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General| Audio Codecs | G.722 (wideband), iLBC, Opus |
|---|---|
| Ethernet Ports | Dual 10/100/1000 Mbps |
| Power over Ethernet (PoE) | Yes (802.3af) |
| Bluetooth | No |
| Protocols | SIP (RFC3261), TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS, DHCP, PPPoE, TFTP, NTP, STUN |
| Headset Jack | Yes |
| Speakerphone | Full-duplex |
| HD Voice | Yes (G.722 wideband) |
| Operating Temperature | 0°C to 40°C |
| Humidity | 10% to 90% non-condensing |
| Lines | 4 |
| SIP Accounts | 4 |
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