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Yealink T2 Series
Yealink DECT Cordless
VoIP Conference Phones
VoIP Accessories
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 Model SIP-T48S SIP-T48G SIP-T46S SIP-T46G SIP-T42S SIP-T42G SIP-T41S SIP-T41P SIP-T40G SIP-T40P
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LCD 7" color
touch screen
7" color
touch screen
4.3" color LCD 4.3" color LCD 2.7" graphical LCD 2.7" graphical LCD 2.7" graphical LCD 2.7" graphical LCD 2.3" graphical LCD 2.3" graphical LCD
Resolution 800 x 480  800 x 480  480 x 272 480 x 272 192 x 64 192 x 64 192 x 64  192 x 64  132 x 64 132 x 64
LCD Backlight √ √ √ √ √ √ √ √ √ √
Line 16 16 16 16 12 12 6 6 3 3
PoE √ √ √ √ √ √ √ √ √ √
GigE √ √ √ √ √ √ x x √ x
Wall Mounting √ √ √ √ √ √ √ √ √ √
Foot Stand 2 adjustable angles 2 adjustable angles 2 adjustable angles 2 adjustable angles 2 adjustable angles 2 adjustable angles 2 adjustable angles 2 adjustable angles 2 adjustable angles 2 adjustable angles
USB Port (2.0 compliant) 1 1 1 1 1 x 1 x x x
Ethernet Port Dual-port Gigabit Ethernet Dual-port Gigabit Ethernet Dual-port Gigabit Ethernet Dual-port Gigabit Ethernet Dual-port Gigabit Ethernet Dual-port Gigabit Ethernet  2 x RJ45 10/100M Ethernet ports  2 x RJ45 10/100M Ethernet ports Dual-port Gigabit Ethernet  2 x RJ45 10/100M Ethernet ports
Handset Port (RJ-9) √ √ √ √ √ √ √ √ √ √
Headset Port (RJ-9) √ √ √ √ √ √ √ √ √ √
External Yealink AC Adapter (optional)  AC 100~240V input and DC 5V/2A output  AC 100~240V input and DC 5V/2A output  AC 100~240V input and DC 5V/2A output  AC 100~240V input and DC 5V/2A output  AC 100~240V input and DC 5V/1.2A output  AC 100~240V input and DC 5V/1.2A output  AC 100~240V input and DC 5V/1.2A output  AC 100~240V input and DC 5V/1.2A output  AC 100~240V input and DC 5V/600mA output  AC 100~240V input and DC 5V/600mA output
Line Key 0 0 10 10 6 6 6 6 3 3
Memory Key 29 touch keys 29 touch keys 27 (3 pages of 9 keys) 27 (3 pages of 9 keys) 15 (3 pages of 5 keys) 15 (3 pages of 5 keys) 15 (3 pages of 5 keys) 15 (3 pages of 5 keys) 3 3
Yealink EXP50 Expansion Module  X X X X X X X X X X
Yealink EXP40 Expansion Module  √ √ √ √ x x x x x x
Yealink EXP20 Expansion Module  X X X X X X X X X X
Yealink EHS36 Wireless Headset Adapter √ √ √ √ √ √ √ √ √ √
Yealink YHS32 Headset √ √ √ √ √ √ √ √ √ √
Yealink Bluetooth Adapter BT40 √ √ √ √ √ X √ X X X
Yealink Wi-Fi Adapter WF40 √ √ √ √ √ X √ X X X
USB Recording √ √ √ √ √ X √ X X X
3-way Conferencing √ √ √ √ √ √ √ √ √ √
HD Voice HD Speaker
HD Handset
HD Speaker
HD Handset
HD Speaker
HD Handset
HD Speaker
HD Handset
HD Speaker
HD Handset
HD Speaker
HD Handset
HD Speaker
HD Handset
HD Speaker
HD Handset
HD Speaker
HD Handset
HD Speaker
HD Handset
Wide-band Codecs G.722,Opus G.722 G.722,Opus G.722 G.722, Opus G.722 G.722,Opus G.722 G.722,Opus G.722, Opus
Narrow-band Codecs G.711u/a, G.729A/B, G.726,
G.723.1, ilbc, Opus
G.711u/a, G.729A/B, G.726,
G.723.1, ilbc
G.711u/a, G.729A/B, G.726,
G.723.1, ilbc,Opus
G.711u/a, G.729A/B, G.726,
G.723.1, ilbc
G.711u/a, G.729A/B, G.726,
G.723.1, ilbc,Opus
G.711u/a, G.729A/B, G.726,
G.723.1, ilbc
G.711u/a, G.729A/B, G.726,
 G.723.1, ilbc, Opus
G.711u/a, G.729A/B, G.726,
 G.723.1, ilbc
G.711u/a, G.729A/B, G.726,
 ilbc
G.711u/a, G.729A/B, G.726,
 ilbc
LCD Type Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed
Operating System Linux Linux Linux Linux Linux Linux Linux Linux Linux Linux
Built-in Bluetooth X X X X X X X X X X
Built-in Wi-Fi X X X X X X X X X X
USB Headset √ X √ X √ X √ X X X
Camera X X X X X X X X X X
Video Resolution X X X X X X X X X X
Video Codecs X X X X X X X X X X
3-way Video Conferencing X X X X X X X X X X
5-way video/audio mixed conferencing X X X X X X X X X X
HDMI  X X X X X X X X X X

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