Model	SIP-T48S	SIP-T48G	SIP-T46S	SIP-T46G	SIP-T42S	SIP-T42G	SIP-T41S	SIP-T41P	SIP-T40G	SIP-T40P
Compare
Download	Datasheet	Datasheet	Datasheet	Datasheet	Datasheet	Datasheet	Datasheet	Datasheet	Datasheet	Datasheet
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