SMS-Alerting with MultiModem

Model: GPRS MTCBA-G-EN-F4-ED-EU

Contents 1 SMS-Alerting with MultiModem 1.1 Requirement 1.2 Installing 1.2.1 MultiModem 1.2.2 SMSTools3 1.2.3 Interceptty 1.3 Configuration 1.3.1 Multimodem 1.3.2 SMSTools3 1.4 Testing

Requirement

You need the follwoing programs and tools:

• Building programs (e.q make, gcc, ...)
• smstools3 Homepage
• Interceptty Homepage
• last released Firmware for the MultiModem FTP Folder
• SIM-Card and the PIN-Code
• Static IP-Address in your Network

Installing

MultiModem

Attention! The MultiModem have in the default settings running a DHCP-Server.

• Connect the MultiModen to your PC/Notebook with a networkcabel (Crossover)
• Open a Webbrowser and type the URL:

http://192.168.2.1

• Login the Webpage with User: admin and Password admin
• Check the newest Firmware for the MultiModem and installed it

ftp://ftp.multitech.com/wireless/mtcba-x-en/

• Under Tools => Firmware upgrade

• Change the IP-Address IP-Setup => General Settings

• Set the Autodail config

• Disabel PPP PPP => PPP Configuration

• Disabel the DHCP-Server

• Save the changes with Save & Restart
• Integrate the MultiModem in your Network

SMSTools3

• Download the latest released smstools3.x.x.tar.gz file form the Homepage and save it on your nagios-server.
• unzip the smstools3.tar.gz file and change into the source-folder.
• make && make install
• chown -R nagios:nagios /var/spool/sms/
• editing the init.d script
  - change user and groups to nagios
  - change the directory tree to your installation

Interceptty

• Download the latest released interceptty.x.x.tar.gz file from the Hompage and save it on your naigos-server.
• ./configure
• make && make install
• configure the interceptty in the /etc/inittab to supply of the virtual serial interface

smsg:<default runlevel>:respawn:/usr/local/bin/interceptty -m nagios,nagios,0666 '@<IPAddress-MultiModem>:5000' /dev/serial-server

• create symbolic link from /etc/smsd.conf to NAGIOS-PREFIX/etc

Configuration

Multimodem

• Insert SIM-Card in the Modem
• Connect with telnet to the ModemIP (with Portnumber 5000)

telnet IP-ADDRESS 5000
Login: admin
Password: admin

• Check the correct Multiband settings

ATI0

WAVECOM MODEM
MULTIBAND 900E 1800

For germany is this the right settings, if you have a returncode

WAVECOM MODEM
MULTIBAND G850   1900

You may use this setting for a german vodafone link:

WAVECOM MODEM
MULTIBAND G900   1800

You can set the MULTIBAND with command

at+WMBS=5,0

Using the AT Command "at+wmbs=<Band>[,<param>]"
For example, if you want to change to 900/1800 MHz, and would like the setting to take effect immediately, type:

at+wmbs=5,1

The first integer sets the <Band> (5 in the above example):

• 0: mono-band mode 850 MHz
• 1: mono-band mode 900 extended MHz (900E)
• 2: mono-band mode 1800 MH
• 3: mono- z band mode 1900 MH
• 4: dual-band mode 850/1900 MHz
• 5: dual-band mode 900E (extended) / 1800 MHz
• 6: dual-band mode 900E (extended) / 1900 MHz

The second integer sets the <Param> (1 in the above example):

• 0: The wireless CPU will need to be reset to start on the specified band.
• 1: The change is effective immediately: the GSM stack is restarted with the specified band.

SMSTools3

• Open the /etc/smsd.conf with your favorite editor

devices = GSM1
logfile = /var/log/smsd.log
loglevel = 7
blocktime = 60
alarmlevel = 5
alarmhandler = /usr/local/bin/alarm.sh
user = nagios
group = nagios
infofile = /var/run/sms/smsd.working
pidfile = /var/run/sms/smsd.pid

[GSM1]
device = /dev/serial-server
# pre_init = no
keep_open = no
incoming = no
baudrate = 2400
send_delay = 10
pin = 1234
rtscts = no
cs_convert = yes
report = no
regular_run_interval = 60
regular_run_cmd = AT+CREG?;+CSQ;+COPS?
regular_run_statfile = /dev/shm/sms_stat

• Create symbolic link at /etc/smsd.conf to /usr/local/nagios/etc

ln -s /etc/smsd.conf /usr/local/nagios/etc

Testing