An In-Building Cellular Enhancement System, commonly implemented in conjunction with a distributed antenna system (DAS), is a telecommunications solution which is used to extend and distribute the cellular signal of a given mobile network operators within a building. Below ground level, large buildings and high rises are examples where mobile phones are unable to properly reach the carrier’s macro or outdoor network. In these environments, the in-building cellular enhancement system will connect to the carrier’s signal source which is typically a bi-directional amplifier or a base transceiver station . This signal source transmits (and receives) the mobile network operator’s licensed radio frequency. This frequency is then transported within the building using coaxial cable, optical fiber or Category 5e/Category 6 twisted pair cable. In-building coverage antennas are strategically placed to provide the best overall coverage for users.