On Mon, 25 Sep 2017 14:19:43 -0400 Bill Strosberg <oclug [ at ] strosberg [ dot ] com> wrote: > I'm no telephony expert by any chance but I would think a Pi might > not have enough horsepower to handle things - I run things on a quad > core A7 box with a couple different VMs under VirtualBox. Everything > here just runs without complaint. I would be interested in knowing a definitive answer to this. The RPi-3 is a quad-core ARM at 1.2GHz, which I don't think is much worse than my first Asterisk box. If the VoIP part is only over a LAN and you can use ulaw encoding, then there's almost no CPU overhead to do the codecs and it might just work. This web site: http://www.raspberry-asterisk.org/faq/#performance says: "In a typical setup with RasPBX, 10 concurrent calls are possible on a Pi 1. This is also the case for conferences, meaning 10 participants can join a conference. More than 10 calls do work, but audio quality decreases considerably with every additional call." and I'm sure the Pi 3 is way better than a Pi 1. Regards, Dianne.