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Yealink SIP-T31P desk phone, dark grey, 2.3 inch backlit LCD, two line keys, handset and headset ports

Yealink Network Technology Co., Ltd

Yealink Network Technology Co., Ltd SIP-T31P VoIP Phone 2.3" 132x64 2 Lines PoE

SKU CH-XVWS-HVDM0 MPN SIP-T31P

Entry-level VoIP phone with a 2.3" 132x64 backlit display, two SIP accounts, dual 10/100M Ethernet ports and PoE support

  • TypeVoIP Phones
  • SecurityNETWORK AND SECURITY SIP v1 (RFC2543), v2 (RFC3261) Call ser
  • Ports2 x RJ45 10/100M Ethernet ports Power over Ethernet (IEEE 80
  • Display2.3" 132x64-pixel graphical LCD with backlight LED for call
  • PowerExternal Yealink AC adapter AC 100-240 V input and DC 5 V/0.
  • DimensionsDimension (W x D x H x T): 188 x 189 x 162 x 50 mm

Model SIP-T31P

  • HD voice clarity with Yealink HD Voice technology
  • 3 inch 132x64 backlit graphical LCD display
  • Dual 10/100M Ethernet ports with PoE support
  • Two SIP accounts for flexible line management
  • Local five-way conferencing for group calls

Entry-level VoIP phone for small offices

The Yealink SIP-T31P is a desk phone built for basic business telephony with two SIP accounts and HD voice. It connects through dual 10/100M Ethernet ports and draws power from IEEE 802.3af PoE or the supplied 5 V adapter. A 2.3" 132x64 graphical LCD with backlight shows caller details and menu icons. Dual-colour LEDs indicate line status and message waiting.

Replaces analogue handsets

Moving to this model adds a second concurrent line, local 5-way conferencing and support for EHS wireless headsets without new cabling when PoE is available. The jump is worthwhile when a team needs call hold, transfer, forward and DND on a shared device but does not require gigabit uplinks or colour displays. Buyers who need more than two simultaneous accounts or a larger screen should consider other models.

Limited by 10/100M switch ports

The integrated switch tops out at 100 Mbps, so PCs daisy-chained through the phone will not see gigabit speeds. Voice traffic uses SIP v1 or v2 with TLS 1.3 and SRTP encryption, but the handset has no native support for video calling, Bluetooth or Wi-Fi. Configuration relies on HTTP/HTTPS, TFTP or OpenVPN provisioning, and the handset does not run third-party applications.

Highlights

  • HD voice clarity with Yealink HD Voice technology
  • 3 inch 132x64 backlit graphical LCD display
  • Dual 10/100M Ethernet ports with PoE support
  • Two SIP accounts for flexible line management
  • Local five-way conferencing for group calls

Specifications

BrandYealink
ModelSIP-T31P
Part NumberSIP-T31P
TypeVoIP Phones
SecurityNETWORK AND SECURITY
SIP v1 (RFC2543), v2 (RFC3261)
Call server redundancy supported
NAT traversal: STUN mode
Proxy mode and peer-to-peer SIP link mode
IP assignment: static/DHCP
HTTP/HTTPS web server
Time and date synchronization using SNTP
UDP/TCP/DNS-SRV (RFC 3263)
QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS DSCP
SRTP for voice
Transport Layer Security (TLS 1.3)
HTTPS certificate manager
AES encryption for configuration file (AES256)
Digest authentication
OpenVPN, IEEE802.1X, L2TP VPN
IPv6
LLDP/CDP/DHCP VLAN
ICE
WPA2/WPA3
Secure boot
GARP (Generic Attribute Registration Protocol)
Ports2 x RJ45 10/100M Ethernet ports
Power over Ethernet (IEEE 802.3af), class 1
1 x RJ9 (4P4C) handset port
1 x RJ9 (4P4C) headset port
Display2.3" 132x64-pixel graphical LCD with backlight
LED for call and message waiting indication
Dual-color (red or green) illuminated LEDs for line status information
Intuitive user interface with icons and soft keys
Multilingual user interface
Caller ID with name and number
Power saving
PowerExternal Yealink AC adapter AC 100-240 V input and DC 5 V/0.6 A output
Power consumption (PSU): 2-3 W
Power consumption (PoE): 3-4 W
DimensionsDimension (W x D x H x T): 188 x 189 x 162 x 50 mm
FeaturesPHONE
2 VoIP accounts
Call hold, mute, DND
One-touch speed dial, hotline
Call forward, call waiting, call transfer
Group listening, SMS, emergency call
Redial, call return, auto answer
Local 5-way conferencing
Direct IP call without SIP proxy
Ring tone selection/import/delete
Set date time manually or automatically
Dial plan
XML Browser, action URL/URI
Integrated screenshots
RTCP-XR, VQ-RTCPXR
Enhanced DSS Key
AUDIO
HD voice: HD handset, HD speaker
Smart Noise Filtering
Narrowband codec: PCMU (G.711A), PCMA (G.711µ), G.723.1, G.729, G.729A, G.729B, G.729AB, G.726, iLBC
DTMF: In-band,
Shipping weight0.91 kg
Package size229 × 229 × 127 mm

Other versions of this model

2 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

How much desk depth does the 188 x 189 x 162 mm SIP-T31P need?

The phone measures 189 mm front to back, so allow at least that much clear depth plus room for cables behind the two RJ45 ports.

Which cable goes into which RJ45 port when I connect the SIP-T31P to the network and my PC?

Plug the incoming network cable into the port labelled LAN and the PC cable into the port labelled PC; reversing them breaks the pass-through switch.

What consumable item will the SIP-T31P need replaced first?

The RJ9 handset or headset cord is the only wear part; the keypad, 2.3" LCD and dual-color LEDs have no user-replaceable components.

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