An electrician can install a WiFi router which can be hard-wired using Ethernet cable to the communications room (or they can install a sim enabled router where signal is available). Plugzio WiFi units are less expensive than other models - in quantity, the price savings will exceed the cost of an additional router and network (if existing reliable network isn't available). The installed WiFi router can later be used to enable communication for other chargers and/or vehicles in the garage, so its never a sunk cost.

You can also install a cell booster at your garage level. On average it costs around $1,000 to max of $5,000 to install a cell booster. This way, not only will phones have signal (especially important in case of emergency), but also Plugzio Cellular models will work with ease. Please let us know if your garage has an existing cell booster so we can help ascertain the Plugzio Cellular model that will work with it (not all boosters support LTE-m).