Yealink SIP-T31G - VoIP phone with caller ID - 5-way call capability - SIP, SIP v2, SRTP - 2 lines - classic gray

General

Product Type

VoIP phone

Body Colour

Classic gray

Miscellaneous

Cables Included

Ethernet cable - 1.5 m

Connections

Headset jack / RJ-9 ¦ Handset jack / RJ-9

Included Accessories

Stand

Placing / Mounting

Wall-mountable, table-top

Display

Type

LCD display - monochrome

Diagonal Size

2.3"

Display Resolution

132 x 64 pixels

Display Location

Base

Backlit

Yes

Phone Features

Dialer Location

Base

Conference Call Capability

5-way

Volume Control

Yes

Indicators

Voice message waiting indicator

Speakerphone

Yes

Additional Functions

Call recording, Intercom, mute, Do Not Disturb (DND)

Call Services

Voice Mail, Caller ID, Call Waiting, Call Forwarding, Call Transfer, Call Hold, Message Waiting Capability

Caller ID Type

Caller ID

Dimensions & Weight (Base)

Width

18.8 cm

Depth

18.9 cm

Height

16.2 cm

Phone Memory

Phone Directory Capacity

1000 names & numbers

IP Telephony

Network Protocols

IP, TCP, TFTP, UDP, HTTP, HTTPS, Link Layer Discovery Protocol (LLDP), SRTP, DNS SRV, STUN

Main Features

Multiple VoIP protocol support, integrated Ethernet switch

Voice Codecs

G.722, G.723.1, G.729, G.729a, G.726, iLBC, Opus, G.711A/µ

Quality of Service

IEEE 802.1Q (VLAN), IEEE 802.1p

IP Address Assignment

DHCP, static, PPPoE

Network Ports Qty

2 x Ethernet 10Base-T/100Base-TX/1000Base-T

VoIP Protocols

SIP, SIP v2, SRTP

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)

Lines Supported

2 lines

Security

TLS

Network Features

Network Address Translation (NAT), Class 2 PoE, Lightweight Directory Access Protocol (LDAP)

Power Over Ethernet (PoE) Support

Yes

VoIP

Yes