It would be very nice if we could have a simple rfc2544 reflector inside version 5.0 final.
This is mandatory to make serious VoIP SLA to / from client sites (service level agreement) and check QOS when using shared data / voip links.
Btest server is not usefull for this as it is not compatible with RFC2544 hardware testers.
This should be doable quite easily with scapy ( https://www.secdev.org/projects/scapy/ ) or similar packet manipulation programs.
But perhaps it’s even simpler and lower memory footprint, to program a home made packet reflector deamon, this can be as small as hundred lines of C code.