Archive for the 'Truccacci' Category

chan_mobile and Asterisk 1.4.x Thursday, December 6th, 2007

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chan-mobile is an Asterisk channel driver that allows you to use bluetooth devices as FXO or FXS channels.

chan_mobile.c is available in the Asterisk SVN repository and only works with the development version of the PBX software. On the project website there’s a patch that should make this channel work with 1.4.x stable releases of Asterisk but it’s not updated an it doesn’t work anymore.

I wanted to use chan_mobile with the Debian sid package (current version: 1.4.13) so I updated the patch and made it available on my web site:

Hope it helps.

  • english

CLI on Linksys SRW208 Saturday, December 1st, 2007

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The Linksys SRW208 is an affordable 8-port Fast Ethernet switch with VLAN and QoS support.

It’s been designed for use in small businesses or home environments and the typical user doesn’t need to be a networking expert. In fact, the website says: “Simplified, web based user management for more intelligent networking“, i.e. “the web interface won’t let you do lots of useful but complicated things.” In addition, Internet Explorer seems to be a requirement as some IE-specific JavaScript library functions are used by the configuration interface.

A console menu-based interface is also available (via ssh with a 512-bit key), but with fewer options than the web-based one (e.g. you can’t define VLANs). How to improve this situation? Just follow these steps:

  1. Make a ssh connection to the switch.
  2. Authenticate yourself.
  3. Press Ctrl-Z
  4. Type lcli at the prompt, then press Enter.

Et voilà! You now have access to a full-featured Cisco-like CLI, with many more features than the limited set you’re offered by the web and official interfaces.

This seems to be a “bug” in the menu-based interface, so it may well be possible that future revisions won’t allow the user to escape from it.

Thanks to Renzo for this useful trick. :-)

  • english

Giallo nella notte Monday, November 19th, 2007

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I usually don’t write multilingual posts, but as I had to search quite a lot on the Internet for this solution, I think it may be useful to translate this one.

To make the long story short (the italian one is quite long, indeed): How To Make Your HP Color LaserJet 2550 Print Also If It Says That There Is No More Toner:

  1. Turn your printer off.
  2. Push and hold the green button.
  3. Turn the printer on.
  4. Wait about 20 seconds. The 3 lower LEDs (orange, green, green) turn on one by one, then the first two turn off again. The lower green LED stays on.
  5. Without releasing the green button, push the toner carousel rotation button. The 3 lower LEDs turn on.
  6. Wait a couple of seconds, then release the green button.
  7. Start pushing repeatedly, as fast as you can, the red button. The printer LEDs start to blink in sequence, then they settle.
  8. Turn the printer off and on again.
  9. After the boot sequence, if the printer is not in the Ready state, push the red button.

This way, the exausted or nearly exausted toner cartridges will be recognized as “non original replacements” (as you can see on the configuration page you can print by pushing the red and green button at the same time) and you can go on printing. Be warned: if you insist in using a really exausted toner cartridge or drum you’ll end up in a damaged or dirty printer.

Other people got the same result in slightly different ways; this thread is a useful source of additional information.

  • english
  • italian