It's related to what I do for work so what I've done I would not recommend to everyone... It's a FreePBX/Asterisk VM (CentOS 64-bit) that runs on a system in c

It's related to what I do for work so what I've done I would not recommend to everyone... It's a FreePBX/Asterisk VM (CentOS 64-bit) that runs on a system in colocation somewhere at a major traffic exchange point. It is one of a number of VMs that run my personal infrastructure. It has a SIP trunk to a wholesale voip provider, where several DIDs reside. The incoming calls to the DIDs first hit my SIP trunking provider, which sends the incoming call signals to my voip server, which processes the call flow by starting with the IVR announcement I previously described. It is generally the same idea as google voice with call screening but I have approached it from a DIY perspective where I want to have full admin access over everything, except at the SS7/PSTN level where the DIDs are at my SIP trunking provider. Everything related to the incoming and outgoing calls I can customize for other unique purposes.