SimCom SIM7500 Series User Manual

Smart Machine Smart Decision
SIM7500_SIM7600 Series_AT Command Manual_V1.07 2017-12-25
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Table 2-1: Types of Extended Command
Command Type Syntax Comments
Test Command
AT+<NAME>=?
Test the existence of the command; give some
information about the command subparameters.
Read Command AT+ <NA ME >? Check the current values of subparameters.
Write Command AT+<NAME>=<…> Set user-definable subparameter values.
Execution Command AT+ <NA ME > Read non-variable subparameters determined by
internal processes.
NOTE: The character “+” between the prefix “AT ” and command name may be replaced by other
character. For example, using “#” or “$”instead of “+”.
2.3 Information responses
If the commands included in the command line are supported by the Module and the subparameters are
correct if presented, some information responses will be retrieved by from the Module. Otherwise, the
Module will report “ERROR” or “+CME ERROR” or “+CMS ERROR” to Customer Application.
Information responses start and end with <CR><LF>, i.e. the format of information responses is
“<CR><LF><response><CR><LF>”. Inside information responses, there may be one or more <CR><LF>.
Throughout this document, only the responses are presented, and <CR><LF> are intentionally omitted.
SIMCOM CONFIDENTIAL FILE

SimCom SIM7500 Series Specifications

General

Brand	SimCom
Model	SIM7500 Series
Category	Control Unit
Language	English