Feature
Wi-Fi, dual-band 2.4 & 5GHz with 802.11 a/b/g/n, WMM, SIP Paging, Multicast Paging, call-waiting with priority override, Multi-language, Speaker with HD acoustic chamber, Features SIP paging, multicast paging, call-waiting with priority override.
Others
Network Interfaces: One 10/100 Mbps port with integrated PoE/PoE+, Protocols/Standards: SIP RFC3261, TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS (A record, SRV, NAPTR), DHCP, PPPoE, SSH, TFTP, NTP, STUN, LLDP-MED, TR-069, 802.1x, TLS, SRTP, IPv6, OpenVPN, Speaker: 8W high-fidelity HD speaker, HD Audio: Yes, HD speaker with support for full-band audio, Voice Codecs and Capabilities: G.711??/a, G.722 (wide-band), G.726-32, iLBC, Opus, G.729A/B in-band and out-of-band DTMF (In audio, RFC2833, SIP INFO), VAD, CNG, AEC, PLC, AJB, AGC, ANS, QoS: Layer 2 QoS (802.1Q, 802.1p) and Layer 3 (ToS, DiffServ, MPLS) QoS, Security: User and administrator level passwords, MD5 and MD5-sess based authentication, 256-bit AES encrypted configuration file, TLS, SRTP, HTTPS, 802.1x media access control, Multi-language: English, French, German, Portuguese, Russian, Simplified Chinese, Spanish, Upgrade/Provisioning: Firmware upgrade via TFTP / HTTP / HTTPS or local HTTP upload, mass provisioning using AES encrypted XML configuration file, Power & Green Energy Efficiency: Integrated PoE 802.3af Class 3, PoE+ 802.3at Class 4.