Yealink T3 Series IP Phones Comparison

Model

T30/T30P

T31/T31P/T31G

T33P/T33G
LCD 2.3″ Graphical LCD 2.3″ Graphical LCD 2.4″ Color LCD
Resolution 132 x 64 132 x 64 320 x 240
LCD Backlight X √ (Adjustable Brightness) √ (Adjustable Brightness)
Line 1 2 4
Line Key 0 2 4
Memory Key 0 2 12 (4 Pages of 3 Keys)
PoE √ (T30P) √ (T31P/T31G) √
GigE X √ (T31G) √ (T33G)
Wireless Headset Adapter EHS35 EHS35 EHS35
N-Way Audio Conferencing 5 5 5
Wide-band Codecs G.722, Opus G.722, Opus G.722, Opus
Narrow-band Codecs G.711 (A/µ), G.729AB, G.726, iLBC, G.723.1 G.711 (A/µ), G.729AB, G.726, iLBC, G.723.1 G.711 (A/µ), G.729AB, G.726, iLBC, G.723.1
Foot Stand 2 Adjustable Angles 2 Adjustable Angles 2 Adjustable Angles
Wall Mounting √ √ √
Security Slot √ √ √
External Yealink AC Adapter (optional) AC 100~240V Input and DC 5V/600mA Output AC 100~240V Input and DC 5V/600mA Output AC 100~240V Input and DC 5V/600mA Output