| Feature |
Specification |
| Audio Features |
|
| HD voice |
HD handset, HD speaker |
| Smart Noise Filtering |
Yes |
| 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, Out-of-band (RFC 2833) and SIP INFO |
| Speakerphone |
Full-duplex hands-free with AEC |
| Other Audio Features |
VAD, CNG, AEC, PLC, AJB, AGC |
| Phone Features |
|
| VoIP accounts |
2 |
| Call management |
Call hold, mute, DND, forward, waiting, transfer, park, pickup |
| Speed dial |
One-touch speed dial, hotline |
| Conferencing |
Local 5-way conferencing |
| Other Call Features |
Group listening, SMS, emergency call, redial, call return, auto answer, direct IP call |
| Customization |
Ring tone selection/import/delete, set date time manually or automatically, dial plan |
| Advanced Features |
XML Browser, action URL/URI, integrated screenshots, RTCP-XR, VQ-RTCPXR, Enhanced DSS Key |
| Directory |
|
| Local phonebook |
Up to 1000 entries |
| Black list |
Yes |
| Remote phonebook |
XML/LDAP |
| Smart dialing |
Yes |
| Phonebook actions |
Search/import/export |
| Call history |
Dialed/received/missed/forwarded |
| IP-PBX Features |
|
| BLF/BLA |
Yes |
| Anonymous call |
Yes, with rejection |
| Hot-desking |
Yes |
| Voice mail |
Yes, visual |
| Flexible seating |
Yes |
| Executive and Assistant |
Yes |
| Call recording |
Centralized, call recording |
| Display and Indicator |
|
| Display |
2.3” 132x64-pixel graphical LCD with backlight |
| LEDs |
Call and message waiting, dual-color (red or green) for line status |
| User interface |
Intuitive with icons and soft keys, multilingual |
| Caller ID |
With name and number |
| Power saving |
Yes |
| Feature keys |
|
| Line keys |
2, with LED |
| Feature keys |
6 (transfer, message, headset, redial, mute, hands-free speakerphone) |
| Navigation keys |
5 |
| Volume control keys |
Yes |
| Interface |
|
| Ethernet ports |
2 x RJ45 10/100M |
| Power over Ethernet (PoE) |
IEEE 802.3af, class 1 |
| Handset port |
1 x RJ9 (4P4C) |
| Headset port |
1 x RJ9 (4P4C) |
| Other Physical Features |
|
| Color |
Classic Grey |
| Wall mountable |
Yes |
| AC adapter |
External 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 |
| Dimension (W x D x H x T) |
188 x 189 x 162 x 50 mm |
| Operating humidity |
10-95% |
| Operating temperature |
-10 to +45°C (+14 to 113°F) |
| Storage temperature |
-30 to +70°C (-22 to +158°F) |
| Management |
|
| Configuration |
Browser/phone/auto-provision |
| Auto provision |
via FTP/TFTP/HTTP/HTTPS for mass deploy, with PnP |
| Other Management |
Zero-sp-touch, TR-069, Phone lock, Reset to factory, reboot, Package tracing export, system log |
| Network and Security |
|
| SIP |
v1 (RFC2543), v2 (RFC3261) |
| Call server redundancy |
Supported |
| NAT traversal |
STUN mode |
| SIP link mode |
Proxy mode and peer-to-peer |
| IP assignment |
Static/DHCP |
| Web server |
HTTP/HTTPS |
| Time synchronization |
Using SNTP |
| DNS |
UDP/TCP/DNS-SRV (RFC 3263) |
| QoS |
802.1p/Q tagging (VLAN), Layer 3 ToS DSCP |
| SRTP |
For voice |
| TLS |
Transport Layer Security (TLS 1.3) |
| HTTPS |
Certificate manager |
| Encryption |
AES encryption for configuration file (AES256) |
| Authentication |
Digest authentication |
| VPN |
OpenVPN, IEEE802.1X, L2TP VPN |
| IPv6 |
Yes |
| Other Network Features |
LLDP/CDP/DHCP VLAN, ICE, GARP |
| Security |
WPA2/WPA3, Secure boot |
| Package Features |
|
| Package content |
Yealink SIP-T31P IP phone, Handset with cord, Ethernet Cable, Stand (optional), Quick Start Guide, Power Adapter (Optional) |
| Qty/CTN |
10 PCS |
| N.W/CTN |
9.79 kg |
| G.W/CTN |
10.83 kg |
| Giftbox size |
213 × 210 × 103 mm |
| Carton Meas |
535 × 443 × 227 mm |
