Thanks for the replies.
It's actually IP QoS or even port QoS I'd like. I'm in NZ and my isp doesn't implement any Qos at their end. I'd mostly like to be able to put the static IP of the ATA adapter (I'm using a PAP2T) ahead of all other traffic, then maybe prioritize other things like html next and so on.
As it is now, downloading a file can kill my phone. It could be a bit hard to slam the breaks on our wireless laptops in different rooms when the phone rings.
I like the way the Dynalink rta1025w / Netcomm NB6Plus4W does this but I don't really want to change routers as this one has given me such good service in all other regards.
I think I'm hoping a miracle will occur and someone will make a firmware with this feature.
I'm kind of debating whether to put up with it or buy one of the ones I mentioned and keep this one as a backup or even sell it to recoup some money.