@nepi Oh! That's actually a super cool idea. I've wondered how to stay in contact with the main house while out in the shop. Yeah I forgot about SIP. Hmmm. If you sort this please let me know :)
@janusfox Oh no now you’re tempting me.. Tailscale would probably make this super easy, you don’t even have to route it over the internet at that point. The hardest part would probably be getting Cisco call manager set up.