Data Sheet

Smart Machine Smart Decision
SIM800 Series_AT Command Manual_V1.09 191 2015-08-03
<display>
0 Report jamming status via URC every 3000ms. (only
when <mode> is set to “1” or “3”)
1 Report jamming status via URC when jamming status
changed.(only when <mode> is set to “1” or “3”)
Parameter Saving
Mode
NO_SAVE
Max Response Time -
Reference Note
 When you query jamming detection status after enable jamming
detection mode, you will get the URC of the format below:
+SJDR:1,<mode>,<var>,<display>,<result>
<result>=0, means no jamming.
<result>=1, means jamming is detected.
<result>=2, means industrial interference is detected.
 “+SJDR: INTERFERENCE DETECTED” indicates industrial
interference which signifies unintentional radio link disturbances by
strong industrial radio sources.
 Jamming detection PIN is designed to indicate jamming by
outputting different level. When jamming is detected, the PIN will
output a high level, otherwise, it will output a low level.
 Jamming detection PIN is different among SIM800 series project,
please refer to chapter 21 for details.
6.2.59 AT+CPCMCFG Set PCM Parameter
AT+CPCMCFG Set PCM Parameter
Response
+CPCMCFG: (0-1)
OK
Test Command
AT+CPCMCFG
=?
Parameters
See Write Command
Response
+CPCMCFG: <format>
OK
Read Command
AT+CPCMCFG
?
Parameters
See Write Command
Write Command
AT+CPCMCFG
=<format>
Response
OK
ERROR