Controlling Link Speeds With &N And &U; Controlling Link Speeds; Limiting The Highest Possible Connect Speed - US Robotics Courier V.Everything Getting Started Manual

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

Controlling Link Speeds

You can use the &N and &U commands to control the link speeds of your
Courier V.Everything 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.
U.S. Robotics 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 Courier 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.
10-4
Table 12.2 Using Link Speeds
Use this command
AT&N=x
Courier V.Everything Getting Started Guide
Use
&N
&U
&N and &U
Where x is
A value from 0 to 32