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Answer Posted / vinodh kumar kandapillai
BOI is nothing Base Operations & Interface Unit which is a
master card of Nokia Ultra Site BTS. Its main function is to
process the Base band signals from BB2F and to interface the
processed signal with Transmission cards such as RRI, E1/T1,
etc., and vice versa. This is its main function and it has
too many functions which cannot be discussed here..
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