Technical information

Chapter 2: AT+i Commands Reference
May 31, 2008 AT+i Commands Reference Manual 2-41
Special Modem Commands
+iMCM - Issue Intermediate Command to Modem
Syntax: AT+iMCM[:<AT command>]
Sends a single AT command to the modem during an internet
session or enters Modem Command mode.
Parameters:
<AT command> Optional single AT command to be sent to modem.
Command Options:
<AT command> W24 puts the modem in command mode by issuing the (+++)
escape sequence and then sends <AT command> to the modem,
followed by a <CR>. <AT command> must include the AT prefix.
After receiving the modem's response, W24 restores the modem
to online operation mode by issuing the ATO command.
If <AT command> is not specified, W24 enters Modem
Command mode. In this mode, all following commands are
transferred as-is to the modem. Modem replies are relayed back
to the host processor. W24 does not translate the commands.
Modem Command mode is exited after the host issues the ATO
command. W24 transfers the ATO command to the modem and
relays the modem's response back to the host.
Returns: Modem's responses including command echo, if enabled.
Followed by:
I/OK When the modem successfully returns online.
I/ERROR If modem was unable to go back online.