| Feature | Details |
|---|---|
| Model | Yealink SIP-T31 |
| Series | T3 Series |
| Type | Desktop VoIP IP Phone |
| Display | 2.3-inch monochrome LCD display (132x64 pixels) |
| Audio Codecs | G.711, G.729, G.722, Opus, iLBC, AMR, and others |
| Ethernet Ports | 2 x 10/100/1000 Mbps Ethernet ports |
| Number of Accounts | Up to 3 SIP accounts |
| HD Audio | HD voice technology, HD handset, HD speaker, and HD microphone |
| Keys/Softkeys | 4 physical keys, 3 soft keys, and 2 contextual menus |
| Call Features | Call Hold, Mute, Forward, Transfer, 3-way conferencing, etc. |
| Security | TLS, SRTP, HTTPS, SSH, OpenVPN, and more |
| USB Ports | 1 x USB port (for USB headset, Wi-Fi dongle, or USB recording) |
| Wall Mountable | Yes, the phone can be wall-mounted (wall mount kit sold separately) |
| Dimensions (LxWxH) | 187.5 x 174.5 x 144 mm (with stand) |
| Weight | 510g (with stand) |
| Feature | Details |
|---|---|
| Model | Yealink SIP-T31 |
| Series | T3 Series |
| Type | Desktop VoIP IP Phone |
| Display | 2.3-inch monochrome LCD display (132x64 pixels) |
| Audio Codecs | G.711, G.729, G.722, Opus, iLBC, AMR, and others |
| Ethernet Ports | 2 x 10/100/1000 Mbps Ethernet ports |
| Number of Accounts | Up to 3 SIP accounts |
| HD Audio | HD voice technology, HD handset, HD speaker, and HD microphone |
| Keys/Softkeys | 4 physical keys, 3 soft keys, and 2 contextual menus |
| Call Features | Call Hold, Mute, Forward, Transfer, 3-way conferencing, etc. |
| Security | TLS, SRTP, HTTPS, SSH, OpenVPN, and more |
| USB Ports | 1 x USB port (for USB headset, Wi-Fi dongle, or USB recording) |
| Wall Mountable | Yes, the phone can be wall-mounted (wall mount kit sold separately) |
| Dimensions (LxWxH) | 187.5 x 174.5 x 144 mm (with stand) |
| Weight | 510g (with stand) |
