| General |
| Status | R4 |
| Product Type | VoIP phone |
| Phone Features |
| Call Services | Call Waiting, Call Forwarding, Call Transfer, Call Hold, Message Waiting Capability |
| Dialer Location | Base |
| Conference Call Capability | 3-way |
| Speakerphone | Yes |
| Programmable Buttons Qty | 6 |
| Additional Functions | Call recording, Intercom |
| IP Telephony |
| Main Features | Multiple VoIP protocol support, integrated Ethernet switch |
| VoIP | Yes |
| VoIP Protocols | SIP, SIP v2 |
| Voice Codecs | G.722, G.723.1, G.729ab, G.711u, G.711a, G.726, iLBC, Opus |
| Lines Supported | 6 lines |
| Quality of Service | IEEE 802.1Q (VLAN), IEEE 802.1p, Type of Service (ToS) |
| IP Address Assignment | DHCP, static |
| Security | EAP-MD5, IEEE 802.1X, TLS |
| Power Over Ethernet (PoE) Support | Yes |
| Network Protocols | IP, TCP, TFTP, UDP, HTTP, DNS, HTTPS, SRTP, TR-069, SNTP |
| Network Ports Qty | 2 x Ethernet 10Base-T/100Base-TX |
| Voice Features | Comfort noise generation (CNG), voice activity detection (VAD), HD Voice, acoustic echo cancellation (AEC), packet loss concealment (PLC), adaptive jitter buffer (AJB), automatic gain control (AGC) |
| Network Features | Network Address Translation (NAT), Class 2 PoE, Lightweight Directory Access Protocol (LDAP) |
| Phone Memory |
| Phone Directory Capacity | 1000 names & numbers |
| Display |
| Type | LCD display - monochrome |
| Display Location | Base |
| Diagonal Size | 2.7" |
| Display Resolution | 192 x 64 pixels |
| Backlit | Yes |
| Miscellaneous |
| Connections | Headset jack / RJ-9 Electronic hook switch (EHS) / RJ-12 Handset jack / RJ-9 |
| Hearing Aid Compatible | Yes |
| Placing / Mounting | Wall-mountable, table-top |
| Included Accessories | Stand |
| Dimensions & Weight (Base) |
| Width | 21.2 cm |
| Depth | 18.9 cm |
| Height | 17.5 cm |
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