PBX, abbreviated for Private Branch Exchange, jẹ nẹtiwọọki tẹlifoonu aladani eyiti o nṣiṣẹ laarin ile-iṣẹ kanṣoṣo. Gbajumo ni boya nla tabi awọn ẹgbẹ kekere, PBX jẹ eto foonu eyiti o lo laarin agbari tabi iṣowo nipasẹ awọn oṣiṣẹ rẹ ju awọn eniyan miiran lọ, awọn ipe ipa ọna pẹlu ...
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