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Example
Lets take the external modem US Robotics with chipset Sporster as an example.
If you constantly get disconnected from the Internet, or if during the dialing
process(handshaking), finding the corresponding extra settings will reduce the connecting
speed thereby stabilising your connection. To reduce the speed, we can adopt V34
protocol, thereupon the respective setting will be ats32=66.
* NOTE 1: If you do not have the extra settings, the Pre-Terminal window can be used
to identify the correct setting. If no characters appear type ate1 and Enter.
*NOTE 2: If you cannot connect with
the extra settings, you should reduce the port's maximum speed to 57600 or 38400.
Chart Of Commands For Disabling Protocols
| Chipset |
Disable x2 |
Disable v.42 |
Disable v.90 |
Disable v.90 & x2 |
| Sportser/USR |
ats32=34 |
ats15=128 |
ats32=66 |
ats32=98 |
| Courier |
ats58=1 |
ats27=32 |
ats58=32 |
ats58=33 |
| Cirrus MD56xx |
at+ms=v90,0 |
at+es=4,4,6%c1 |
at+ms=x2,0 |
at+ms=v34,1,0,33600 |
| ESS/Teledrive |
at+ms=17,0 |
at\n5 |
at+ms=12,0 |
at+ms=11,0 |
| Broadcom BCM |
ats51=95 |
at\n5 |
ats51=63 |
ats51=31 |
| |
Disable KFlex |
Disable v90 |
Disable V90 & Flex |
Disable v.42 |
| Rockwell Dual |
at+ms=12 |
at+ms=56 |
at+ms=11 |
&q6 |
| Rockwell HCF&Soft56 |
at+ms=v90,0 |
at+ms=k56,0 |
at+ms=v34 |
at+es=1,0,1; |
| Lucent LT |
ats38=0 |
at-v90=0 |
ats38=0-v90=0 |
at\n2 |
| Lucent Venus |
ats109=2 |
ats109=0 |
ats38=0 |
at\n2 |
| PCTel HSP |
atn0s37=14 |
atn0s37=13 |
atn0s37=12 |
at\n5 |
| Motorola SM56 |
at*mm15 or at+ms=v90,0 |
at*mm13 or at+ms=k56,0 |
at*mm12 or at+ms=v34 |
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| VIA |
at*mm15 or at+ms=v90,0 |
at*mm13 or at+ms=k56,0 |
at*mm12 or at+ms=v34 |
at+es=4,0,1 |
| ST Micro / SGS |
at+ms=90 |
at+ms=56 |
at+ms=34 |
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