Has anyone tried using an off the shelf PBX such as the Grandstream GS-UCM6104 on the Mesh? Our Emergency Manager is kind of leery of using a Raspberry PI and Asterisk and was looking for a more plug and play solution. We currently are using the Grandstream GXP-1625 phones and have had success dialing direct IP over a small 2 node network, but as the network increases in size then the IP will change dynamically. So we were looking into a PBX solution and none of us are experienced at all with Linux.
Thanks for the help,
Chris N4TNA