Yealink SIP-T33G Classic Business IP Phone
PRODUCT DESCRIPTION
Yealink SIP-T33G Classic Business IP Phone (1301046) - 2 Years Local Warranty
Yealink SIP-T33G Colour-Screen Business IP Phone
The Yealink SIP-T33G brings a colour screen to cost-effective business calling: a 2.4-inch 320x240 colour display with backlight, four SIP accounts with four LED line keys, and up to 12 paperless DSS keys across a 4-page view — more capability than entry phones at a still-accessible price.
Gigabit and PoE Ready
Dual Gigabit Ethernet ports pass full network speed to the desk PC, IEEE 802.3af PoE (Class 1) keeps deployment to one cable, and Yealink HD voice with a full-duplex speakerphone, AEC and Smart Noise Filtering keeps every call clear.
Secure and Manageable
TLS 1.3, SRTP, OpenVPN and IEEE 802.1X protect calls and provisioning, while auto-provisioning via FTP/TFTP/HTTP/HTTPS, a 1000-entry phonebook, local 5-way conferencing, wallpaper/screensaver support and an XML browser round out a very complete package for Singapore SMEs.
Yealink SIP-T33G Datasheet — Technical Specifications
General
| Model | Yealink SIP-T33G |
| Part Number | 1301046 |
| Product Type | 4-line colour-screen Gigabit SIP desk phone |
| Warranty | 2 Years Local Warranty (Singapore) |
Display & Keys
| Display | 2.4" colour LCD, 320 x 240 pixels, 16-bit colour, with backlight |
| SIP accounts | Up to 4 |
| Line keys | 4 line keys with LED |
| Programmable keys | Up to 12 paperless DSS keys (4-page view) |
| Feature keys | 5 feature keys (message, headset, redial, mute, hands-free) |
Audio
| HD voice | Yealink HD voice — HD handset, HD speaker; Smart Noise Filtering |
| Speakerphone | Full-duplex hands-free speakerphone with AEC |
| Wideband codecs | Opus, G.722 |
| Narrowband codecs | G.711 (A/µ), G.723.1, G.729/A/B/AB, G.726, iLBC |
| Headset port | 1 x RJ9 (4P4C); EHS wireless headset support (EHS35) |
Connectivity
| Ethernet | Dual-port Gigabit Ethernet (2 x RJ45) |
| PoE | IEEE 802.3af, Class 1 |
| Security & network | VLAN (802.1p/Q, LLDP/CDP/DHCP), QoS (Layer 3 ToS DSCP), TLS 1.3, SRTP, OpenVPN, L2TP VPN, IEEE 802.1X, IPv6 |
Power
| Power adapter | AC 100–240 V input, DC 5 V / 0.6 A output (optional) |
| Consumption | PSU: 2–3 W; PoE: 3.5–5 W |
Design & Features
| Dimensions (W x D x H x T) | 212 x 186 x 146 x 42 mm |
| Mounting | Desk stand with 2 adjustable angles; wall mountable |
| Phonebook | Local phonebook up to 1000 entries |
| Conferencing | Local 5-way conferencing |
| UI extras | Wallpaper and screensaver support; XML browser |
| Provisioning | Auto-provisioning (FTP/TFTP/HTTP/HTTPS) |
Compatibility & Software Support
The SIP-T33G is an open-SIP business IP phone. It registers with SIP-compatible IP-PBX and hosted voice platforms — check compatibility with your PBX or hosted-voice provider, or ask the SourceIT team for advice on platforms commonly deployed in Singapore.
- Mass deployment: auto-provisioning via FTP / TFTP / HTTP / HTTPS
- Security: TLS 1.3, SRTP, OpenVPN, L2TP VPN, IEEE 802.1X
- Networking: VLAN (802.1p/Q), Layer 3 ToS DSCP QoS, IPv6
- Headsets: RJ9 headset port with EHS wireless-headset support (EHS35)
Package Contents & T3 Series Ordering Information
In the box:
- IP phone
- Handset with handset cord
- Ethernet cable (1.5 m CAT5E UTP)
- Stand
- Quick Start Guide
- Power adapter (optional — PoE powered by default)
The SIP-T33G sits in Yealink’s classic T3 series. All T3 models below are available from SourceIT:
| Model | Part No. — Key difference |
| Yealink SIP-T31W | 1301039 — 2 lines, built-in dual-band Wi-Fi, 10/100 Ethernet |
| Yealink SIP-T31P | 1301043 — 2 lines, 10/100 Ethernet, PoE |
| Yealink SIP-T31G | 1301044 — 2 lines, dual Gigabit Ethernet, PoE |
| Yealink SIP-T33G | 1301046 — 4 lines, 2.4" colour screen, dual Gigabit Ethernet |
| Yealink SIP-T34W | 1301037 — 4 lines, colour screen, dual-band Wi-Fi, Gigabit, USB |
Datasheet & Downloads
Frequently Asked Questions — Yealink SIP-T33G
What is the difference between the Yealink T33G and T31G?
The T33G steps up to a 2.4" colour screen, 4 SIP accounts and 12 programmable DSS keys; the T31G is a simpler 2-line phone with a greyscale display. Both have dual Gigabit Ethernet and PoE.
Does the T33G have Wi-Fi?
No — the T33G is wired-only per the official datasheet. If you need Wi-Fi with a colour screen, choose the SIP-T34W.
Does the T33G need a power adapter?
Not on an IEEE 802.3af PoE switch (Class 1, 3.5–5 W). The optional Yealink 5 V / 0.6 A adapter covers non-PoE desks.
Can I use a wireless headset with the T33G?
Yes — the RJ9 headset port supports EHS wireless headsets via the EHS35 adapter, and YHS34/YHS36 QD-to-RJ wired headsets connect directly.
How many programmable keys does the T33G offer?
Its 4 line keys can be programmed with up to 12 paperless DSS keys across a 4-page view — enough for speed dials and features on a busy SME desk.
Does the SIP-T33G come with a warranty in Singapore?
Yes. Every SIP-T33G sold by SourceIT comes with 2 years local Singapore warranty and a GST invoice.
