What is Voice over Internet Protocol (VoIP)? Is a family of transmission technologies for delivery of voice communications over IP networks such as the Internet or other packet-switched networks.

Cisco Unified IP Phone 9971

Two-way video calling between two Cisco unified 9971 IP phones. Highlights include high-resolution color touchscreen display, High-definition voice, desktop Wi-Fi connectivity, Gigabit Ethernet, Bluetooth, and Video Camera all in a new fresh ergonomi...

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