Yealink SIP T21 High Quality Voice Over IP Phone
Yealink’s new SIP-T21 takes entry-level IP phones to a level never achieved before. Making full-use of high-quality materials, plus an extra-large 132 x 64-pixel graphical LCD showing a clear 5-line data display, it offers a smoother user experience, much more visual information at a glance, plus HD Voice characteristics. Dual 10/100 Mbps network ports with integrated PoE are ideal for extended network use. The T21 supports two VoIP account, simple, flexible and secure installation options, plus support for IPv6, Open VPN and a redundancy server. It also operates with SRTP/ HTTPS/ TLS, 802.1x. As a very cost-effective and powerful IP solution, the T21 maximizing productivity in both small and large office environments.
| Handset: | wired |
| Display: | LCD, 132x64 |
| Number of lines: | 2 |
| Phone book: | 1000 |
| Voicemail: | Yes |
| Forwarding / Conference: | +/+ |
| Audio codecs: | G.723.1, G.729 A/B, G.711 U/A, G.726-32, G.722 (broadband) |
| Full duplex speakerphone: | Yes |
| VoIP-protocols: | SIP 2.0(RFC3261) |
| PoE support: | Yes |
| Interface to PC: | RJ-45 |
| Interface to the internet connect: | RJ-45 |
| Model features: | possible to configure via the keyboard, automatic update of configuration and software through the server Autoprovision, VAD (Voice Activity Detection), CNG (Comfort Noise Generation), AEC (Echo cancellation), NLP (Noise Reduction), AGC (Automatic adjustment of the microphone sensitivity) |
| Color: | black/gray |
| Warranty: | 18 months |
| Kit includes: | phone, power supply, cable to the PC, manual, warranty card |
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