Yealink SIP-T31W
VoIP phone with caller ID | IEEE 802.11a/b/g/n/ac (Wi-Fi) | 5-way call capability | SIP, SIP v2, RTCP, SRTP | 2 lines | classic gray
Main Specification
| Product Description | Yealink SIP-T31W - VoIP phone with caller ID - 5-way call capability |
|---|---|
| Product Type | VoIP phone with caller ID |
| Cordless Phone Standard | IEEE 802.11a/b/g/n/ac (Wi-Fi) |
| Main Features | Multiple VoIP protocol support, integrated Ethernet switch |
| VoIP Protocols | SIP, SIP v2, RTCP, SRTP |
| Voice Codecs | G.722, G.723.1, G.729ab, G.726, iLBC, G.711A/µ |
| Lines Supported | 2 lines |
| Speakerphone | Yes |
| Call Services | Voice Mail, Caller ID, Call Waiting, Call Forwarding, Call Transfer, Call Hold, Message Waiting Capability |
| Display | LCD display - monochrome - Yes |
| Network Ports Qty | 2 x Ethernet 10Base-T/100Base-TX |
| Body Colour | Classic gray |
General
| Product Type | VoIP phone |
|---|---|
| Body Colour | Classic gray |
Phone Features
| Cordless Phone Standard | IEEE 802.11a/b/g/n/ac (Wi-Fi) |
|---|---|
| Call Services | Voice Mail, Caller ID, Call Waiting, Call Forwarding, Call Transfer, Call Hold, Message Waiting Capability |
| Caller ID Type | Caller ID |
| Dialer Location | Base |
| Conference Call Capability | 5-way |
| Speakerphone | Yes |
| Volume Control | Yes |
| Indicators | Voice message waiting indicator, busy lamp field (BLF) |
| Additional Functions | Call recording, Intercom, mute, Do Not Disturb (DND), blacklist, Bridged Line Appearance (BLA), call hold |
IP Telephony
| Main Features | Multiple VoIP protocol support, integrated Ethernet switch |
|---|---|
| VoIP | Yes |
| VoIP Protocols | SIP, SIP v2, RTCP, SRTP |
| Voice Codecs | G.722, G.723.1, G.729ab, G.726, iLBC, G.711A/µ |
| Lines Supported | 2 lines |
| Quality of Service | IEEE 802.1Q (VLAN), IEEE 802.1p, Layer 3 TOS |
| IP Address Assignment | DHCP, static, PPPoE |
| Security | WPA2, 256 bit AES, TLS, WPA3 |
| Power Over Ethernet (PoE) Support | Yes |
| Network Protocols | IP, TCP, TFTP, UDP, HTTP, SNMP, HTTPS, Link Layer Discovery Protocol (LLDP), SRTP, SNTP, GARP, DNS SRV, STUN |
| Network Ports Qty | 2 x Ethernet 10Base-T/100Base-TX |
| Voice Features | Comfort noise generation (CNG), voice activity detection (VAD), HD Voice, acoustic echo cancellation (AEC), packet loss concealment (PLC), adaptive jitter buffer (AJB), automatic gain control (AGC), dual tone multi-frequency (DTMF) |
| Network Features | Network Address Translation (NAT), Class 2 PoE, Lightweight Directory Access Protocol (LDAP) |
Phone Memory
| Phone Directory Capacity | 1000 names & numbers |
|---|
Display
| Type | LCD display - monochrome |
|---|---|
| Display Location | Base |
| Diagonal Size | 2.3" |
| Display Resolution | 132 x 64 pixels |
| Backlit | Yes |
Miscellaneous
| Connections | Headset jack / RJ-9 Handset jack / RJ-9 |
|---|---|
| Placing / Mounting | Wall-mountable, table-top |
| Cables Included | Network cable |
| Included Accessories | Stand |
Power
| Power Consumption | 1.3-1.7 W (PSU), 2-2.6 W (PoE) |
|---|
Dimensions & Weight (Base)
| Width | 18.8 cm |
|---|---|
| Depth | 18.9 cm |
| Height | 16.2 cm |
Dimensions & Weight (Shipping)
| Shipping Width | 21.3 cm |
|---|---|
| Shipping Depth | 21 cm |
| Shipping Height | 10.3 cm |
Product features
Stronger performance, more possibilities
Equipped with powerful chip, the T3 series owns a stronger computing ability and more upgraded functions, which ensures a higher productivity and smoother office experience. Due to great performance, T3 series is capable to extend more services for different business demands.Superior HD audio, better communication
The Yealink T3 series provides distraction-free communications with Smart Noise Filtering Technology, which delivers excellent sound quality without extraneous noises and allows fluent conversations.Wireless transmission
In order to adapt to the upcoming era of 5G Wi-Fi, the SIP-T31W is equipped with dual-band Wi-Fi. 5G Wi-Fi offers better anti-interference capabilities and faster speeds, allowing you to stay ahead in a busy data environment.All-in-one platform, convenient management
Proven reliability and integrations for Yealink Device Management Platform, installed the unified firmware, T3 series is simple to deploy and manage, which allows a significant reduction in the operation and maintenance cost.Key selling points
- Built-in dual band 2.4G/5G Wi-Fi (802.11a/b/g/n/ac)
- Yealink HD Voice
- 2.3" 132x64-pixel graphical LCD with backlight
- Two-port 10/100M Ethernet switch
- PoE support
- Up to 2 SIP accounts
- Local 5-way conferencing
- Support EHS wireless headset
- Unified firmware
- Support YDMP/YMCS
- Stand with 2 adjustable angles
- Wall-mountable
- Handset with hall switch
References
MPN: SIP-T31W
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04/06/2026 07:28:40