Config files and steps needed to make a Huawei 4G modem work with kannel to send/receive SMS.

This setup was done on a RaspberryPi 3 running Raspbian GNU/Linux 8 (jessie) with Huawei E3372 4G Modem. You may have to adjust configuration based on OS and type of modem used. I assume you have some knowledge on how kannel works and using it to send SMS.

Always update & upgrade first to be relevant

sudo apt-get update && sudo apt-get upgrade -y

Make sure you have usb-modeswitch

sudo apt-get install usb-modeswitch

/etc/usb_modeswitch.d/12d1:14fe

/home/pi/modem-switch.sh

You can run script manually to check if modem switch happens to be sure.

Run lsusb command Output would be shown as:

from storage mode

ID 12d1:14fe Huawei Technologies Co., Ltd.

to modem mode

ID 12d1:1506 Huawei Technologies Co., Ltd. E398 LTE/UMTS/GSM Modem/Networkcard

/lib/systemd/system/modem-switch.service

Set permissions

sudo chmod 644 /lib/systemd/system/modem-switch.service

Enable service to start on reboot

sudo systemctl daemon-reload
sudo systemctl enable sample.service

sudo apt-get install kannel -y
sudo mkdir -p /var/log/kannel /var/run/kannel /var/spool/kannel/store
sudo chown -R kannel /var/run/kannel /var/spool/kannel/store
sudo chown -R kannel:adm /var/log/kannel
sudo usermod -a -G dialout kannel

Stop the service until we get the config setup right.

sudo service kannel stop

Set kannel to start SMSbox instead of WAPbox

sudo sed -i 's/#START_SMSBOX/START_SMSBOX/' /etc/default/kannel

Create a backup of original config and replace with provided config.

kannel.conf

sudo cp /etc/kannel/kannel.conf /etc/kannel/kannel.conf.dist

/etc/kannel/kannel.conf

Startup kannel

sudo service kannel start

Check if kannel is running

• For modem switching guide NVDCStuff Blog
• Anton Raharja for the kannel integration guide playSMS Documentation
• DexterIndustries for the systemd startup guide DexterIndustries