Precidia ipocket232 - Page 99

iPocket232 User Guide Appendix F: MCC
23-CML000293 iPocket232 Inc. F-7
Table F.2: Extended AT& and AT+ Commands
Command
Syntax
Description
Parameters
+Bn
FALLBACK HOST
Enables or disables switchover to a fallback
host in case of primary host connection
failure.
An ATD command always attempts a
connection with the Remote IP (primary
host). If FallBack IP is configured and
enabled, upon failure to connect with the
Remote IP the next ATD command attempts
a connection with the Fallback IP. Regardless
of whether a connection is established, the
next ATD command reattempts a connection
to the Remote IP.
n=0
n=1
Disables switchover to
fallback host.
Enables switchover to
fallback host.
+Pstring
FTP PUT / HTTP PUT
Upload from iPocket232 modem to an FTP or
HTTP server.*
string =
ftp://[userid[:pass-
word]@]ipadr[:port]/path/file.ext
+Gstring
FTP GET / HTTP GET
Download from an FTP or HTTP server to the
iPocket232 modem.*
string =
ftp://[userid[:pass-
word]@]ipadr[:port]/path/file.ext
* See page 9 for a description of FTP/HTTP procedures.
Escape to Command Mode
The modem can be moved into command mode in one of two ways: sending the
sequence (pause, +++, pause) to the serial port, or dropping the DTR signal
(AT&Dn).
The first method, sending an escape sequence, moves the modem into command
mode but keeps the connection active. The default escape character is “+” and is
stored in register S2. The default pause value is the value of register S12 (20)
multiplied by 20ms. You can change the defaults by setting the registers with your
own values.
The second method, dropping the DTR signal, is not supported by hardware
platforms that do not have a wire for the DTR signal. Additionally, the reaction to
the DTR signal depends on how you configure the DTR setting using the &Dn
command. See &Dn on page E-4 for DTR settings.