ʻO PBX, i hoʻopau ʻia no Private Branch Exchange, he pūnaewele kelepona pilikino e holo nei i loko o kahi hui hoʻokahi. ʻO ka mea kaulana i nā hui nui a liʻiliʻi paha, ʻo PBX ka ʻōnaehana kelepona i hoʻohana ʻia i loko o kahi hui a ʻoihana paha e kāna poʻe limahana ma mua o nā poʻe ʻē aʻe, ke kelepona ʻana i nā kelepona ala me ...
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