Yealink T31G IP Phone
PRODUCT DESCRIPTION
Yealink T31G IP Phone (1301044) - 2 Years Local Warranty
Yealink SIP-T31G Gigabit Entry Business IP Phone
The Yealink SIP-T31G is the Gigabit version of Yealink’s dependable entry desk phone — the same clean 2-line calling experience with dual Gigabit Ethernet ports, so the connected workstation keeps full network speed. A 2.3-inch 132x64-pixel backlit graphical LCD, two line keys with LED and two memory keys cover everyday calling simply.
Full Speed to the Desk, One Cable
With IEEE 802.3af PoE (Class 1) and dual Gigabit ports, the T31G deploys with one cable while passing GbE through to the PC. The full-duplex hands-free speakerphone with AEC, Smart Noise Filtering and Opus/G.722 wideband audio keep every call clear.
Simple for Users, Simple for IT
A 1000-entry local phonebook, RJ9 headset port with EHS support, XML browser and auto-provisioning via FTP/TFTP/HTTP/HTTPS make the T31G easy to live with and easy to roll out across Singapore offices on Gigabit networks.
Yealink SIP-T31G Datasheet — Technical Specifications
General
| Model | Yealink SIP-T31G |
| Part Number | 1301044 |
| Product Type | 2-line Gigabit SIP desk phone |
| Warranty | 2 Years Local Warranty (Singapore) |
Display & Keys
| Display | 2.3" graphical LCD, 132 x 64 pixels, with backlight |
| SIP accounts | Up to 2 |
| Line keys | 2 line keys with LED |
| Memory keys | 2 memory keys |
| Feature keys | 6 feature keys (transfer, message, headset, redial, mute, hands-free); 5 navigation keys |
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 |
| Network features | VLAN (802.1p/Q, LLDP/CDP/DHCP), QoS (Layer 3 ToS DSCP), 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: 3–4 W |
Design & Features
| Dimensions (W x D x H x T) | 188 x 189 x 162 x 50 mm |
| Mounting | Desk stand with 2 adjustable angles; wall mountable |
| Colour | Classic Grey |
| Phonebook | Local phonebook up to 1000 entries |
| Provisioning | Auto-provisioning (FTP/TFTP/HTTP/HTTPS), PnP; XML browser |
Compatibility & Software Support
The SIP-T31G 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, PnP
- Security: 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-T31G 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-T31G
What is the difference between the Yealink T31G and T31P?
The T31G has dual Gigabit Ethernet ports; the T31P has 10/100 Mbps ports. Everything else — display, 2 lines, HD voice, PoE — is the same. On Gigabit office networks where the PC connects through the phone, the T31G is the right pick.
Does the T31G need a power adapter?
Not on a PoE switch — it is IEEE 802.3af Class 1 and draws only 3–4 W over PoE. The optional Yealink 5 V / 0.6 A adapter covers non-PoE deployments.
Can I use a wireless headset with the T31G?
Yes. The RJ9 headset port supports EHS wireless headsets via the EHS35 adapter, and Yealink YHS34/YHS36 QD-to-RJ wired headsets connect directly.
Is the T31G a colour-screen phone?
No — it uses a crisp 2.3" backlit greyscale LCD. For a colour screen and 4 lines at a similar budget, see the SIP-T33G.
What if my desk has no network point at all?
Choose the SIP-T31W instead — same 2-line experience with built-in dual-band Wi-Fi, so it works anywhere with wireless coverage.
Does the SIP-T31G come with a warranty in Singapore?
Yes. Every SIP-T31G sold by SourceIT comes with 2 years local Singapore warranty and a GST invoice.
