SIM7000-LTE-Shield
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botletics
SIM7000G with T Mobile NB IoT ??
I am planning to get a SIM7000G shield and use with T Mobile Nb IoT network. Has any body tested to verify that SIM7000G shield works with T Mobile NB IoT and with what brand simcard ?
Thanks
Check out https://www.twilio.com/. They are partnered with T-Moble for IoT solutions.
FYI, I bought a SIM7000G and tried to get it connected. It appears that T-Mobile no longer allows uncertified devices onto their network. At best, I got a 0,3 response to CGREG which means access explictly denied. I was using a Twilio NBIOT SIM.
Hello ... @robbiet480 I'd be curious to hear more about this? I've got a SIM7000A here, newest firmware (AT+CGMR == Revision:1351B04SIM7000A) with a Twilio NB SIM, and was able to get a NB connection to work.
I use the AT Command Tester for SIMCOM, and got the correct settings from there:
RDY
+CFUN: 1
+CPIN: READY
SMS Ready
AT+CGMR
Revision:1351B04SIM7000A
OK
AT+CGSN
8652350300xxx59
OK
AT+CIMI
310240200xxxx36
OK
AT+CCLK?
+CCLK: "80/01/06,00:00:13-24"
OK
AT+CPIN?
+CPIN: READY
OK
AT+CGDCONT?
+CGDCONT: 1,"IPV4V6","iot.nb","0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0,0
+CGDCONT: 2,"IPV4V6","ims","0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0,0
+CGDCONT: 3,"IPV4V6","sos","0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0,1
OK
+CSQ: 99,99
OK
AT+IPR?
+IPR: 115200
OK
AT+COPS?
+COPS: 1
OK
AT+CREG?
+CREG: 0,0
OK
AT+CGACT?
+CGACT: 1,0
+CGACT: 2,0
+CGACT: 3,0
OK
AT+CGATT?
+CGATT: 0
OK
AT+CFUN?
+CFUN: 1
OK
AT+CSCA?
+CSCA: "+12063130004",145
OK
AT+CMGF?
+CMGF: 0
OK
AT+CPSI?
+CPSI: LTE NB-IOT,Online,310-260,0xF194,24795850,362,EUTRAN-BAND4,2391,0,0,-9,-69,-59,20
OK
System Mode: LTE NB-IOT
Operation Mode: Online
Mobile Country Code: 310-260
Mobile Network Code: 0xF194
Location Area Code: 24795850
Cell ID: 362
RF Channel Number: EUTRAN-BAND4
C1 - Coefficient for base station selection: 2391
C2 - Coefficient for Cell re-selection: 0
TAC -Tracking Area Code: 0
SCellID - Service Cell ID: -9
PCellID - Physical Cell ID: -69
Frequency Band: -59
EARFN: 20
AT+CGMR
Revision:1351B04SIM7000A
OK
AT+CGSN
8652350300xxx59
OK
AT+CIMI
310240200xxxx36
OK
AT+CCLK?
+CCLK: "20/04/10,11:31:01-24"
OK
AT+CPIN?
+CPIN: READY
OK
AT+CGDCONT?
+CGDCONT: 1,"IPV4V6","iot.nb","0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0,0
+CGDCONT: 2,"IPV4V6","ims","0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0,0
+CGDCONT: 3,"IPV4V6","sos","0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0,1
OK
AT+CSQ
+CSQ: 23,99
OK
Signal level is -67 dbm. Signal condition is excellent.The signal strength range is -53 dbm (Excellent) to -109 dbm (Marginal).
AT+COPS?
+COPS: 1,0,"T-Mobile",9
OK
Device is currently on "T-Mobile" network.
AT+CGACT?
+CGACT: 1,1
+CGACT: 2,0
+CGACT: 3,0
OK
AT+CGPADDR= 1
+CGPADDR: 1,30.0.162.138,38.7.251.144.83.20.168.224.0.0.0.77.94.105.58.1
OK
IP Address of the connected profile is 30.0.162.138
AT+CGATT?
+CGATT: 1
OK
Device is attached to the network
AT+CFUN?
+CFUN: 1
OK
Device has Full functionality.
AT+CSCA?
+CSCA: "+12063130004",145
OK
SMS service center address is +12063130004
AT+CMGF?
+CMGF: 0
OK
SMS message for is configured for PDU mode
AT+CGREG?
+CGREG: 0,1
OK
The device is registered in home network.
Checking if device is already connected...
AT+CGACT?
+CGACT: 1,1
+CGACT: 2,0
+CGACT: 3,0
OK
Profile 1 with APN iot.nb is already connected
Downloading http://ipv4.ikoula.testdebit.info/1M.iso..
Uploading 1 MB file to http://ipv4.ikoula.testdebit.info/..
Getting Bearer profiles..
AT+SAPBR=4,1
+SAPBR:
CONTYPE: GPRS
APN:
USER:
PWD:
OK
AT+SAPBR=4,2
+SAPBR:
CONTYPE: GPRS
APN:
USER:
PWD:
OK
AT+SAPBR=4,3
+SAPBR:
CONTYPE: GPRS
APN:
USER:
PWD:
OK
Checking registration status...
AT+CREG?
+CREG: 0,0
OK
The device is not registered and is currently NOT searching for a new operator to which to register.
AT+CGREG?
+CGREG: 0,1
OK
The device is registered in home network.
Querying bearer 1 .
AT+SAPBR=2,1
+SAPBR: 1,3,"0.0.0.0"
OK
Bearer 1 is Closed
Bearer 1 is Closed.
Opening Bearer 1...
AT+SAPBR=1,1
OK
Terminate any previous HTTP service...
AT+HTTPTERM
ERROR
Initializing HTTP service...
AT+HTTPINIT
OK
Setting up HTTP parameters..
AT+HTTPPARA="URL","http://httpbin.org/get"
OK
AT+HTTPPARA="CID",1
OK
AT+HTTPACTION=0
OK
HTTP GET is successfull
AT+HTTPREAD
+HTTPREAD: 256
{
"args": {},
"headers": {
"Accept": "*/*",
"Host": "httpbin.org",
"User-Agent": "SIMCOM_MODULE",
"X-Amzn-Trace-Id": "Root=1-5e90add1-e9f99fbaf760b574d8dce6e0"
},
"origin": "172.58.159.84",
"url": "http://httpbin.org/get"
}
OK
AT+HTTPTERM
OK
@Humancell Weird. I specifically contacted Twilio support and they advised me the 7000G wouldn't work because T-Mobile didn't allow uncertified devices on the network. I moved to using Hologram.
Do you know who you talked to in support? (I work for Twilio ... ha ha)
Here is another test I just did:
Checking registration status...
AT+CREG?
+CREG: 0,0
OK
The device is not registered and is currently NOT searching for a new operator to which to register.
AT+CGREG?
+CGREG: 0,1
OK
The device is registered in home network.
Querying bearer 1 .
AT+SAPBR=2,1
+SAPBR: 1,1,"30.1.104.151"
OK
Bearer 1 is Connected.IP address is "30.1.104.151"
Bearer 1 is Connected.
Initializing HTTP service...
AT+HTTPINIT
OK
Setting up HTTP parameters..
AT+HTTPPARA="URL","http://nodered.mytest.com:1880/twilio/nb/test"
OK
AT+HTTPPARA="CID",1
OK
AT+HTTPDATA=21,10000
DOWNLOAD
OK
AT+HTTPACTION=1
OK
HTTP POST is successfull
AT+HTTPREAD
+HTTPREAD: 23
{ "status": "success" }
OK
AT+HTTPTERM
OK
@Humancell Nikolay Rusinov, support ticket # 4012120. He advised the only SimCom module authorized was the 7020G.
If you can figure out what went wrong, that would be great because I'd rather be using Twilio!
Hello ... yes, I believe that if you look at the "official" T-Mobile website, you'll see that there are only a few modules from SIMCOM that are truly "certified" ... but there is nothing related to the SIM that is stopping you from trying and seeing what works.
I know from working closely with SIMCOM they have the SIM7080G also in certification and I got two of them on line this week (with the latest firmware) for both Cat-M1 and NB.
If you have your Twilio NB SIM, give it another try with the commands above (Or using the AT Command Tester for SIMCOM) but make sure you have the latest firmware.
I'll try to give this a try later today. I know i'm on the latest firmware for the G, maybe that's the difference.
Hey, Robbie. I'm tardy to this party, but did you ever get your SIM7000 working with the Twilio SIM card?
