Limiting The Lowest Possible Connect Speed; Limiting A Range Of Possible Connect Speeds - US Robotics 000698-13 Getting Started 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 Courier with x2 will not allow it to connect.
To limit the
Lowest possible
connect speed

Limiting a Range of Possible Connect Speeds

By setting &N and &U values, you can limit the range of speeds at which
your Courier with x2 connects. If a remote modem does not connect to
your Courier with x2 at a range between the speeds designated by the &N
and &U commands, your Courier 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
Equals
zero
Is greater
than zero
14-5
Use this command
AT&U=x
And &N
Equals zero
Is greater than
zero
Is greater than
zero and greater
than &U
Table 14.2 Constraints on Link Speed
Where x is
A value from 0 to 32
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.
Using x2