yealink sip-t31 ip phone

Description

Yealink sip-t31 ip phone specs:

Yealink SIP-T31 IP Phone Technical Specifications Audio functions HD voice: HD handset, HD speaker
Intelligent noise filtering
Wideband codec: Opus, G. 722
Narrowband codec: G. 711(A/μ), G. 723.1, G. 729AB, G. 726, iLBC
DTMF: in-band, out-of-band (RFC 2833) and SIP INFO
Full-duplex speakerphone with AEC
VAD, CNG, AEC, PLC, AJB, AGC Phone Features 2 VoIP accounts
Call hold, mute, DND
One-touch speed dialling, hotline
Call forward, call waiting, call transfer
Group listening, SMS, emergency call
Redial, call return, auto answer
Local 5-way conferencing
Direct IP connection without SIP proxy server
Ringtone selection/import/delete
Set time of day manually or automatically
Dial plan
XML browser, action URL / URI
Integrated screenshots
RTCP-XR, VQ-RTCPXR
Enhanced DSS key Catalogue Loal phone book with up to 1000 entries
Blacklist
XML / LDAP remote phonebook
Smart dial
Phone book search/import/export
Call history: dialed/received/missed/forwarded IP-PBX features Busy Lamp Field (BLF), Bridged Line Apperance (BLA)
Anonymous call, Anonymous reject
Hot-desking, voice mail
Flexible seating
Call park, call pickup
Supervisor and Assistant
Centralised call recording
Visual voicemail
Call recording Display and indicator 2.3″ 132×64 pixel graphic LCD with backlight
LED indicating calls and messages waiting
Bicolour (red or green) backlit LED for line status information
Intuitive user interface with icons and soft keys
Multilingual user interface
Caller ID with name and number
Energy Saving Function keys 2 line keys with LED
n6 function keys: transfer, message, headset, redial, mute, speakerphone
n5 navigation keys
Volume control keys Interface 2 x Ethernet RJ45 10/100M ports
n1 x Headset port RJ9 (4P4C)
n1 x RJ9 headset port (4P4C) Management Configuration: browser / phone / auto start
Auto-sharing via FTP/TFTP/HTTP/HTTPS for mass installation
Auto-provisioning with PnP
Zero-sp-touch, TR-069
Phone lock for privacy protection
Reset to factory default, reboot
Export packet trace, system log Network and security SIP v1 (RFC2543), v2 (RFC3261)
Call server redundancy supported
NAT traversal: STUN mode
Proxy and SIP peer-to-peer link mode
IP assignment: static / DHCP
HTTP/HTTPS web server
Time and date synchronization via SNTP
UDP / TCP / DNS-SRV (RFC 3263)
QoS: 802.1 p/Q tagging (VLAN), Layer 3 TOS DSCP
SRTP for voice
Transport Layer Security (TLS)
HTTPS certificate manager
AES encryption for configuration file
Digest authentication
OpenVPN, IEEE802.1x
IPv6
LLDP/CDP / DHCP VLAN
ICE Other physical characteristics Colour Grey Classic Installation possibility On the wall External power adapter by Yealink AC input 100~240V and DC output 5V/600mA Power consumption (power supply) 2-3W Dimension (W*D*H*T) 188 mm * 189 mm * 162 mm * 50 mm Operating humidity 10~95% Operating temperature -10~50°C (+14~122°F)