AT Command Set Operation
AT Command Reference Tables
060R122-000
SpectraComm Dual V.34 Modem
4-19
Issue 15
Installation and Operation
&U
n
Trellis coding
Controls Trellis coding when the modem is operating in V.32 mode at 9600 bps.
&U0
Enables Trellis coding.
&U1
Disables Trellis coding at 9600 bps; Enables partial Trellis coding in V.34 modulation.
V
n
Result code type
Controls the transmission of result codes. Refer to the
\V
n
command for a list of all
possible result codes and refer to
for message descriptions.
V0
Selects non-verbal (numeric equivalent) result codes to be transmitted. The connect
message is the VF line speed.
V1
Selects verbal result codes. The connect message is the DTE speed, except for V.14
mode.
&V
View stored phone
number
Displays the ten stored telephone number cells. This command is not affected by
factory defaults.
%V
n
Command format
Determines the command format.
When the modem is configured in synchronous data mode (
&M1
), the
%V0
or
%V1
commands will be affected. This command is not affected by factory defaults.
Refer to
S25
for details.
%V0
AT command set
%V1
V.25
bis asynchronous command set
%V2
V.25
bis High Level Data Link Control (HDLC) command set
%V3
V.25 bis IBM Binary Synchronous Communication (BSC) command set
%V4
None
\V
n
Connect message type
Determines the type of connect message sent to the DTE when a data link is
established. Refer to
as noted below for message details.
\V0
Options the modem to send the standard GDC Connect message upon reaching fata
mode plus V.42 messages after the link negotiation. The connect message displays
VF line speed. When AES Encryption is in effect,
AES
is added to the end of the
protocol string.Refer to
and
for a description of
\V0
connect
messages.
\V1
Options the modem to delay sending the Connect message until an error correction
link has been established. The Connect message indicates DTE speed. If a V.14
connection was established, the Connect message will indicate V Fspeed. When
AES Encryption is in effect,
AES
is added to the end of the protocol string.
for a description of
\V1
connect messages.
\V2
Options the modem to delay sending the Connect message until an error correction
link has been established. The Connect message indicates DTE speed. If a V.42
error corrected link has been established,
/REL
will be included at the end of the
message. Refer to
for a description of \V2 connect messages.
\V3
Sends only the Connect message after the link negotiation. The Connect message
indicates VF rate for V.13 and V.14 connections, and indicates the DTE rate for all
other connections.
\V4
Displays the transmit and receive DCE rate as
CONNECT
rrrrr
ttttt
,
where
rrrrr
is receive speed, and
ttttt
is transmit speed.
(Numeric result codes in asymmetrical mode indicate the receive speed.)
When AES Encryption is in effect,
AES
is added to the end of the protocol string.
Summary of Contents for 060A027-001
Page 137: ......
