SimCom SIM7500 Series At Command Manual page 341

will be coded as <ETX><ETX>. Single <Ctrl+Z> means end of the HTTP request data or end of
the HTTP responded data.
<ETX> is 0x03, and <Ctrl+Z> is 0x1A.
For this command there may be a lot of DATA which need to be transferred to DTE using serial
port, it is recommended that the AT+CATR will be used.
NOTE: For HTTP/HTTPS operation, The "Secure Hyper Text Transfer Protocol Service" chapter
AT set is recommended to be used. The AT+CHTTPACT is only used to support old HTTP
application.
SIM PIN References
YES Vendor
Syntax
Test Command
AT+CHTTPACT=?
Write Command
AT+CHTTPACT=
"<address>",<port>
Defined values
SIM7500_SIM7600 Series_AT Command Manual_V1.07
Responses
+CHTTPACT: "ADDRESS", (1-65535)
OK
Responses
+CHTTPACT: REQUEST
+CHTTPACT: DATA, <len>
...
+CHTTPACT: DATA, <len>
...
...
+CHTTPACT: 0
+CME ERROR
+CHTTPACT: <err>
ERROR
+CHTTPACT: REQUEST
+CHTTPACT: <err>
ERROR
+CHTTPACT: REQUEST
+CHTTPACT: DATA, <len>
...
+CHTTPACT: DATA, <len>
...
...
+CHTTPACT: <err>
ERROR
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340 2017-12-25