Recommend a voip wirless router

I have decied to buy a broadband router with builtin phone adaptor.Can someone recommend me a good voip router.I am currently using dlink wirless router (di-624 without voip).But its wireless performance is not good.And it drops the connection frequently and restarts itself.
Now i am inclined towards linksys and intend to buy wrp400 .Its a new router from linksys with 2 phone ports.
I wants to know the wirless performance of linksys products in general.But if somone have any experience with this router then please let me know its performance.

Have a look at the Billion series. I use Bipac 7402VGP which performs well. It has been superceded by Bipac 7404VGP. Not the cheapest but reports suggest it performs well abnd it seems to cope well with a long line to the exchange.