4-15
Issue 3 April 1994
Table 4-1. AT Command and S-Register Reference (14 of 27)
AT
Command
or
S-Register
Description
&Y
n
Load Configuration Options on Power-Up
This command determines which set of configuration
options are loaded into Active memory when a modem
power-up occurs.
&Y0
Loads configuration options from User 0.
&Y1
Loads configuration options from User 1.
&Z
n=x
Store Telephone Numbers
Stores telephone number
n into directory x
(1 and 2).
\A
n
Maximum Frame Size
This command determines the maximum frame (or
block) size used for V.42 or MNP 4–2 error control
operation. For example, if the telephone connection is
poor, this allows you to adjust the data’s block size and
possibly improve the modem’s performance. Note that
for V.42 operation, the modem has a maximum size of
128 characters.
\A0
64 characters per frame
\A1
128 characters per frame
\A2
192 characters per frame
\A3 256 characters per frame
\A4
32 characters per frame
\A5
16 characters per frame
