AngryUbuntuNerd [1] filed a orphan request for linphone [2]:
no more updates since 1.5 years and a major version jump 3.x to 4.x missed
[1] https://aur.archlinux.org/account/AngryUbuntuNerd/ [2] https://aur.archlinux.org/pkgbase/linphone/
Request #15741 has been accepted by Muflone [1].
aur-requests@lists.archlinux.org