diff --git a/paludis/package_mask.conf b/paludis/package_mask.conf
index 5b45a4a..428cd0a 100644
--- a/paludis/package_mask.conf
+++ b/paludis/package_mask.conf
@@ -95,3 +95,9 @@ dev-python/pypy:2.0
 
 # workaround
 >net-wireless/wireless-regdb-20130213
+
+
+>=net-voip/linphone-3.8.0
+>=media-libs/mediastreamer-2.11.0
+>=net-libs/ortp-0.24.0
+>=net-libs/belle-sip-1.4.0