HUAWEI UMTS M2M Module V100R001
AT Command Interface Specification
Issue 18 (2009-06-22)
Commercial in Confidence
Page 28 of 169
0-127 The S3 character is set in the form of ASCII code value.
3.4 Response format character S4
3.4.1 Command Syntax
Command
Possible response(s)
S4=<value> <CR><LF>OK<CR><LF>
S4? <CR><LF><value><CR><LF><CR><LF>OK<CR><LF>
3.4.2 Description
This command is used to set the response format character S4. S4 saves the
response format character in the form of ASCII code value. This character is sent by
MS, and serves as a part of the header, tail and end mark of the “result code” and
“information response”.
If the S4 character is changed in a command line, the “result code” of this command
line will use the new S4 character immediately, rather than waiting until the next
command line.
3.4.3 Defined Values
<value>:
0-127 The S4 character is set in the form of ASCII code value.
3.5 ME response format command V
3.5.1 Command Syntax
Command
Possible response(s)
V[<value>] <CR><LF>OK<CR><LF>
3.5.2 Description
This command is used to set the format of “result code” and “information response” of
the AT command, including the composition of the header and tail, and the form of the
result code contents. The result code contents may be in the form of numerals or
detailed strings. The following table describes the influence of format setting on the
format of “result code” and “information response”. <cr> means S3 character, and <lf>
means S4 character.
Table 3-1
Influence of V parameter on the response format
Summary of Contents for EM770W
Page 2: ......
