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Yealink SIP-T21 E2

Yealink SIP-T21 E2
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Administrators Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
18
EXP20
Physical Features:
- Rich visual experience with 160 x 320 graphic LCD
- 20 physical keys each with a dual-color LED
- 20 additional keys through page switch
- Daisy-chain 6 modules up to 120 physical keys
- Expansion module (2) is powered by the host phone
- 2*RJ-12 (6P6C) ports for data in and out

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