Yealink SIP-T22 is a corporate IP phone with 3 SIP lines, independent configuration, 2 ports and Titan voice engine from Texas Instruments.

Yealink SIP-T22 is a 3-account corporate phone with the Titan voice engine from Texas Instruments.

Phone specifications

Support for 3 SIP lines with independent configuration.

3 programmable buttons with light indication.

Fully Russified: has a Russian menu, web interface, input of text messages and contacts in Russian.

Phone book (300 entries), phone book export/import, remote phone book (XML, LDAP), black list, call history (100 entries), speed and accelerated dialing, dialing rules.

Keypad lock, changeable logo on the phone screen, volume control, ringtone selection.

Call hold and waiting, call forwarding and transfer, DND mode, conference calling, call pickup, intercom calls (including group intercom call: Paging), hotline, auto answer, emergency call, auto redial mode.

Voicemail, SIP SMS.

Control and configure your phone from the keyboard via a web interface or remotely.

Centralized installation, setup, configuration and software update via Autoprovision function (TFTP/FTP/HTTP/HTTPS/PNP/DHCP).

Support for SNMP v1/2, TR069 protocol (optional).

Support for Yealink RPS (Redirection and Provisioning Service).

Special features for BroadSoft, Genesys, etc. platforms.

Network characteristics

Support for SIP 2.0 protocol (RFC3261).

Transport: UDP, TCP, TLS, DNS SRV.

NAT transverse support: STUN mode.

Call modes: Peer-to-Peer, SIP Proxy.

3 network modes: DHCP / static IP / PPPoE.

Support 802.1x, LLDP.

Support VLAN (IEEE 802.1p/q tagging); TOS (layer 3).

Supports in-band DTMF, out-of band RFC2833 DTMF and SIP INFO.

Support for encryption and identification standards (MD5 and MD5-sess).

SRTP support.

HTTPS client/server.

Working with voice

HD sound: Texas Instruments voice engine; HD handset and speakerphone speaker;

Sound range from 50Hz to 7kHz.

Support for wideband codec G.722, support for standard codecs G.711, G.726, G.729AB, G.723.1.

Supports VAD (Voice Activity Detection), CNG (Comfort Noise Generator), AEC (Acoustic Echo Cancellation), NLP (Noise Suppression), AGC (Automatic Gain Control), AJB (Adaptive Jitter Buffer).

High quality speakerphone with echo cancellation.

Physical characteristics

Texas Instruments Titan chipset.

Keyboard with Russian alphabet.

Two RJ45 ports (NAT and Bridge modes).

Headset jack RJ9(4P4C).

LCD: 132x64 pixels with gray screen backlight.

Power supply: DC 5V, 1.2A.

Consumption: 1.4-2.8W.

Possibility of wall mounting.

Working temperature: 0°~40°.

Dimensions: 188x209x41mm.