The present invention provides methods for modifying whey protein preparations to improve their foaming and other functional properties utilizing limited proteolytic hydrolysis. A user configurable component of the universal femto cell enables a user to configure the universal femto cell to operate on at least one wireless communication network. A data type is identified for the data. Reaction in the presence of rubber is also disclosed. This forces the upper edge of the sealing collar outwardly against the inside diameter of the pipe, thereby creating a seal.