Generic, for most modems                     AT&F&C1&D2
Generic, for most modems                     AT&F&D0S0=0
Generic, for most modems                     ATX4V1Q0S7=70
Generic, AT&T v.34 Chipset                   AT&F0&D0S0=0
Generic, AT&T v.32/v.32bis Chipset           AT&F0&D0\G0\N7\Q3\J0%C1S0=0
Generic, Rockwell Chipset                    AT&F&D0&K3&Q5S0=0
Generic, Rockwell RPI Chipset                AT&F&D0&K3+H3S95=1S0=0
Generic, Rockwell RPI Chipset                AT&F&C1&D2&K3+H11 S95=1
Generic, Rockwell RPI Chipset                AT&F&C1&D2+H11S95=1
Generic, Rockwell RPI Chipset                AT&F&C1&D2&K3+H11S95=1
Generic, Rockwell RPI Chipset                AT&F&C1&D2&K3+H11Y0S95=1
Generic, Rockwell RPI Chipset                AT&F&C1&D2&K3E1V1+H11Y0S95=1
Generic, Rockwell RPI Chipset                AT&F&C1&D2&K3&Q5E1V1Q0X4+H11S95=1
Generic, Rockwell RPI Chipset                AT&F&C1&D0&K3&Q5E1V1Q0+H11Y0S7=75S95=1
Generic, Rockwell RPI+ Chipset               AT&F&D0&K3+H11S0=0
Generic,                                     AT&D2&C1X4V1Q0S7=70
Generic, Sierra Chipset                      AT&F&D0\G0\N3\Q3\J0%C1S0=0
Generic, 9600                                AT&F&C1&D2&K3%C0
Generic, 14.4 RPI                            AT&F&C1&D2&K3+H3S95=1
Generic, 14.4                                AT&F&C1&D2&K3
Generic, 14.4                                AT&F&C1&D2&K3%C0
Generic, 14.4                                AT&F&C1&D2&K3%C1
Generic, 14.4                                AT&F&C1&D2S7=60
Generic, 14.4                                AT&F&C1&D2&K3%C0 
Generic, 14.4                                AT&F&C1&D2
Generic, 19.2                                AT&F&C1&D2S7=60
Generic, 28.8 / 33.6                         AT&F&C1&D2
Generic, 28.8 / 33.6                         AT&F&C1&D2&K3
Generic, 28.8 / 33.6                         AT&F&C1&D2S7=60
Generic, 28.8 / 33.6                         AT&F&C1&D2&K3%C0
Generic, 28.8 / 33.6                         AT&F&C1&D2&K3%C1
Generic, 28.8 / 33.6                         AT&F&C1&D2&K3%C1\N3
Generic, 28.8 / 33.6                         AT&D2&C1X4V1Q0S7=70&Q5&K3
Generic, 56K                                 AT&FMS=56
Generic, 56K                                 AT&F1MS=56
Generic, 56K                                 AT&FMS=56S202=32   
Generic, 56K                                 AT&F1MS=56S202=32
Generic, X2                                  AT&F&C1&D2S15=128S32=98
Generic, X2/V.90 Limited to 33.6 (V.34)               S32=64
Generic, X2 Limited to 33.6 (V.34)                    S32=32
Generic, X2/V.90 Winmodem Disable X2, Enable V.90     S32=34
Generic, X2/V.90 Winmodem Disable V.90, Enable X2     S32=66
Generic, Lucent Chipset K56Flex only (V.90 off)       S109=0  
Generic, Lucent Chipset K56flex or V.90               S109=1
Generic, Lucent Chipset V.90 only (K56Flex off)       S109=2
Generic, K56Flex                                      +ms=56,1
Generic, K56Flex                                      +ms=56,1,19200,56000,1,0
Generic, K56Flex (DOS, Win3.1, MAC)             AT&F&C1&D0&C0+ms=56,1,19200,56000,1,0
Generic, K56Flex 56K Limited to 33.6                  +ms=11,0,9600,33600
Generic, K56Flex/V.90  56K Limited to 33.6            +ms=11,1
Generic, Rockwell Based V.90                          AT&F&W&W1E0X4W2  
Generic, Rockwell Based V.90                          +MS=12,1
Generic, Rockwell Based V.90 (flex and V.34 disabled) +MS=12,1,34667,56000
Generic, Rockwell based K56flex only                  +MS=56,1
Generic, Rockwell based K56flex only                  +MS=56,1,34000,56000 
Generic, Rockwell Based HCF Chipset       AT&F&C1&D2x4W1S7=60S11=60&QS546=2&K3S36=7
Generic, Rockwell Based HCF V.90                      +ms=v90
Generic, Rockwell Based HCF K56flex                   +ms=k56flex
Generic, Rockwell Based HCF 33.6 mode (V.34)          +ms=v34
Generic, Rockwell Based HCF V.90 (to disable V.90)    +ms=v34,0,19200,33600
Generic, Rockwell Based HCF V.90                      AT&FE0V1S0=0&C1&D2W0
Generic, Rockwell Based HCF V.90                      AT&F&C1&D2+MS=v90,0
Generic, V.92 (disable V.92, enable V.90)             +MS=v90,0
Generic, V.92 (disable V.92, enable V.34)             +MS=v34,0
Generic, V.92 (Disable PCM upstream)                  +PIG=0             
Generic, V.92 (disable Modem on Hold feature)         +PMH=1                  
 
 
  
To keep the modem from answering the phone
Add S0=0 to your init string. 
 
  
Speaker Control Init Strings
  
M0  Speaker always off 
M1  Speaker on during connection 
M2  Speaker always on (very noisy) 
L0  Lowest volume 
L1  Lowest volume (redundant) 
L2  Medium volume 
L3  Maximum volume 
 
 
Making the Modem report the true connect speed
 
For Rockwell-based 28.8 and K56flex units, the command to show your true connect speed is W2. (For Rockwell-based PCI 
modems, the command is MR=2.) 
The S95 commands and the &Q commands can override W2, so add S95=0 or S95=1.
 
 
  
K56Flex - Is the Rockwell Based 56k 
              Standard. X2 - Is the US Robotics Based 56k 
              Standard. V.90 - Is the ITU recognized 56k Standard 
              (sort of a combination of X2 and K56Flex).
 
  
 
 
 
 
               
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