Come to find these features to be a must, and neither function properly.
Workaround for SIP was to disable QoS completely, allowing it to work, but the packets are still being dropped so quality is an issue.
VPN pass-through does not function at all when servers use a static IP, it works fine when given a DHCP reservation though. An OpenVPN server works only for a minute, then sends the router into a endless reboot cycle, requiring reset defaults.
Shareport has not worked at all for printer share since version 1.01 firmware, lets get this fixed please.