Command values:
AT&C0
DCD always ON.
AT&C1
DCD ON when connected to remote host.
AT&C2
DCD always OFF.
AT&C3
DSR controlled via I/O control feature.
6.16 &N RI Configuration
This parameter determines how the modem controls the state of the Ring Indicator
circuit.
Default:
&N
Storage:
&W
Command Values:
AT&N0
RI always ON.
AT&N1
RI simulates incoming ring.
AT&N2
RI always OFF.
AT&N3
RI controlled via I/O control feature.
AT&N4
RI acts as watchdog output (changes state once per
second under normal conditions).
6.17 AT+LCCROK Send OK Response To <CR>
Enables or disables sending of an
OK
response when the unit receives the <CR>
(carriage return) character by itself.
Default:
0
Storage:
&W
Command
Command values:
AT+LCCROK=0
Do not send OK in response to <CR>
AT+LCCROK=1
Send OK in response to <CR>
6.18 AT+LCNOLF Disable Sending <LF> In Response Messages
Enables or disables sending the <LF> (line feed) character in response messages.
Default:
0
Storage:
&W
Command
Command values:
AT+LCNOLF=0
Send <LF> in response messages
AT+LCNOLF=1
Do not send <LF> in response messages
6.19 AT+LCNOER Disable ERROR Response To Unknown Commands
Enables or disables sending an ERROR response to unknown commands. When the
ERROR response is disabled, the modem will instead send an
OK
response to unknown
commands. This may allow the modem to be used in applications where the host issues
AT commands that would otherwise be incompatible with the modem.
Default:
0
