Connect

• Add your SIM card to the Telit GSM modem and attach it via USB port to your server.
• To find the port where your GSM modem is attached, execute the following script after you’ve marked it as executable.

#!/bin/bash
for sysdevpath in $(find /sys/bus/usb/devices/usb*/ -name dev); do
(
syspath=”${sysdevpath%/dev}”
devname=”$(udevadm info -q name -p $syspath)”
[[ “$devname” == “bus/”* ]] && continue
eval “$(udevadm info -q property –export -p $syspath)”
[[ -z “$ID_SERIAL” ]] && continue
echo “/dev/$devname – $ID_SERIAL”
)
done

# ./listdev.sh/dev/ttyACM0 - Telit_wireless_solutions_Telit_Wireless_Module_351579057468926/dev/ttyACM1 - Telit_wireless_solutions_Telit_Wireless_Module_351579057468926/dev/ttyACM2 - Telit_wireless_solutions_Telit_Wireless_Module_351579057468926/dev/ttyACM3 - Telit_wireless_solutions_Telit_Wireless_Module_351579057468926/dev/ttyACM4 - Telit_wireless_solutions_Telit_Wireless_Module_351579057468926/dev/ttyACM5 - Telit_wireless_solutions_Telit_Wireless_Module_351579057468926/dev/ttyACM6 - Telit_wireless_solutions_Telit_Wireless_Module_351579057468926/dev/input/mouse2 - VMware_VMware_Virtual_USB_Mouse/dev/input/event4 - VMware_VMware_Virtual_USB_Mouse/dev/input/js0 - VMware_VMware_Virtual_USB_Mouse/dev/input/mouse3 - VMware_VMware_Virtual_USB_Mouse/dev/input/event5 - VMware_VMware_Virtual_USB_Mouse

Take a note of the device-path (/dev/ttyACM0)

Configuration

/etc/smsd.conf: This sample configuration file works fine in our productive environment on a SIM card without PIN code enabled – if you need to configure a PIN (if enabled) try configuring “pin=” . Make sure you use the correct device-path from above (device=/dev/ttyACM0) at “device=”.

# Example smsd.conf. Read the manual for a description
# once your configuration is OK, set log level lower (5 is good in most cases)
devices=GSM1
logfile=/var/log/smsd/smsd.log
loglevel=8
user=root
infofile=/var/run/smsd/smsd.working
pidfile=/var/run/smsd/smsd.pid
# 3.1.5 introduced smart logging
smart_logging=yes

 

[GSM1]
init=ATE0
incoming=no
rtscts=no
cs_convert=yes
report=no
mode=new
device=/dev/ttyACM0
pin=0014
baudrate=115200

Testing

Configure your hyperterminal session by using minicom -s

# minicom -s

Select “Serial port setup”

Make sure your settings looks like this (A – Serial Device must match the path from above, E – Bps/Par/Bits must be 19200 8N1 or 115200 8N1). Press ENTER to save your setting.

Select Exit to open the connection to the GSM modem

The connection is initalized

The connection is open, the GSM modem is ready to receive commands

Send SMS by using AT commands. NOTE: In this example we have removed the PIN of the SIM card, if the PIN is still present make sure you are properly authenticated – additional details please see the chapter ‘PIN codes by using AT commands’ below)ATOKAT+CMGF=1 -----> set message format, see AT referenceOKAT+CMGS="+41796316771"> Hello World!><PRESS CTRL-Z to send the message>
+CMGS: 255OK

To exit minicom press CRTL-A and then x or q.

Services

Make sure the smsd service is enabled to start on boot# chkconfig --list smsdsmsd 0:off 1:off 2:off 3:on 4:off 5:off 6:off


Enable the service on boot for runlevel 3,4 and 5 by using the following command# chkconfig smsd on

To start/stop the service use following command# service smsd stop# service smsd start

Make sure the smsd service is running by using the command line
# service smsd statussmsd (pid 1476 1475) is running...
Or check the service status via OP5 webbased GUI

Make sure you can send a SMS message by using OP5 webbased GUI.

To send SMS notifications, make sure your contacts have filled out the ‘Pager’ information

Troubleshooting

CMS Error: 314

AT+CMGS="+41796316771"+CMS ERROR: 314
CMS Error: 314 usualy means the device is busy and you have to try later again. Sometimes you can try as long as you want, you wont become able to send messages. If this is the case try to reset your GSM modem by using following command and try again afterwards, you may have solved the problem with that.

AT&F

CMS Error: 500

CMS ERROR: 500 is unfortunately a very generic error message. Try to send an SMS directly without storing it to the SIM.

AT+CMGS    ‘ Send an SMS directly without storing to the SIM
AT+CMGW   ‘ Writing an SMS to the SIM card and then send the SMS
AT+CMGR    ‘ By using the CMGR command you can verify if the SMS is written to SIM and it’s current status

Read your configured Service-Center number configured on your SIM card to send SMS messages (for example the number of Swisscom)AT+CSCA?
+CSCA: "+41794999000",145


If the number is not correctly configured then change it by usingAT+CSCA="+41794999000",145
OK