Additional Result Code Sub Sets7-2 - 3Com Courier Reference

7-2 C 7: C
HAPTER ONTROLLING RESULT CODE DISPLAYS
Additional Result
Code Subsets
ARQ (Automatic Repeat Request) is used in this manual to denote calls
that use error control.
.
For your modem to
NOT display ARQ result codes.
This setting pertains only to the display of codes and not to
ARQ function.
Display ARQ result codes.
If the Courier V.Everything modem is set to X0 and the
connection rate is 1200 bps-56 Kbps, a result code is
displayed.
Display modulation indicators (HST, V32, VFC, V34, or
DIGITAL). If your software cannot handle the added
modulation information, select &A1 or &A0.
Display error control (LAPM, HST, MNP, or NONE) and data-
compression type (V42 bis, MNP5) indicators.
The numeric identifiers for &A3 result codes are the same as those use
for &A2. If you request numeric display (V0) and &A3, you won't be able
to distinguish &A2 from &A3 codes. Also, &A3 result codes may not be
compatible with some software.
Command
AT&A0
AT&A1
AT&A2
AT&A3 (Default)