Specifications Audio: Poly HD Voice; Poly Acoustic Clarity technology provides full duplex conversations, acoustic echo cancellation, and background noise suppression; Poly Acoustic Fence technology eliminates background noise when using a handset or wired headset; Poly NoiseBlockAI technology removes most background noise when using the speakerphone; TIA-920 wideband audio, type 1 compliant (IEEE 1329 full duplex); individual volume settings with visual feedback for each audio path; voice activity detection; comfort noise generation; DTMF tone generation Color: Black Security management: 802.1X Authentication and EAPOL media encryption via SRTP; digest authentication; encrypted configuration files; HTTPS secure provisioning; password login; support for signed software executables; support for URL syntax with password; Transport Layer Security (TLS); SRTP media encryption using AES 256 bits Ports: 1 USB
