Limiting The Lowest Possible Connect Speed; Limiting A Range Of Possible Connect Speeds - US Robotics Sportster Flash x2 User Manual

Limiting the Lowest Possible Connect Speed

The &U command allows you to limit the lowest possible connect
speed. If a remote modem attempts to connect to your Courier with x2
at a speed lower than &U, your Sportster with x2 will not allow it to
connect.
To limit the
Lowest possible
connect speed
Note: See table 12.4 for a list of connect speed values.

Limiting a Range of Possible Connect Speeds

By setting &N and &U values, you can limit the range of speeds at
which your Sportster with x2 connects. If a remote modem does not
connect to your Sportster with x2 at a range between the speeds
designated by the &N and &U commands, your Sportster with x2 will
not allow it to connect.
Note: The link speed associated with the &U argument cannot be
greater than the link speed associated with &N argument.
Use the following table to understand the relationship between &U and
&N commands:
If &U And &N
Equals Equals zero
zero
Is greater than
zero
Is greater Is greater than
than zero zero and greater
than &U
20 Sportster Flash x2 - User's Guide
Use this command
AT&U=x
Then your modem
Connects at the highest possible
speed.
Connects at the &N speed only.
Connects at the highest possible
speed in the range from &U to &N.
Where x is
A value from 0 to 31