DART 300 Migration Guide Comparative AT Command Reference
2110291 Rev 1.0 Page 21
Table 4-1: Basic AT Commands (continued)
Command DART 200 DART 300
D [options] Dial
Takes dial modifier T or P for TCP and UDP
sessions respectively.
Takes dotted-decimal IP and optional port
number delimited using a slash (/); e.g.
DP192.0.2.1/2100 – dials a UDP session to
port 2100. If the port number is omitted a
value of 23 is used.
Uses dial modifier S for Quick Dial from a list
of stored addresses; e.g. DTS3 – dials a TCP
connection to the third address in the list.
A TCP connection attempt is repeated every 10
seconds for a total of 60 seconds.
Will auto-register on dial is \R2 is set.
Result codes vary – see DART 200 reference.
Dial
Assumes the protocol from the setting of
+WS45.
Takes dotted-decimal IP and port number
delimited with a period (.); e.g.
D192.0.2.1.2100 – dials a session to port
2100 using the protocol set in +WS45. If
either parameter is omitted, the last dialled
value is used.
Allows a Quick Dial using an index to the
Friends List; e.g. D3 – dials the third entry.
TCP connection attempts are issued up to three
times at 0, 10s, and 30s within the duration of
the timer set in S7.
UDP behaviour is the same as DART 200.
Will auto-register if the modem is not currently
registered on the CDPD network.
Result codes vary – see DART 300 reference.
E[n] Echo (Command State)
Controls echoing of characters from the host
(DTE) back to the host when the modem is in
command state.
Echo (Command State)
Same behaviour.
F[n] Echo (Data State)
Controls local echo of data while on-line. Note
enabled is set with F0 and disabled is set with
F1.
PAD Local On-Line Echo
Not supported. When using TCP or UDP
PAD modes, a +WS register is used to control
local echo.
F0 = +WS62=1 (enabled)
F1 = +WS62=0 (disabled)
H[n] Hook Control
Supports four options:
H0 – transmit buffers, then close session.
H1 – no action taken; return OK.
H2 – close session, discarding buffers.
H3 – discarding buffers, close session, and
deregister.
Hook Control
Supports two options only:
H0 – close session and remain registered is
equivalent to the DART 200 H2, and
H1 – close session and deregister is equivalent
to DART 200 H3.
Buffered packet data is discarded in both cases.
I[n] Identification/Checksum Command
Parameters and meanings vary; consult
DART 200 reference.
Identification/Checksum Command
Parameters and meanings vary; consult
DART 300 reference.
O On-line
Causes the modem to go from command state
to data state for an existing session.
On-line
Same behaviour.