Only thing on those PFSense does have QOS on. Yes on assumption but weirdly enough incoming SIP calls are set to 729 outgoing is all that's set to 711, but its on both direction of calls and trust me bandwidth is not an issue. Jumbo packets on the switch are currently turned off. I really think compatibility is the issue or some very simple setting or thing in NEC or with NEC is the issue. Also a week before we were using netgear unmanaged switches same issues.
