best way to prioitise voip traffic with QOS on a netgear DGND3300

[slpeg]

Ive got a netgear DGND3300 modem router  for my network. Im running SIP VOIP phones on the network which are having issues, mainly, issues with SIP ALG (simple to solve.. just disable SIP ALG) and the other issue is delayed and dropped packets. 

My voip supplier suggested the solution would be to set priority / Qos rules for the voip traffic which ive looked in the router admin as to how to do and found several options : 

- via mac address

- via LAN port

- via 'applications'.. this one has me the most confused as im not sure which option to select (see attached screenshot.. any ideas as there are multiple versions of voip)

Which would be the best way to prioites the traffic out of any of the above ? 

Also what would be the best priority level ? Higest, High, Normal or Low ? .. I still want other traffic to pass, but just the voip to be prioritised

 

[DarrenM]

Hello Slpeg

I would leave it on normal unless you are seeing issues.

DarrenM