LTE-U would allow for LTE in unlicensed spectrum. Do any current devices support these bands? I would very much enjoy serving unlicensed LTE around my home. I wonder how much effort it would take to provide VoLTE over a SIP backend.
It's not for around your home but as competition for things like the Cambium PMP450 platform and Ubiquiti's Rocket 5AC gen2 AP radios.