Government will notify spectrum-sharing guidelines in a few days. Speaking on the sidelines of a function in New Delhi, Telecom Secretary Rakesh Garg informed that spectrum-trading rules would be out by the month-end.Spectrum sharing and trading guidelines will allow mobile operators to better utilise the available airwaves and will help in checking the call drop issue.The government on August 12 approved sharing guidelines that provide operators an alternative to share their unused spectrum with other players.Once these guidelines are notified, telecom operators will be able to share their spectrum holding that will help them in decongesting their networks and provide quality phone call services.Spectrum trading is an alternative for operators to acquire more spectrum. In this case, a telecom operator can sell its right to use spectrum to another mobile service provider, which is not allowed under spectrum sharing rules.