Manual

AT Commands Features
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WM_DEV_OAT_UGD_049 - 001 VOLUME 1 August 23, 2007
2 AT Commands Features
2.1 Wavecom Line Settings
A serial link handler is set with the following default values (factory settings):
• speed according to customer choice at order time,
• 8 bits data,
• 1 stop bit,
• no parity,
• RTS/CTS flow control.
Please use the +IPR, +IFC and +ICF commands to change these settings.
2.2 Command Line
Commands always start with AT and finish with a <CR> character, excepted A/
command.
2.3 Information Responses and Result Codes
Responses start and end with <CR><LF>, except for the ATV0 DCE response format
and the ATQ1 (result code suppression) commands.
• If command syntax is incorrect, the "ERROR" string is returned.
• If command syntax is correct but transmitted with wrong parameters, the
"+CME ERROR: <Err>" or "+CMS ERROR: <SmsErr>" strings is returned with
adequate error codes if CMEE was previously set to 1. By default, CMEE is set
to 0, and the error message is only "ERROR".
• If the command line has been executed successfully, an "OK" string is returned.
In some cases, such as "AT+CPIN?" or (unsolicited) incoming events, the product does
not return the "OK" string as a response.
In the following examples <CR> and <CR><LF> are intentionally omitted.
2.4 Proprietary Commands
When a command is Wavecom proprietary, the information is indicated in the
command description.