Using u-law:
I tried Use rport >TCP transport
I tried Force RFC-3264 > Use default STUN
Still "Connection Established" but no incoming sound (and perhaps no outgoing)
Should I be entering info under STUN options?
P.S. Everything works fine when using VyprVPN; but not with F-Secure Freedome VPN
Later - I found the Enable STUN under Advanced > Network.
No sound when enabled
No sound when disabled.
All other settings are the default