Yealink SIP-T31 2 Line IP Phone without PoE

CDR / VoIP

Yealink SIP-T31 2 Line IP Phone without PoE

Brand: Yealink

Product Code: YL-SIP-T31

Catalog number: 8471

Warranty (months):

Product on demand

Price

53,80 $

66,17 $ incl. tax

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Description

Yealink SIP-T31 is a VoIP phone that supports 2 SIP accounts. It has been equipped with 2 fast Ethernet ports and a monochrome LCD display with a resolution of 132x64px. The device does not support poE, it must be powered by the DC (5V) socket, the power supply is included in the set. Additionally, on the side of the housing there is an RJ-9 port, thanks to which you can connect a hands-free set. The phone is equipped with a speaker and handset that supports HD audio.

The offered product supports modern voice codecs: Opus, G.722, G.711, G.729AB, G.726, iLBC. An important advantage is the extensive provisioning that facilitates remote device configuration and eliminates the need to manually select options. The SIP-T21 E2 uses the RPS (Redirection and Provisioning Service) function and a special boot mechanism. It is compatible with 3CS and Broadsoft Broadworks as well as Asterisk.

The phone supports numerous functions such as call parking, call transfer and three-way conference. The housing can be placed on a desk or mounted on a wall. The device supports SIP connection via TLS / SSL to maximize security.

The most important features:

support for 2 SIP accounts;
2 fast Ethernet ports;
RJ-9 connector;
HD audio;
132x64 px monochrome LCD display;
codecs G.722, G.711 (A / μ), G.729AB, G.726, iLBC;
extensive provisioning;
no PoE support.

Specification

Physical properties
SIP-T31
HD sound	Loudspeaker and earpiece
Broadband audio codecs	Opus G.722
Narrowband audio codecs	G.711 (A/μ) G.729AB G.726 iLBC
DTMF	IN-band Out-of-band (RFC 2833) SIP INFO
Other audio functions	Hands-free function full duplex with AEC
Other audio functions	VAD, CNG, AEC, PLC, AJB, AGC
General phone properties	2 VoIP accounts Hold / mute a call, DND Speed Dial Call forwarding Waiting calls Call transfer Hands-free function, SMS, emergency call Redial Callback automatic answer Local 3-way conference Direct IP connection without SIP proxy Select / import / delete ringtone Manual or automatic date and time selection Numbering plan XML Browser, action URL / URI Screen shots RTCP-XR
Phone book	Up to 1000 entries Black list XML / LDAP remote book Intelligent Search Book search / import / export Call history: made / received / missed / forwarded
Properties of IP-PBX	Busy Lamp Field (BLF) Bridged Line Apperance (BLA) Anonymous call making / rejection Message Waiting Indicator (MWI) Voicemail, call parking, call retrieval Interkon, paging, playing while waiting, emergency calls Call recording, hot-desking
Display and LEDs	LCD, 132 x 64 px LED diode informing about waiting calls and messages Bi-color LED (red / green) for information about the status of the line User interface with icons and function keys Multiple language support Caller ID with name and number
Function buttons	2 line buttons with LEDs 6 buttons: message, handset, radial, transfer, mute, loudspeaker 6 navigation buttons Volume control
Interfaces	2 fast Ethernet ports 10/100 Mb / s 1 RJ-9 (4P4C) port for connecting a handset 1 RJ-9 port (4P4C) for headset connection
Management	Configuration via browser / phone / auto-provisioning Auto-provisioning via FTP / TFTP / HTTP / HTTPS Auto-provisioning from PnP Zero-sp-touch, TR-069 Phone lock for privacy protection Factory Reset, Reboot Data tracking export, system logs
Network and security	SIP v1 (RFC2543), v2 (RFC3261) Call server redundancy NAT traverse: STUN mode Proxy and peer-to-peer mode in SIP link mode IP assignment: static or DHCP HTTP / HTTPS web server Time and date synchronization with SNTP UDP / TCP / DNS-SRV (RFC 3263) QoS: 802.1p / Q tagging (VLAN) Layer 3 ToS DSCP SRTP for voice Transport Layer Security (TLS) HTTPS certificate management AES encryption of configuration files MD5 / MD5-sess authentication OpenVPN, IEEE 802.1X IPv6 LLDP / CDP / DHCP VLAN
Montage	On a desk or wall
Power Supply	5 V 0,6 A
Maximum power consumption	1,2 - 1, 9 W
Dimensions	209 x 188 x 150 x 41 mm
Permissible air humidity	10%-95%
Permissible temperature	From -10 to 50 °C