -28 dBm
RETRAIN COUNT          3
ECHO DELAY             2 ms
FAR  ECHO LEVEL      -61 dBm
NEAR ECHO LEVEL      -31 dBm
PHASE ROLL            .0 Hz
SIGNAL/NOISE RATIO    36 dB
SIGNAL QUALITY         8
ERROR PROBABILITY      0 %
  
DISCONNECT REASON  OPTION SET SELECTED - ATZ

Hit any key to continue  ( Q to QUIT )


OK
ato
CONNECT 28800 RELIABLE  EC=(MNP4) DC=(V42bis)

For some reason I get lower S/N figures connecting to the Netcomm M34F's
than the Motorola or Hayes Optima 288 modems...

--- msgedsq 2.1