SIM card
- This topic has 1 reply, 2 voices, and was last updated 10 years, 1 month ago by
.
Viewing 2 posts - 1 through 2 (of 2 total)
Viewing 2 posts - 1 through 2 (of 2 total)
- You must be logged in to reply to this topic.
Bryon Davis.
Franklin SilvaWe have installed SIM Card in different local carrier, we have the following problem: one of them works fine, but another carrier (digitel) does not work “are there any special settings on the modem to be taken into account for each carrier depending on the local carrier can? configiuracion change the modem?
Modem1 Carrier1: Works well, use default settings unchanged
Modem3 Carrier2: NO works sms sending, receiving signal from the antenna carrier without establishing connection (and have been tested and work the proper activation SIM Card)
appreciate your help!.
Bryon DavisHi Franklin,
There isn’t any special settings on the modem that would effect this. Does the non-working SIM and provider support 2G? The iSMS currently only supports 2G.
Does the non-working SIM have a pin code? The iSMS currently doesn’t support SIMs with pin codes.
You can do some AT commands to see the status of the modem. To do this telnet to the iSMS on port 5000 ( the port may vary depending on the modem which is having troubles. Modem 1 is port 5000, Modem 8 is port 5007). The telnet should connect but no login or prompt will be shown. The first command will not echo the typed keys.
Enter the following AT commands:
1. AT (Verify that you receive an OK response)
2. AT+CPIN?
This should respond with Ready. If not, then the SIM has Pin code enabled.
3. AT+CREG?
a response of 0,0 usually means no SIM, 0,1=registered successfully, 0,2=no signal
4. AT+CSQ
A response of +CSQ: 99,99 means no signal.
5. AT+WMBS?
Make sure the response matches the proper band for their region. US should respond 4,0.
Regards,
Bryon