Filter
Top Products
B
AT COMMANDS,
S REGISTERS, AND RESULT
CODES
The 3C882 ISDN modem AT commands are summarized in
Table B-1, S registers in Table B-2, and result codes in
Table B-3.
AT Command Set
Table B-1 summarizes the AT command set for the 3C882
ISDN modem.
Table B-1 AT Command Set Summary
Command Function (Example) Description
A Answer incoming circuit-switched
ISDN modem call (AT A)
Answers an incoming data call.
%C Compression When enabled, compresses data to
improve data transfer times using the
Stac compression method. The following
check modes are negotiable— None,
One Byte Sequence Number, and
Extended. Extended is the preferred
choice.
%C0 disables compression.
%C2 enables compression.
&C Serial port CD control (AT &C2) &C0 forces CD to remain on at all times.
&C1 forces CD to follow the state of
carrier from the remote system. CD turns
on after CONNECT message is sent to
host (default).
&C2 forces CD to remain on except
temporarily after disconnect.
D (ATD5551234) Dials an outgoing 56/64 Kbps
circuit-switched digital connection.
DD (ATDD5551234) Dials an outgoing switched 56 Kbps
permissive connection.
(continued)