WMO2 G900 / G1800 / G1900
WCOM/GSM/WMO2/WMO2ATDOC
Friday 21 May 1999
WAVECOM confidential ©
17
3
AT Commands interface
This chapter describes the interface based on the Hayes protocol
standard between the TE and the ME. The AT commands presented
here in are intended to manage voice, data and fax communication
as well as SMS sending and receiving.
3.1
Command syntax
There are 3 types of commands:
1.
Set command:
using the = (equal) character, it is possible to assign a value
to a parameter.
2.
Read command:
using the ? (question mark) character, it is possible to read the
current setting of a parameter.
3.
Test command:
using the character sequence =? (equal followed by question
mark), it is possible to test if a parameter is supported by the
modem and to read the supported values for that parameter.
Examples:
AT+CPIN=####
' to enter the PIN code of the SIM.
ATS0?
' to determine the number of ring indicators
awaited before automatically answering.
AT+COPS=?
' to determine which PLMN are currently
available.
The following only applies in command mode.
All available commands for the WMO2 modem line are presented in
the chapter 4.
