Built-in Internet Call, OS2007HE, SIP/Gizmo
 

I have OS2007HE on my N770. I can use the Gizmo5 client and it works great. What I'd like to do is set up the built-in Internet Call client to handle SIP/Gizmo5 calls. I've seen docs on how to get this working in OS2008+, but the OS2007HE Internet Call client lacks the necessary parameters for SIP.

1. Is there a way for me to get Internet Call from OS2008+ and install it onto my N770 with OS2007HE? (Since it comes pre-installed, there's no package for it?)

2. If option 1 isn't viable, who would most likely be able to make a build for it? Developers here, assuming Internet Call is open source, or Nokia?

Thanks!