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The ZIP 2×2 : delivers a cost effective fully featured SIP phone. It offers two LAN ports, two call appearances, a backlit graphical LCD, three-way conferencing, full-duplex speakerphone, encryption, power over Ethernet (PoE) deployment, multi-language menus, custom ring tones, multiple user login, built-in Quality of Service (QoS), DND, call forwarding, mute, and redial.
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