We currently have about 100 phones on an on premise solution from Interactive Intelligence. The hardware and gateways are aging, and we have access to reliable fast fibre so I'm debating a move to a hosted solution (ie RingCentral) since our polycom phones are all ok there wouldn't be a big cap ex.
So now the next part, LAN infrastructure. We currently have our VoIP on cisco 3560 gigabit switches, with the voice traffic isolated by VLAN. We use a cisco ASA 5520 as our firewall/router. My plan was to use another internet connection (I currently use it as a test line), then using the ASA route the VoIP VLAN traffic out one public internet connection, and keep the data traffic flowing as is on the other public internet connection (to avoid any issues with data traffic impacting call quality). So is that doable is question 1.
Question 2. Since I won't have DNS or DHCP on that VoIP VLAN once i decommission the old servers, can the ASA provide those duties for just that VoIP VLAN?
FYI I don't really need a step by step here rather a confirmation this will work. I have SmartNet so I'll get cisco involved to actually do it.