238
N
n
Sets the modulation negotiation mode for the modem to establish a connection with a
remote modem operating at a different speed.
Available options:
• N0—Forces the modem to connect at the speed specified in the S37 register and
the ATBn command.
• N1—Enables the modem to start connecting at the speed specified in the S37
register and ATBn command. However, the speed may drop during the negotiation.
This option is the default.
O
n
Forces the modem to return to data mode.
Available options:
• O0—Returns to data mode.
• O1—Initiates an equalizer retrain sequence before returning to data mode.
• O3—Negotiates the transmission speed before returning to data mode.
After you use the
+++
command to place the command in command mode, you can use
an
ATO
n command to change the modem to data mode.
Q
n
Enables or disables the modem to send result and status codes to the configuration
terminal.
Available options:
• Q0—The modem sends result and status codes. This option is the default.
• Q1—The modem does not send result and status codes.
S
r=n
Sets the contents of S register r to value n.
• Value range for the r argument—0 to 27, 29, 31 to 33, 35, 37, and 89.
• Value range for the n argument—0 to 255.
T
Sets tone dialing (the default). This command can also be used as a dialing modifier.
P
Sets pulse dialing. After you execute this command, the modem performs pulse dialing
for all calls until you execute the
T
command. The
P
command can also be used as a
dialing modifier.
V
n
Specifies the result code format.
Available options:
• V0—Sends numeric result codes.
• V1—Sends text-form result codes (the default).
Examples
# On Async 2/4/0, instruct the modem to dial 169.
<Sysname> system-view
[Sysname] interface async 2/4/0
[Sysname-Async2/4/0] sendat ATD169
# On Serial 2/1/0, instruct the modem to dial 169.
<Sysname> system-view
[Sysname] interface serial 2/1/0
[Sysname-Serial2/1/0] physical-mode async
[Sysname-Serial2/1/0] sendat ATD169