I ended my previous article (Linux on the Nokia 770 Internet Tablet ) by saying that the release of the OS 2006 prepared the way for some serious VOIP work. The 770 can now make SIP-based VOIP phone calls and is more like what you'd expect from Nokia--a phone!
What does it take to upgrade the machine, and how difficult is it? As it happens, not much and not very, but when you're at risk of bricking the machine, there's always a certain level of anxiety.
The first step in the upgrade is to visit the Nokia 770 support site for a Windows download or Maemo's 770 download page for Linux and Mac OS X. Download the new OS. You need to provide the machine number of your 770; the download pages provide instructions on how to find it.
The next step is to do it!
Full Story .
Related: Replacing your legacy phone system with Trixbox