The Yealink SIP-T31P is an entry-level IP phone with two SIP accounts, a 2.3 inch backlit display, HD voice, local 5-way conferencing and built-in PoE. It has a two-port 10/100M Ethernet switch and a stand with 2 adjustable angles. Check before ordering: the external power adapter is listed as optional, so use PoE or call us.
The Yealink SIP-T31P is an entry-level VoIP desk phone from Yealink with a 2.3 inch 132 x 64-pixel backlit display, two SIP accounts, local 5-way conferencing and built-in Power over Ethernet. Yealink lists it in Classic Grey.
The SIP-T31P is a standards-based SIP phone for a desk that needs two lines and a straightforward set of features. It registers with a SIP-based phone system or hosted service, takes its power from a PoE network port, and has a second Ethernet port so a PC can share the same network connection. It sits in our IP desk phones range.
| General | |
| Model | Yealink SIP-T31P |
| Manufacturer part number (MPN) | SIP-T31P |
| Type | Entry-level IP phone with 2 lines and HD voice |
| Colour | Classic Grey |
| Phone features | |
| VoIP accounts | 2 (up to 2 SIP accounts) |
| Conferencing | Local 5-way conferencing |
| Call functions | Call hold, mute, DND, call forward, call waiting, call transfer, one-touch speed dial, hotline, group listening, auto answer, redial, call return, emergency call, SMS |
| Other | Direct IP call without SIP proxy, dial plan, ring tone selection, XML browser, action URL/URI, RTCP-XR and VQ-RTCPXR |
| Audio | |
| HD voice | HD handset and HD speaker, Smart Noise Filtering |
| Wideband codecs | Opus, G.722 |
| Narrowband codecs | PCMU (G.711A), PCMA (G.711), G.723.1, G.729, G.729A, G.729B, G.729AB, G.726, iLBC |
| DTMF | In-band, out-of-band (RFC 2833) and SIP INFO |
| Speakerphone | Full-duplex hands-free speakerphone with AEC |
| Audio processing | VAD, CNG, AEC, PLC, AJB, AGC |
| Display and keys | |
| Display | 2.3 inch 132 x 64-pixel graphical LCD with backlight |
| Indicators | LED for call and message waiting; dual-colour (red or green) LEDs for line status |
| Keys | 2 line keys with LED, 6 feature keys (transfer, message, headset, redial, mute, hands-free speakerphone), 5 navigation keys, volume control keys |
| Interfaces and power | |
| Network ports | 2 x RJ45 10/100M Ethernet ports (two-port switch) |
| Power over Ethernet | IEEE 802.3af, class 1 (applies to phones with a V2 logo or later on the label, per the datasheet) |
| Handset and headset ports | 1 x RJ9 (4P4C) handset port, 1 x RJ9 (4P4C) headset port |
| Headset | EHS wireless headset support |
| External power adapter | Optional Yealink AC adapter: AC 100-240 V input, DC 5 V/0.6 A output |
| Power consumption (PSU) | 2-3 W |
| Power consumption (PoE) | 3-4 W |
| Network and security | |
| SIP | SIP v1 (RFC2543), v2 (RFC3261); proxy mode and peer-to-peer SIP link mode; call server redundancy |
| Network | Static/DHCP, STUN NAT traversal, UDP/TCP/DNS-SRV (RFC 3263), 802.1p/Q VLAN tagging, Layer 3 ToS DSCP, LLDP/CDP/DHCP VLAN, IPv6, ICE, SNTP |
| Security | SRTP for voice, TLS 1.3, HTTPS certificate manager, AES256 configuration file encryption, digest authentication, OpenVPN, IEEE 802.1X, L2TP VPN, secure boot |
| Management | |
| Provisioning | Browser, phone or auto-provision via FTP/TFTP/HTTP/HTTPS, PnP, zero-touch, TR-069 |
| Platforms | Yealink Device Management Platform (YDMP) and YMCS support |
| Physical | |
| Mounting | Stand with 2 adjustable angles; wall mountable |
| Dimensions (W x D x H x T) | 188 x 189 x 162 x 50 mm |
| Operating temperature | -10 to +45 C (+14 to 113 F) |
| Operating humidity | 10-95% |
| Storage temperature | -30 to +70 C (-22 to +158 F) |
| Packaged weight | Carton gross weight 10.83 kg for 10 phones (about 1.08 kg per phone) |
| Compliance | REACH |
| In the box | |
| Package contents | Yealink SIP-T31P IP phone, handset with handset cord, Ethernet cable (1.5 m CAT5E UTP), stand, quick start guide; power adapter optional |
You will need a SIP account or phone system to register the phone with, and a network connection. The phone can be powered by PoE (IEEE 802.3af) from a suitable switch or injector; the datasheet lists the external power adapter as optional, so check the product page or call us if you need to confirm what is supplied. The class 1 PoE rating applies to phones with a V2 logo or later on the label, according to Yealink. For compatibility with a particular phone system or headset, check the product page or call us.
We are a UK supplier, not an installer, and we will go through the product with you before you buy. Our trade counter is in Wolverhampton and we have been operating since 2012.
Yes. Yealink lists built-in PoE (IEEE 802.3af, class 1 on phones with a V2 logo or later on the label). An external power adapter is listed as optional.
It supports up to 2 SIP accounts, with 2 line keys with LEDs, and local 5-way conferencing.
There is an RJ9 (4P4C) headset port and Yealink lists EHS wireless headset support. For a specific headset, check the product page or call us.
Orders placed before 2:30pm are normally dispatched for delivery within 1–2 working days to England, Scotland and Wales. You can also collect in store from our trade counter - call first so we can confirm your order is ready. We do not ship to Northern Ireland.
Yes. Our trade counter is at Unit 3, Park View Centre, 243 Dudley Road, Wolverhampton WV2 3JU. Please call 01902 902251 first so we can confirm your order is ready.
Yes, trade accounts are available. See our trade customer page.
Questions on specification or compatibility: call 01902 902251, see our FAQ and support pages, or contact us.
| Product Code | SIP-T31P |
|---|---|
| Manufacturer | Yealink |
| Colour | Brown |
| Product Type | IP desk phone |
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