Yealink Yealink T21P E2 IP Phone, 2 Lines. 2.3-Inch Graphical Display. Dual-port 10/100 Ethernet, 802.3af PoE, Power Adapter Not Included (SIP-T21P E2)

The sip-t21 uses an extra-large 132 x 64-pixel graphical lcd showing a clear 5-line data display offering smoother user experience plus hd voice characteristics. This phone uses dual 10/100 mbps network ports that are ideal for extended network use with t21 supports two VoIP account, simple, flexible and secure installation options, plus support for ipv6, open vpn and a redundancy server. Specification > audio features > hd voice: Hd handset, hd speaker > dtmf: In-band, out-of-band(rfc 2833) and sip info > full-duplex hands-free speakerphone with aec > vad, cng, aec, plc, ajb, agc phone features > 2 VoIP accounts > call hold, mute, dnd > one-touch speed dial, hotline > call forward, call waiting, call transfer > group listening, sms, emergency call > redial, call return, auto answer > local 3-way conferencing > direct ip call without sip proxy > ring tone selection/import/delete > set date time manually or automatically > dial plan > xml browser, action url/uri > integrated screenshots > rtcp-xr interface...