baresip : Baresip is a portable and modular SIP User-Agent ( https://github.com/baresip/baresip )
linphone-desktop : Open source softphone for voice and video over IP calling and instant messaging. ( https://www.linphone.org/en/homepage-linphone )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a zGentoo
For Paludis use this rsync : rsync://gentoo.zugaina.org/zGentoo-portage
If you have a problem : ycarus(-at-)zugaina.org