Controlling Link Speeds With &Nand &U; Controlling Link Speeds; Limiting The Highest Possible Connect Speed - US Robotics Sportster Flash x2 User Manual

Controlling Link Speeds with &N
and &U
You can use the &N and &U commands to control link speeds.
Sportster modems without x2 can still use the &N and &U commands,
but can only control link speeds up to 33.6kbps.

Controlling Link Speeds

You can use the &N and &U commands to control the link speeds of
your Sportster with x2. Use the following table to determine how to use
&N and &U commands:
To limit the
Highest possible connect speed
Lowest possible connect speed
Range of possible connect speeds
Note: The default values for &N and &U are 0. If you change these
values, you will limit the speeds at which you can connect. 3Com
recommends that you do not alter these values.

Limiting the Highest Possible Connect Speed

The &N command allows you to limit the highest possible connect
speed. If a remote modem attempts to connect to your Sportster with x2
at a speed higher than &N, your Courier with x2 will not allow it to
connect.
To limit the
Highest possible
connect speed
Note: See table 12.4 for a list of connect speed values.
Use this command
AT&N=x
Sportster Flash x2 - User's Guide
Use
&N
&U
&N and &U
Where x is
A value from 0 to 31
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