| Attribute | Details |
|---|---|
| Model | Yealink SIP-T33G |
| Display | 2.4” color LCD with backlight, 320 x 240 pixels |
| SIP Accounts | Up to 4 |
| Audio | Yealink HD Voice (HD handset and HD speaker), Opus codec support |
| Lines | 4 VoIP lines |
| Conference | Local 5-way conferencing |
| Ethernet Ports | Dual Gigabit Ethernet ports |
| Power Over Ethernet (PoE) | Yes, IEEE 802.3af Class 2 |
| Feature Keys | 4 line keys with LED, 5 function keys (message, headset, redial, mute, speakerphone), 6 navigation keys |
| Phonebook | Local phonebook up to 1000 entries, blacklist, XML/LDAP remote phonebook |
| Call Features | BLF, call transfer, call hold, call forward, call pickup, call park, call recording, voicemail |
| Security | TLS 1.3, SRTP, HTTPS, AES encryption, OpenVPN, IEEE 802.1X, L2TP VPN |
| Dimensions (W x D x H) | 212 mm x 186 mm x 146 mm |
| Weight | Approx. 0.9 kg |
| Additional Features | EHS wireless headset support, multi-language user interface, wall mountable, adjustable stand |