An impulse purchase during one of my visits to Hyderabad in December 2005, probably paid a bit more than if I'd got it from abroad, but it's worth while at any cost. I'd been considering a SIP phone for a while since my Quicknet Jack doesn't have working 2.6 kernel compatible drivers.
It's a small square box which plugs into the network and allows for two telephone instruments to be plugged into it. Has a basic IVR based config and an more extensive web-based configuration tool