Hi,

I have a SIM7000 evaluation board and I want to do some tests with the T-Mobile NB network.

I can connect to the network, but when I send data (POST) I receive a network ERROR.

I’m not sure about the port. Normally a webserver uses port 80, but I believe I must use port 5683 for this test.

Anybody here who succesfully tested the SIM7000 ?

These are my AT-commands"

AT
OK

AT+CPIN?
+CPIN: READY
OK

AT+CNMP=38
OK

AT+CMNB=2
OK

AT+NBSC=0
OK

AT+CREG?
+CREG: 0,3
OK

AT+CGREG?
+CGREG: 0,5
OK

AT+CGATT?
+CGATT: 1
OK

AT+CPSI?
+CPSI: LTE NB-IOT,Online,204-16,0x04EB,2086502,343,EUTRAN-BAND8,3747,0,0,-3,-83,-82,20
OK

AT+SAPBR=3,1,“APN”,“oceanconnect.t-mobile.nl”
OK

AT+SAPBR=2,1
+SAPBR: 1,3,“0.0.0.0”
OK

AT+SAPBR=1,1
OK

AT+HTTPINIT
OK

AT+HTTPPARA=“URL”,“172.16.14.22:5683”
OK

AT+HTTPPARA=“CID”,1
OK

AT+HTTPDATA=4,10000
DOWNLOAD
OK

AT+HTTPACTION=1
OK

AT+SAPBR=0,1
+HTTPACTION: 1,601,0
OK

Best regards,

Marcel