VOIP with TOS=5 on inbound traffic
I trying to work out some occasional choppy inbound audio with voip in an asterisk system. My network is 2 vlans. One for data one for voice. The one and only switch in the network, a swr224g4p, seems to be doing a good job at prioritizing voip traffic out to the router which is currently a ddwrt linksys. I have pfsense 2.0 beta livecd on a old pc as a test to replace the linksys with pfsense. I needed 2.0 to have traffic shaping functionally for multiple vlans.
I am now questioning my approach. The ISP is the SIP provider. My location is on a point to point T1 to them with only 2 hops to the PSTN interconnect. They are telling me that they mark all voip traffic coming to me with TOS=5. How does this effect the traffic shaper?
Should I be taking a different approach. All of my pfsense use thus far is for multi-wan. No real traffic shaper experience. Everything I 've seen says I don't want TOS set. But does that apply with the end to end control of the T1?
It won't matter in this case. ToS is useful for prioritizing traffic before putting it onto a slower link. It is not very likely that the T1 is actually faster than your LAN setup, so I can't see this making any difference whatsoever.