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Alessandro Carminati
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RS-485 Anti-theft system commands
Some of you may have read on of my previous post, where I tried interpret the keypad print command. If you did, well some of the interpretations I wrote on it were wrong. This post is the second attempt to interpretate the dialogue exchanged between main bo...

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Keypad print string command
This is the first of a series of posts, where I'll try examine the list of commands I logged from a dialogue between the keypad and the mainboard. Here the first: Print on display A stream starting with the byte 0x13 seems to have the means of "print comman...

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Anti-theft system keypad
In this post I want to log my experience in reverse engineer the protocol used in ROKONET and possibly other manufacturers' anti-theft system peripherals. Somewhere in the past I bought an anti-theft system for my home, but because I'm a systems nerd, I cho...

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Cisco 3500 XL fan subsystem failure.
It is quite old, yet still useful. I'm talking about an old Cisco 3500 XL series switch, I use every day in the lab of the company I work to. I don't want to talk about all the good points this switch has, but rather I'd like to talk about a failure it had,...

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Fiat Panda windscreen wiper timer
My Panda, after almost 16 years of service, begins to show its years. This time, the front  wiper do not work properly. You may read almost evreywhere, Google is your friend.... About this matter, it seems nobody ever went deeper, and to my issue, which see...

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Fiat Panda windscreen wiper timer
My Panda, after almost 16 years of service, begins to show its years. This time, the front  wiper do not work properly. You may read almost evreywhere, Google is your friend.... About this matter, it seems nobody ever went deeper, and to my issue, which see...

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JabberSend crashes your system if it has no connection with the XMPP server.
JabberSend is quite a useful function. It lets you send xmpp instant messages, and it can be used for various things such as alert you when a call hits your voice mail or also that someone is calling you. Here an example dial plan. [outside_line] exten =>  ...

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Access your PBX using voice channels

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Access your PBX using voice channels
As VoIP PBX administrators we often have to deal with not so cooperative network administrators. The IP PBXs depend from the underlying network infrastructure, as for their normal behaviour, as for their access remotely and not rarely happen to have to deal...

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Google Talk ends its services, now what?
Due to the decision Google made to turn off its xmpp service talk, I've been forced to migrate another xmpp service. I thought it would be an easy task, just put new data into xmpp.conf and it's done. But it didn't go that way. As soon as I run the new conf...
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