Long story short, my business bought a commercial building and we’re moving our company there. It’s out of town, fibre optic isn’t available, and the previous owners said VoIP is horrible through the available internet.

My question is, what are my options? I’m in Canada, is there a service provider over 4G/LTE where there’s a hub for SIM, and I can still keep my extensions? Or do I have to switch back to traditional landline?