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COMSPHERE 3800 Series Modems – Model 3830
D-2 August 1998 3830-A2-GB91-30
The following section discusses those V.25bis commands supported by
the Model 3830 modem and the responses to those commands. Tables
D-1 and D-2 in the Command Response section list the
V.25bis command and response and the analogous AT command.
NOTE
The Model 3830 modem must be configured for
V.25bis dialing. Refer to the &M or &Q commands
listed in Chapter 4,
AT Command Set and
S-Registers
.
NOTE
The character format for Asynchronous Dialing
mode is 7 data bits, even parity, and 1 stop bit.
The character format for Bisynchronous Dialing
mode is 7 data bits, odd parity, and 1 stop bit.
The character format for HDLC Dialing mode can
be 8 data bits, no parity, and 1 stop bit; 7 data bits,
odd parity, and 1 stop bit; or 7 data bits, even
parity, and 1 stop bit.
Character format is determined by the DTE. The
modem detects this format when an AT prefix is
entered from the DTE.
Call Request Commands
Call Request commands are issued from the DTE to the modem and are
responsible for initiating any dial calls. Call Request commands
include Call Request with Number Provided (CRN), Call Request with
Stored Memory Address Provided (CRS).