In Building Solutions (IBS) are telecom networks solution comprising of a distributed antenna system (DAS) enhancing coverage and capacity inside the buildings with weak or no telecom signal. It also increases telecom operator’s revenue, Quality of Experience, and customer retention. Good in-building coverage is provided by Distributed Antenna System. This solution not only provides good coverage and capacity inside the building but also reduces load on the outdoor cell site. These solutions are based on Distributed Antenna Systems (DAS) Fiber Optic Distribution Antenna Systems (FODS) or Pico BTS. Telecom operators will achieve significant reduction in CapEx spending related to IBS, utilize its large IBS footprint to generate revenue from others, eliminate cross billing and reduce OpEx.