| 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, SRTP, RTCP-XR, ICE, VQ-RTCPXR |
| Voice Codecs |
G.722, G.723.1, G.729, G.729a, G.729ab, G.711a, G.726, iLBC, G.729b, Opus, G.711μ, PCMA, PCMU |
| Lines Supported |
2 lines |
| Speakerphone |
Yes |
| Call Services |
Voice Mail, Caller ID, Call Waiting, Call Forwarding, Call Transfer, Call Hold |
| Display |
LCD display - monochrome - Yes |
| Network Ports Qty |
2 x Ethernet 10Base-T/100Base-TX |
| Compatible Software |
Yealink Device Management Platform(YMDP / YMCS) |
| Body Colour |
Classic gray |
| Cordless Phone Standard |
IEEE 802.11a/b/g/n/ac (Wi-Fi) |
| Wireless Interface Provided |
Wi-Fi |
| Call Services |
Voice Mail, Caller ID, Call Waiting, Call Forwarding, Call Transfer, Call Hold |
| Caller ID Type |
Caller ID |
| Dialer Location |
Base |
| Conference Call Capability |
5-way |
| Speakerphone |
Yes |
| Messaging Services |
SMS |
| Volume Control |
Yes |
| Indicators |
Message waiting indicator, busy lamp field (BLF) |
| Additional Functions |
Call recording, mute, emergency call, call park, call pickup, auto answer, Do Not Disturb (DND), power saving mode, call return, blacklist, anonymous call, anonymous call rejection, Bridged Line Appearance (BLA), Smart Noise Filtering, hotline, one-touch speed dial / redial |
| Main Features |
Multiple VoIP protocol support, integrated Ethernet switch |
| VoIP |
Yes |
| VoIP Protocols |
SIP, SIP v2, SRTP, RTCP-XR, ICE, VQ-RTCPXR |
| Voice Codecs |
G.722, G.723.1, G.729, G.729a, G.729ab, G.711a, G.726, iLBC, G.729b, Opus, G.711μ, PCMA, PCMU |
| Lines Supported |
2 lines |
| Quality of Service |
IEEE 802.1Q (VLAN), IEEE 802.1p, Layer 3 TOS |
| IP Address Assignment |
DHCP, static |
| Security |
WPA2, 256 bit AES, IEEE 802.1X, WPA3, TLS 1.3 |
| Power Over Ethernet (PoE) Support |
Yes |
| Network Protocols |
IP, TCP, TFTP, UDP, Cisco Discovery Protocol (CDP), HTTP, HTTPS, Link Layer Discovery Protocol (LLDP), SRTP, TR-069, SNTP, GARP, RTCP-XR, DNS SRV, VQ-RTCPXR, STUN, L2TP, FTP, DSCP, IPv6, VLAN |
| Network Ports Qty |
2 x Ethernet 10Base-T/100Base-TX |
| Compatible Software |
Yealink Device Management Platform(YMDP / YMCS) |
| Voice Features |
Comfort noise generation (CNG), voice activity detection (VAD), acoustic echo cancellation (AEC), packet loss concealment (PLC), adaptive jitter buffer (AJB), automatic gain control (AGC), Auto-provision with PnP, Zero-sp-touch, dual tone multi-frequency (DTMF), Yealink HD Voice |
| Network Features |
Class 2 PoE, Lightweight Directory Access Protocol (LDAP), 2 SIP accounts, Network Address Translation (NAT) Traversal, IEEE 802.3af |