Hey all, So my office is going from digital phones to VoIP due to some changes in our ISP subscription. We've gotten quotes from two companies, both in the $20k+ range for a 17-line system. I recognize there are cheaper ways to do this, but that's not my instructions here. My instructions are merely to evaluate if it is possible and/or cheaper to install the same components ourselves (ignoring whether or not the third-party will support if we do that). We've currently got a Linksys EA4500 (or something like that) and a 24-port 10/100 switch feeding the data network. The digital phones are wired on a separate block with RJ11. The plan would be to do an Avaya IP Office setup (IP500 v2 controller with a combo card) and a 24-port POE gig switch to run data and voice. What I'm less certain about, having not set up a VoIP system before, is the layout of the cabling. Please let me know if I'm thinking of this right ISP -> Modem -> Router -> VoIP -> Switch -> POE phones That would put the router to be the DHCP server and then the VoIP into the switch Alternatively... ISP -> Modem -> Router -> Switch -> VoIP ||| Switch -> POE phones This would go from the Router to the Switch, just in case there's some weird routing that would occur in the VoIP controller that might make the switch angry I'm really not sure if either of these options really make a difference, but I figured I'd check. Both sales guys spec'd out layer-3 POE gig switches (one Avaya, the other an HP ProCurve) and said the systems needed to use VLANs. I suppose this might be true, but then again they could just be BS'ing me where a typical unmanaged layer-2 might work fine just fine for VoIP. Again, hoping someone can steer me in the right direction. Thanks in advance!