Could be that your server system get's overheated ... be sure to get an alarm of that ... wherever you are!

Step 1: Unassemble the phone

I got this old Siemens S45 mobile phone. One of these phones where the battery got broken after 1/2 year. While testing with other batteries those small contacts broke and the device got unusable. It still worked. I decided to use the phone for alarmin purpuses on my small Linux server.
Disassembling is not an easy task with this type of phone. You have to find these small plastic "noses" on the left and right side. Best I did to open the case was to slib between the small crack using my fingernails ... some broke during this. But finally the case was open and the parts lay in front of me.
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As it stands now folks, if you are not familiar with LINUX, you will have a much harder time understanding this "ible" as it is currently explained. On the phone part, no phone is going to send any kind of message unless you activate it via active sim or simple plan. There are a lot of 2nd party cell phone service providers out there that will just sell you some minutes on a phone. You take it from there with the sms messaging system. Sorry he did not explain the hookup to his server a little better. I can see a standard interface sending sms messages for a whole lot of things, like your remote cabin has been broken into, your bike has just been stolen, someone entered your house while you were at work, fire alarm, smoke alarm, furnace shut down and outside temp is well below freezing while you are in Tahiti on vacation, etc. Some phones might even be configured to send pictures of what is going on at it's location but that's another "ible" for someone else to figure out!
Hi sillywilly,<br>I agree with you ... this is not one of my best instructables. I like to explain why I built this. The system is meant to be helpful in case of network connection failures also. <br>I did use an sms service for the alarning of &quot;non critical failures&quot; in the past. Meanwhile I am using Nagios and my Android phone for the regular tasks. The phone I described here is still in place but not used very much. It only sends sms messages in case of &quot;severe failures&quot; ... but those do not occur often, until now ;-)<br>
I wish someone could better explain what this device does and how to use it.<br />
I'd insulate the green and white wires to prevent inadvertently shorting out the USB data line. Other than that, the rest of the guide would make it better!
Ahhhh ... but i can make emergency calls for free ... ;-)
emergency calls are free the only emergency calls that arnt free are the ones to ya girlfrend when there is an emergancy How does the phone 'call out' if you get what i mean whos the provider
OK, I see the point ... I have been a little bit lazy with this instructable. I will do an update during the next days. I just have to collect the data for that and do some screen shots ... stay tuned ...
OK. I saw how to power your phone over USB. Where is the SMS alarming part?
how can you do that? please tell me explained pease?
Yes of course ... I don't know a mobile operator that lets someone use his network for free ;-) ... could be another useful project ...
Wow, that's pretty awesomely simple! But do you need the SIM card to make it work?

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