Reliable everyday calling with HD audio, PoE and straightforward controls.
The Yealink SIP-T31P is a cost-effective two-account desk phone for light-use business positions, common areas and larger deployments. It combines a backlit graphical display, PoE, full-duplex speakerphone, Smart Noise Filtering and the core Hosted PBX functions most users need.
At a glance
- 2 VoIP accounts
- 2.3-inch 132 × 64 backlit graphical display
- Two-port 10/100 Ethernet switch
- Power over Ethernet
- Local 5-way conferencing
- HD handset and HD speakerphone
- Optional EHS wireless-headset support
Why choose the T31P?
Clear business audio
- Yealink HD Voice
- Smart Noise Filtering reduces distracting background sound
- Wideband Opus and G.722 codec support
- Full-duplex hands-free speakerphone with acoustic echo cancellation
- HD audio through both handset and speaker
Practical desk-phone design
- Two LED line keys
- Dedicated transfer, message, headset, redial, mute and speakerphone keys
- Five-way navigation control and volume keys
- Hall-switch handset design
- Two-angle adjustable stand
- Optional wall mounting
Everyday call handling
- Hold, mute and Do Not Disturb
- Call forward, waiting and transfer
- One-touch speed dial and hotline
- Redial, call return and auto answer
- Group listening and emergency calling
- Direct IP calling and local 5-way conference
Business deployment
- Unified T3-series firmware
- Browser, phone or automatic configuration
- FTP, TFTP, HTTP and HTTPS mass provisioning
- Plug-and-play provisioning and TR-069
- Compatible with Yealink device-management services
- Remote logs, tracing, reboot and factory reset
Detailed specifications
Display and indicators
- 2.3-inch 132 × 64 graphical LCD with backlight
- Caller ID by name and number
- Call and message-waiting LED
- Red/green line-status LEDs
- Icon and soft-key interface
- Multilingual interface and power-saving mode
Directories and history
- Local phonebook for up to 1,000 entries
- Blocklist
- XML and LDAP remote phonebooks
- Smart dialling
- Phonebook search, import and export
- Dialled, received, missed and forwarded call history
Hosted PBX features
- Busy Lamp Field and Bridged Line Appearance
- Voicemail and visual voicemail
- Hot-desking and flexible seating
- Call park and call pickup
- Executive/assistant functions
- Centralised and local call-recording support
- Anonymous calling and anonymous-call rejection
Audio and signalling
- Wideband codecs: Opus and G.722
- Narrowband codecs include G.711, G.723.1, G.729 variants, G.726 and iLBC
- In-band, RFC 2833 and SIP INFO DTMF
- Voice activity detection, comfort noise, packet-loss concealment, adaptive jitter buffering and automatic gain control
- RTCP-XR and voice-quality reporting
Connections and power
- Two 10/100 Mbps RJ45 Ethernet ports
- IEEE 802.3af PoE, Class 1 on supported hardware
- RJ9 handset port
- RJ9 headset port
- Optional 5 V / 0.6 A power adaptor
- Typical power consumption: 2–3 W by adaptor or 3–4 W by PoE
Network and security
- SIP v1 and v2 with server redundancy
- Static or DHCP addressing and IPv6
- VLAN, LLDP, CDP and QoS support
- SRTP voice encryption and TLS 1.3
- HTTPS certificate management and AES-256 configuration encryption
- 802.1X, OpenVPN, L2TP VPN and ICE
- WPA2/WPA3, secure boot and GARP
Physical details
- Classic Grey finish
- Approx. 188 × 189 × 162 × 50 mm
- Operating temperature: −10°C to 45°C
- Operating humidity: 10–95%
- Wall-mount capable
- Package includes phone, handset and cord, Ethernet cable, stand and quick-start guide
- Power adaptor is optional
Who the T31P suits
Light-use office desks, common areas, lunchrooms, workshops and cost-conscious multi-phone deployments.
Installation note: A power adaptor is not normally required when the phone is connected to a compatible PoE switch. Confirm headset and EHS compatibility before ordering.
Supplied, provisioned and supported by AbleTech
We can supply the T31P as part of a new AbleTech Hosted PBX system or add it to a compatible existing AbleTech service. We provision user accounts, line keys, call-flow features, directories and supported accessories, then provide ongoing support.
Is the Yealink T31P right for your business?
Tell us how the user works and we will confirm the best handset, accessories and phone-system configuration.