West coast collos - ones that are VoIP friendly

Hi there,

I am not familiar with the west coast collocation facilities that are VoIP
friendly (either by QoS or good upstreams/peering).
Something in the Los Angeles area; been looking at IX2 on Wilshire.

Right now looking to collocate a few boxes, switch and a router...

Any recommendations? Quality over cost, at this moment. Thanks,