Chapter 2: Introduction to AT Commands
December 31, 2007 AT Commands Reference Manual 2-5
AT Commands Protocol & Structure Configuration
The AT commands message flow and structure may be configured by the terminal.
The G24 can be configured not to follow a command with an echo and/or results code. It can be
configured to transmit the results code in either of two ways: Verbose or Numeric. This (and
other) configurations can be set using the following commands:
The figure below shows the flow and structure configuration commands:
Figure 2-4: Flow and Structure Configuration Commands
Command Description
S3=[<value>] Command line termination character (default setting 0x13).
S4=[<value>] Response formatting character (default 0x10).
S5=[<value>] Command line editing character (default 0x 8).
E[<value>] Command echo (default 0, meaning the G24 does not echo commands).
Q[<value>] Result code suppression (default 0, meaning the G24 transmits result
codes).
V[<value>] G24 response format (default 1, meaning verbose format).
X[<value>] Defines CONNECT result code format.
ATQx
ATEx
ATS3=x
A
A
A
A
T
T
T
TC
C
M
M
D
D
1
1
T
C
C
M
M
D
D
O
O
K
K
2
2
2
2
<CR>
<CR>
<CR>
<CR>
<CR>
<CR><CR>
<CR>
ATS5=x ATS4=xATVx
<LF>
<LF><LF>
<LF>
1
1
=
=
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