OP5 Monitor - How to troubleshoot the GSM Modem / GSM Gateway / GSM Terminal? (SMS)

Question

How do I troubleshoot the GSM Modem / GSM Gateway / GSM Terminal?

Answer

Recommendations:

Connect the modem directly to the op5 Monitor server instead of using a Ethernet over Serial solution. This will guarantee that notifications can be sent even if the local network goes down.

Troubleshooting Steps:

1. Try to manually send yourself an SMS:

root@monitor:~# smssend 46733333333 'Test'

Replace 46733333333 with your country code and phone number where you wish to send the SMS. It may take a couple of minutes for the text message to reach your phone.

2. Check that the SMS daemon is running. You should get the following output with one or two random PID numbers at the end:

root@monitor:~# service smsd statussmsd is running with pid: 2550 2544

3. Check how often the modem LED is blinking. Please read the "Overview of LED Operating Status" below for details.

4. Check the SMS daemon log for error messages by running:

root@monitor:~# grep -i "error" /var/log/smsd.log

The command above might find an error line like this:

2011-12-08 13:42:56,3, GSM1: Error: Modem is not registered to the network

This could be three different problems:

• The GSM signal is too weak.
• The SIM card is missing.
• The PIN code is incorrect or isn't configured.
  
  

5. If the server is a brand new op5 Monitor machine, the COM1 port may be redirected to iDRAC.

root@monitor:~# omreport chassis biossetup

If you get output saying:

Serial Communication
------------------------------------------
Serial Communication : On without Console Redirection
Serial Port Address : Serial Device1=COM2,Serial Device2=COM1
External Serial Connector : Serial Device 1
Failsafe Baud Rate : 115200
Remote Terminal Type : VT100/VT220
Redirection After Boot : Enabled

Run the following command:

root@monitor:~# omconfig chassis biossetup attribute=SerialPortAddress setting=Serial1Com1Serial2Com2

The output from the omreport command above should now say:

Serial Communication
------------------------------------------
Serial Communication : On without Console Redirection
Serial Port Address : Serial Device1=COM1,Serial Device2=COM2
External Serial Connector : Serial Device 1
Failsafe Baud Rate : 115200
Remote Terminal Type : VT100/VT220
Redirection After Boot : Enabled

Overview of LED Operating Status for Siemens MC35i / Cinterion TC65:

Overview of LED Operating Status for CEP HT910G:

6. Go through our guide for how to test your modem using Minicom.