Software :: Netbook As A Dedicated Phone (with Wi-Fi Or Ethernet)

I really like to have my netbook be like a Cisco SPA502G, Cisco SPA525G, or any kind of business phone that's available. The current phone system I have is Asterisk.One of the advantage of having my netbook is that it has a battery and most desktop IP phones do not have one.

So, aren't there any Linux distros that act primarily as a "phone first; everything last?" (By "everything last," I meant anything like surfing the Internet, listen to music, etc." It's like having an advanced version of an SPA525G or a top-of-the-line Snom/Polycom business phone. I know this is way too much to ask about making my netbook act as a dedicated business phone, since I'll only be using one line per device. Like I mentioned, it's nice to be able to take my netbook with me whenever I go where there are wireless networks available, such as in college or a restaurant. Of course, I'll probably not expect to get a lot of features from Cisco SPA502G in a softphone. I can understand why anyone cannot imagine why I'd want to have so many features from SIP-based business phones, like intercom and G.722 codec ("high-definition voice," or "HD Voice"). Well, I'm a hobbyist; sometimes I like to put some of the features to use, like an intercom.

I used to try out Ekiga (supports G.722) and Twinkle (does not support G.722 as far as I've read), but I'd like to have something that integrates into the desktop environment--no, not the little icon that sits in a GNOME panel, but maybe a softphone that is docked to the right of the desktop with a resolution of 1024x600. This is something that is very useful to keep the softphone integrated into the panel while not overlapping with other non-softphone applications, such as Firefox or OpenOffice. Plus, the panel-based softphone can stay visible regardless of which application has focus, even if I maximize an application.