Download What is SMS Forwarding?

NetComm Wireless
SMS Forwarding
Feature Spotlight
What is SMS Forwarding?
In the consumer market, SMS has been a long used and
well known form of sending messages to other people.
In the emerging machine-to-machine market, SMS is often
used as a means of relaying instructions to a device.
Many of the functions of the MachineLink 3G can be
controlled using SMS, providing an alternative means of
operating it when mobile broadband is down.
Similarly, downstream devices connected to the
MachineLink 3G can receive instructions via SMS messages
through the use of the router’s SMS forwarding feature.
This presentation demonstrates how to configure and use
the SMS forwarding feature to communicate with downstream
devices.
SMS Forwarding example diagram
SMS -> IP Forward
Engine
Call
home
Phoning
home… sudo
reboot
TCP/UDP
packets
Internet
NetComm
Wireless
router
Network
backbone
Public IP
Private IP
Downstream
device
NAT
Call
Home
SMS Forwarding example diagram
SMS -> IP Forward Engine
rebooting
sudo reboot
reboot
TCP/UDP packets
Cell tower
Network backbone
NetComm
Wireless
router
Downstream device
Configuring SMS Forwarding
Configuring SMS Forwarding
Example use scenarios
SMS Forwarding demonstration
Below is a screenshot showing the configuration of the SMS forwarding function. We are going to
send an SMS message to the router which will then be relayed via UDP port 1550 to a Windows
machine. We will then capture the information on the computer to demonstrate the SMS being
converted to IP packet data and being transmitted downstream.
SMS Forwarding demonstration - UDP
The computer connected
to the router on
192.168.1.190 was
running Wireshark at the
time the message was
sent and captured the
UDP IP packet data of the
event.
Keep in mind that while
this is a human readable
string of text, the SMS
you forward can contain
other forms of instructions
used to control or
communicate with a
device connected to the
router locally.
SMS Forwarding demonstration - TCP
Some final words on SMS Forwarding
SMS Diagnostics and SMS Forwarding may be used at the same time
When SMS forwarding is enabled, all messages are passed to the downstream device,
including SMS Diagnostics messages. The downstream device should be capable of filtering out
the irrelevant messages.
SMS messages may be forwarded a TCP port and a UDP port simultaneously.
An optional feature for use in OpCos rather than GDSP use is that SMS messages may also be
forwarded to another mobile number in addition to via TCP and/or UDP.
Further information
More information:
There is a very detailed and informative section in the user guide dedicated to this feature.
There are many more supported commands listed in the user guide.