When someone sends a message on a mobile device, someone on the website - or another mobile device - has to respond.
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Doesn't matter what kind of device the message is going to (wireline phones, mobile phones, PDAs or computers) or whether the message has to travel over the Internet or the public switched telephone network, for example.
This year, DHS is focusing its message on that glorious little device that inspires adults to line up in front of Apple stores like preteen girls on the opening day of a new Twilight movie: the smartphone.
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In a text message to the user's device, drivers will get the location and severity of accidents or new road construction causing areas of heavy congestion.
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"The message did not arrive at the device meant to deploy the chute, " said Gentry Lee, chief engineer of planetary systems at the Jet Propulsion Laboratory in Pasadena, California.
When the device reboots, tap Ok to the message.
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Then, you can use the free Android Gmail app to customise the Label and Notification settings so that the device only alerts you when you have received a message labelled top priority.
Of course, I get an error message on my iPad which I find most annoying, telling me that my device does not support Flash.
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SIMpill, a South African firm, makes a small device that clips on to a medication bottle and sends a text message to a central computer whenever the cap is removed.
Add to that the increased use of unsecured public Wi-Fi spots that now are dominated by unsecured smart device users and you might as well have a plane skywrite your message for all the world to read.
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Charities often use message texts as a way to raise money by allowing consumers to use their mobile device to text a donation for storm relief, vaccinating children or other causes.
Whether or not regular cellphones are included, the message is the same -- if you haven't been building a popular flagship device or catering to buyers in Beijing, you've likely been left out in the cold.
Using a packet sniffer while his device was in airplane mode, he demonstrated how each numeric tap and every received text message is logged by the software.
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Any man who builds a device with a big red light on it that blinks at you when you have an incoming message needs to be taken seriously.
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Malware can invade a smartphone when a consumer unknowingly clicks a malicious link in a text message or email, surfs a risky website, or downloads and uses a potentially unsafe app on their device.
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In other words, the message which has got through to the frontlines is - if it does not work, blame the operator not the device.
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