At+Casend Send Data Via An Established Connection; At+Carecv Receive Data Via An Established Connection - SimCom SIM7000 Series At Command Manual

18.2.5 AT+CASEND Send data via an established connection

AT+CASEND Send data via an established connection
Test Command Response
AT+CASEND=? +CASEND: (range of supported <cid>s),( range of supported <datalen>)
OK
Parameters
See Write Command
Write Command Response
AT+CASEND=<ci +CASEND: <cid>,<datalen>
d>,<datalen> ........ //Input data
OK
+CASEND: <cid>,<result>,<sendlen>
If error is related to ME functionality:
+CME ERROR: <err>
Parameters
<cid>
<datalen> Requested number of data bytes to be transmitted
<sendlen> Data bytes that has been sent successfully
<result> see AT+CAOPEN
Parameter Saving NO_SAVE
Mode
Max Response -
Time
Reference Note

18.2.6 AT+CARECV Receive data via an established connection

AT+ CARECV Receive data via an established connection
Test Command Response
+CARECV: (range of supported <cid>s),( range of supported <readlen>)
AT+CARECV=?
OK
Parameters
See Write Command
Write Command Response
AT+CARECV=<ci +CARECV: <cid>,<recvlen>
d>,<readlen> .......
OK
If error is related to ME functionality:
SIM7000 Series_AT Command Manual_V1.03
see AT+CACID
//output data
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Smart Machine Smart Decision
2018-05-08