How to send SMS with GEMALTO EHS6T LAN

There are different way to send SMS by LAN port on modem H6T LAN

If you want to send SMS messages from a LAN connected device, you can write a Java application for that.
One example is here: EXAMPLE SMS BY JAVA .
.
You can listen to a port on the Linux (OpenWRT) side and send message to that port from any of the four
customer devices.

Another way is to use the OpenWRT SMS messaging, see:
root@OpenWrt:/usr/local/bin# ls -l
-rwxr-xr-x 1 root root 2312 Mar 11 2016 sendsms
-rwxr-xr-x 1 root root 1206 Mar 11 2016 sms2html
-rwxr-xr-x 1 root root 999 Mar 11 2016 sms2unicode
-rwxr-xr-x 1 root root 362664 Mar 11 2016 smsd
-rwxr-xr-x 1 root root 754 Mar 11 2016 unicode2sms

A port that may be used is at least:

root@OpenWrt:/# cat < /dev/ttyACM3
ati
Cinterion
EHS6
REVISION 03.001

OK

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Possible to test writing to that port from a terminal window IP address:1234.

PS: for stability, I configured a watchdog reset to the EHS6T LAN terminal by:
at+ipr=1200 serial speed for these fardware commands
WD=ON,1,1 // enables the watchdog, WD=ON,0,0 // disables the watchdog
WD=RST_REP,1800000,9 // Reset every 30 minutes

-the modem green LED flashes twice = success
-the modem green LED flashes four times = error, typo etc.