Yealink SIP-T31P Entry-Level IP Phone
PRODUCT DESCRIPTION
Yealink SIP-T31P Classic Entry-Level Business IP Phone (SIP-T31P) - 1 Year Local Warranty
Dependable Entry-Level Business Calling
The Yealink SIP-T31P is a dependable entry-level SIP desk phone that brings Yealink HD Voice to every desk at minimal cost. Its 2.3-inch 132 x 64-pixel backlit graphical LCD and two SIP accounts with LED line keys cover everyday business calling cleanly and simply.
One-Cable PoE Deployment
With IEEE 802.3af PoE (Class 1) and two 10/100 Ethernet ports, the T31P deploys with a single cable and shares the desk’s network drop with a PC. The full-duplex hands-free speakerphone with AEC, Smart Noise Filtering, RJ9 headset port with EHS wireless headset support and Opus/G.722 wideband audio keep calls clear.
Built for Fleet Rollouts
Auto-provisioning with PnP, a 1000-entry local phonebook, local 5-way conferencing and an XML browser make the T31P easy to manage at scale — a favourite for offices, retail counters and warehouses standardising on affordable PoE calling.
Yealink SIP-T31P Datasheet — Technical Specifications
General
| Model | Yealink SIP-T31P |
| Part Number | 1301043 |
| Product Type | 2-line entry-level SIP desk phone |
| Warranty | 1 Year Local Warranty (Singapore) |
Display & Keys
| Display | 2.3" 132 x 64-pixel graphical LCD with backlight |
| SIP accounts | Up to 2 |
| Line keys | 2 line keys with LED |
| Feature keys | 6 feature keys (transfer, message, headset, redial, mute, hands-free speakerphone); 5 navigation keys |
Audio
| HD voice | Yealink HD Voice; Smart Noise Filtering |
| Speakerphone | Full-duplex hands-free speakerphone with AEC |
| Wideband codecs | Opus, G.722 |
| Narrowband codecs | PCMU (G.711μ), PCMA (G.711A), G.723.1, G.729, G.729A, G.729B, G.729AB, G.726, iLBC |
| Headset port | 1 x RJ9 (4P4C); EHS wireless headset support |
Connectivity
| Ethernet | 2 x RJ45 10/100M Ethernet ports |
| PoE | IEEE 802.3af, Class 1 |
| Security | TLS 1.3, SRTP for voice, OpenVPN, IEEE 802.1X, L2TP VPN |
| Network | VLAN, LLDP/CDP, QoS 802.1p/Q tagging, 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 |
| Operating conditions | -10 to +45°C; 10–95% humidity |
| Phonebook | Local phonebook up to 1000 entries |
| Conferencing | Local 5-way conferencing |
| Provisioning | Auto-provision with PnP; XML browser, action URL/URI |
Compatibility & Software Support
The SIP-T31P 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.
- Mass deployment: auto-provision with PnP
- Security: TLS 1.3, SRTP, OpenVPN, L2TP VPN, IEEE 802.1X
- Networking: VLAN, LLDP/CDP, 802.1p/Q QoS, IPv6
- Headsets: RJ9 headset port with EHS wireless headset support
Package Contents & T3 Series Ordering Information
In the box:
- IP phone
- Handset with handset cord
- Ethernet cable
- Stand
- Quick Start Guide
- Power adapter (optional)
The SIP-T31P sits in Yealink’s classic T3 series:
| Model | Part No. — Key difference |
| Yealink SIP-T31W | 1301039 — 2 lines, built-in dual-band Wi-Fi, 10/100 Ethernet |
| Yealink SIP-T31P (this product) | 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 |
| Yealink SIP-T30P | 1301048 — 1 line entry model (coming soon) |
Datasheet & Downloads
Frequently Asked Questions — Yealink SIP-T31P
What is the difference between the Yealink T31P and T31G?
The T31G has dual-port Gigabit Ethernet, while the T31P has 10/100 Mbps ports. If the desk PC connects through the phone on a Gigabit network, choose the T31G.
Does the T31P need a power adapter?
Not if your switch provides IEEE 802.3af PoE — the phone draws 3–4 W over PoE (Class 1). On non-PoE networks, add the optional Yealink 5 V / 0.6 A power adapter.
Can I use a headset with the T31P?
Yes. It has an RJ9 (4P4C) headset port and supports EHS wireless headsets — or pair it with Yealink YHS34 or YHS36 QD-to-RJ wired headsets.
How many SIP accounts does it support?
Up to 2 SIP accounts, with local 5-way conferencing and a 1000-entry local phonebook.
Should I choose the T31P or step up to the T33G?
The SIP-T33G adds a 2.4" colour screen, 4 lines, 12 programmable DSS keys and Gigabit Ethernet — worth it for busier desks. The T31P remains the value choice for basic 2-line calling.
Does the SIP-T31P come with a warranty in Singapore?
Yes. Every SIP-T31P sold by SourceIT comes with a 1 Year Local Warranty in Singapore and a GST invoice.
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