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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
2
SIP-T54S
Physical Features:
- 4.3” 480 x 272 pixel color display with backlight
- 16 VoIP accounts, Broadsoft Validated/Asterisk
®
Compatible
- HD Voice: HD Codec, HD Handset, HD Speaker
- 36 dedicated hard keys and 4 context-sensitive soft keys
- 1*RJ9 (4P4C) handset port
- 1*RJ9 (4P4C) headset port
- 2*RJ45 10/100/1000Mbps Ethernet ports
- 14 LEDs: 1*power, 10*line, 1*mute, 1*headset, 1*speakerphone
- Power adapter: AC 100~240V input and DC 5V/2A output
- Power over Ethernet (IEEE 802.3af)
- Built-in USB port, support wired USB headset, expansion module EXP50, USB flash drive,
wireless USB headset and Wi-Fi
- Wall Mount
- Hearing aid compatible (HAC) handset
- Bulit-in Bluetooth

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