| Audio |
| Voice codecs | G.711a, G.711u, G.723.1, G.726, G.729, G.729A, G.729B, G.729ab |
| Speakerphone | |
| Microphone mute | |
| Design |
| Product type | IP Phone |
| Handset type | Wired & Wireless handset |
| Product colour | Black |
| Mounting | Desk |
| Backlight keypad | |
| Display |
| Display | LCD |
| Display diagonal | 7.11 cm (2.8") |
| Display resolution | 320 x 240 pixels |
| Management features |
| Management platform | Yealink Device Management Platform |
| Network |
| Ethernet LAN interface type | Gigabit Ethernet |
| Ethernet LAN data rates | 10,100,1000 Mbit/s |
| Security algorithms | WPA2, WPA3 |
| Ethernet LAN | |
| Quality of Service (QoS) support | |
| Syslog | |
| Operational conditions |
| Operating temperature (T-T) | 10 - 45 °C |
| Operating relative humidity (H-H) | 5 - 95% |
| Storage temperature (T-T) | -10 - 70 °C |
| Packaging content |
| Number of handles included | 1 pc(s) |
| Mounting kit | |
| Ethernet cable | |
| Handset | |
| Quick start guide | |
| Phone features |
| Phonebook capacity | 1000 entries |
| Number of VoIP accounts | 12 |
| Answering machine | |
| Call waiting | |
| Speed dialling | |
| Intercom | |
| Call hold | |
| Call forwarding | |
| Conference call | |
| Redialing | |
| Caller ID | |
| Phonebook sharing | |
| Call return | |
| Message-waiting indicator (MWI) | |
| Call history | |
| Emergency call | |
| Ports & interfaces |
| Headset connectivity | RJ-9 |
| USB 2.0 ports quantity | 1 |
| Ethernet LAN (RJ-45) ports | 2 |
| RJ-9 ports quantity | 2 |
| DC-in jack | |
| Power |
| AC adapter input voltage | 100 - 240 V |
| AC adapter output voltage | 5 V |
| AC adapter output current | 2 A |
| Power over Ethernet (PoE) | |
| Weight & dimensions |
| Width | 209 mm |
| Depth | 167.5 mm |
| Height | 214.8 mm |
| Package width | 231 mm |
| Package depth | 237 mm |
| Package height | 102 mm |