Apartments, Condos, and multi-story buildings?
The network was designed to provide indoor coverage up to the second floor for a large part of the City. It is important to point out that while the network was designed to cover up to the second floor, in fact, the limit of how high the WiFi signal travels is basically governed by physics and where the WiFi equipment is mounted throughout the City. There may be places where the signal may be received higher than the second floor.
