Hacking the Linksys WIP300

Working on a project, I have been goofing around with a pair of Linksys WIP300 WiFi SIP phones. This is my first hands-on experience with these units, so I thought I would pass along my thoughts. This is a pretty cool piece of gear, first off. It seems to work very well with Asterisk. The large color display is similar to that of a cell phone, and the built-in configuration menus are easy to navigate. The sound is excellent using G.711 codec.  Haven't tried G.729 yet as I don't have a working G.729 on my Mac Mini, which is my Asterisk box, and I haven't tried direct phone-to-phone calling.  With a basic  Soho access point, I was able to walk a few hundred feet away before I had any difficulty hearing my wife on the other end of the call.

The battery cover slips off too easily, and, though the phone provides a web interface, I haven't yet figured out how to modify the pre-set selection of wallpaper images and ring tones. I figured tftp would be supported, but haven't discovered a tftp server setting. And I can't figure out how to actually transfer files to the phone. I portscanned it with nmap but that didn't uncover any open ports. Oddly, the web port didn't even show up. So that's the skinny on the WIP300 so far.

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