I hear often that it is hard to practice/demo voice related configurations with GNS3. This is only partially true.
It is correct that GNS3 cannot substitute Multiservice routers like 28xx etc because the DSP resources cannot be emulated. For using T1/E1 or FXS/FXO connections you need the real hardware interfaces and of course another PBX/router interface to connect your T1 to. If you have a double T1 you could use a T1 x-over to let the router do both ends.
For all other configurations like Dial-peers, translation patterns, SIP-UA configurations, CME, ephone registrations, CUBE etc, GNS3 can do the job. Just an example…

[ Read the rest of the story in the original article... ]

It’s only been a week since the Super Gameboy’s boot ROM was dumped by [Costis] and he’s already at it again. This time he’s managed to grab the Gameboy Color’s boot ROM. He found the newer Gameboy Color’s hardware is able to cope with a clock speed up to 100MHz, so the original clock increase trick he used on the Super Gameboy wouldn’t work again.
Instead he discovered a quick disconnection of clock and power before 0xFF50 would make the Gameboy jump to a random area within the ROM. Then it was only a matter of entropy, luck, and…

[ Read the rest of the story in the original article... ]

I want to take a minute to address the over 450 subscribers here at GlobalConfig.net.  Over a year ago when I started blogging I was primarily about my CCIE Studies.  Now that I have passed the CCIE Security I am on to the R&S and Voice, kinda at the same time.  With that, work, and family it’s been difficult to bring you fresh, useful content.  That’s all about to change.
Here are the changes to the blog that I believe will make it a better resource for you:

The Domain Changed to http://www.ascoltablogs.com.  The old URL will still work- but…

[ Read the rest of the story in the original article... ]

In life and embedded systems timing is everything. Give [Frank's] web-based timer calculator a try. Set your system clock resolution (in hertz making sure you account for any system clock divider), select your timer resolution and prescaler, then calculate based on desired ticks, overflows, or real time. He’s built this with the AVR chips in mind but it should be handy for any family of microcontrollers.
Of course none of this is rocket science, but if you’re trying to use one timer for two differently synchronized events this can save you a lot of trial and error time.

[ Read the rest of the story in the original article... ]

[Limor] of Adafruit Industries and the Ice Tube Clock has made her own open source non-lethal weapon: The Bedazzler. After attending a conference by the DHS where she saw the big-budget Dazzler, she decided to make her own. Thirty-six LEDs, six switching FETs, a Boarduino, and a former flashlight later, the Bedazzler makes a better rave toy than a weapon. It doesn’t work as-is, but we figure it will only be a matter of time before someone hacks this to make people… umm hack.  See the video after the break.

[ Read the rest of the story in the original article... ]

[drj113]  posts his cool word clock. After seeing a similar clock on an industrial design website, he set out to make his own version. He made custom pcbs with the toner-etch method. The front is a solid piece of copper clad board and the light shines through the etched areas. It’s powered by a PIC microcontroller and uses approximately 120 ultra bright LEDs. [drj113] has all of the circuit board diagrams, silkscreens, etch negatives, and code on the intructable so you can build your own.

[ Read the rest of the story in the original article... ]

micro Torrent is an efficient and feature rich BitTorrent client for Windows sporting a very small footprint micro Torrent was designed to use as little cpu space and memory as possible while offering all the functionalites expected from advanced clients With BitTorrent you can download files faster and contribute by sharing files and bandwidth Most of the features present in other BitTorrent clients are present in micro Torrent including bandwidth prioritization scheduling RSS auto downloading and Mainline DHT compatible with BitComet Additionally micro Torrent supports the Protocol Encryption joint specification compatible with Azureus 2 4 0 0 and above BitComet…

Protects your PC your browser and your data The more time you spend online the more at risk you are That 39 s why we created ZoneAlarm Extreme Security the strongest and most comprehensive security suite to protect all areas of your online life Includes ZoneAlarm reg ForceField trade browser security ZoneAlarm Extreme Security package includes everything in ZoneAlarm Security Suite and integrates the comprehensive Web security features of ZoneAlarm ForceField which includes anti phishing and drive by download protection as well as Web site security detection a privacy mode for shared computers and more ZoneAlarm Internet Security Suite will…