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An Internet Protocol (IP) phone, also known as a VoIP phone (Voice over IP) uses technologies for placing and transmitting telephone calls over an IP network, such as the Internet, instead of the traditional public switched telephone network (PSTN).

AudioCodes C448HD, IP电话, 黑色, 有线手持话机, SIP信息, 8 行数, 按钮

AudioCodes C448HD. 产品类型: IP电话, 产品色彩: 黑色, 手机类型: 有线手持话机. 双音多频模式: SIP信息. 打印行列数: 8 行数. 音量控制: 按钮. 显示器: 薄膜场效应晶体管（TFT）, 显示器尺寸（对角长）: 12.7 cm (5"), 显示器分辨率: 1280 x 720 像素

C448HD

AudioCodes C448HD 网络电话 黑色 8 行数 薄膜场效应晶体管（TFT）

AudioCodes C448HD 网络电话 黑色 8 行数 薄膜场效应晶体管（TFT）

AudioCodes C448HD 网络电话黑色 8 行数薄膜场效应晶体管（TFT）