Yealink T21P E2
A two-line entry-level IP desk phone with HD voice. It has a 132x64-pixel graphical LCD with backlight, dual 10/100 Mbps Ethernet ports, and PoE support (IEEE 802.3af, Class 2), so it requires only one cable. It supports two SIP accounts and includes a 3.5mm-style RJ9 headset port.
- Display: 132x64-pixel graphical LCD with backlight
- SIP accounts: 2
- Line keys: 2 (with LED)
- Ethernet: 2x RJ45 10/100M ports with PoE (IEEE 802.3af, Class 2)
- Audio codecs: G.722 (wideband); G.711A/µ, G.729AB, G.726, iLBC (narrowband); Opus
- Headset port: 1x RJ9 (4P4C)
- Handset port: 1x RJ9 (4P4C)
- Power consumption (PoE): 1.3–1.8W
- Dimensions (W×D×H×T): 209mm × 188mm × 150mm × 41mm
- Operating temperature: -10 to 50°C