WMM vs. Nv2-qos

Hello,

I have a point-to-point wireless link between 2 SXT devices. I need to apply QoS to priorize real-time traffic (VoIP). I read about QoS over the air and I search 2 different methods:

Nv2-qos: http://wiki.mikrotik.com/wiki/Manual:Nv2#QoS_in_Nv2_network

Which one do you recommend? My point-to-point configuration is “bridge” and “station bridge”.

I will really appreciate your help.

Regards.

NV2-QoS is better than WMM