Attributes from RFC 5780 NAT Behavior Discovery
Attributes from RFC 5766 TURN.
Attributes from RFC 6062 TURN Extensions for TCP Allocations.
Attributes from comprehension-required range (0x0000-0x7FFF).
Attributes from RFC 8489 STUN.
Attributes from An Origin Attribute for the STUN Protocol.
Attributes from RFC 5245 ICE.
Attributes from RFC 6156 TURN IPv6.
Attributes from comprehension-optional range (0x8000-0xFFFF).
Attributes from RFC 3489, removed by RFC 5389,
but still used by RFC5389-implementing software like Vovida.org, reTURNServer, etc.