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Cisco IP Phone 7800 系列使用者指南...連線至網路 6 電話和電腦共用網路連線 6 透過啟用代碼上線連接 6 連線至Expressway 7 變更服務模式 ... CiscoIPPhone7811、7821、7841、及7861提供簡單易用、高度安全的語音通訊。
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