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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).

Yealink SIP-T28P, IP電話, 黑色, 有線話機, LCD, 320 x 160 像素, G.711, G.722, G.723.1, G.726

Yealink SIP-T28P. 產品類型: IP電話, 產品色彩: 黑色, 手持裝置類型: 有線話機. 顯示器: LCD, 顯示器解析度: 320 x 160 像素. 語音編解碼器: G.711, G.722, G.723.1, G.726. 支援加密演算法: HTTPS, SSL/TLS. 符合業界標準: IEEE 802.3af

SIP-T28P

Yealink SIP-T28P 網路電話 黑色 LCD

Yealink SIP-T28P 網路電話 黑色 LCD

Yealink SIP-T28P 網路電話黑色 LCD