Yealink-SIP-T77U vs Yealink-SIP-T88W

Comparison of T77U, T88W

67 specifications	A Yealink Yealink-SIP-T77U Model T77U View product	B Yealink Yealink-SIP-T88W Model T88W View product
Designidentical
Product type	IP Phone	IP Phone
Handset type	Wired & Wireless handset	Wired & Wireless handset
Product colour	Black	Black
Backlight keypad	Yes	Yes
Mounting	Desk	Desk
Phone featuresidentical
Answering machine	Yes	Yes
Anonymous call	Yes	Yes
Call forwarding	Yes	Yes
Call history	Yes	Yes
Call hold	Yes	Yes
Call park	Yes	Yes
Call pick up	Yes	Yes
Call return	Yes	Yes
Call waiting	Yes	Yes
Caller ID	Yes	Yes
Conference call	Yes	Yes
Customizable wallpaper	Yes	Yes
Emergency call	Yes	Yes
Full duplex	Yes	Yes
Intercom	Yes	Yes
Message-waiting indicator (MWI)	Yes	Yes
Number of VoIP accounts	12	12
Phonebook capacity	1000 entries	1000 entries
Phonebook sharing	Yes	Yes
Redialing	Yes	Yes
Speed dialling	Yes	Yes
Management featuresidentical
Integrated voicemail	Yes	Yes
Volume control	Buttons	Buttons
Management platform	Yealink Device Management Platform	Yealink Device Management Platform
Displayidentical
Display	LCD	LCD
Display diagonal	17.8 cm (7")	17.8 cm (7")
Display resolution	800 x 480 pixels	800 x 480 pixels
Touchscreen	Yes	Yes
Backlight display	Yes	Yes
Audioidentical
Speakerphone	Yes	Yes
Microphone mute	Yes	Yes
Voice codecs	G.711a, G.711u, G.723.1, G.726, G.729, G.729A, G.729B, G.729ab	G.711a, G.711u, G.723.1, G.726, G.729, G.729A, G.729B, G.729ab
Networkidentical
Ethernet LAN	Yes	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s	10,100,1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet	Gigabit Ethernet
Quality of Service (QoS) support	Yes	Yes
Security algorithms	WPA2, WPA3	WPA2, WPA3
Syslog	Yes	Yes
Ports & interfacesidentical
Headset connectivity	RJ-9	RJ-9
USB 2.0 ports quantity	1	1
USB Type-C ports quantity	1	1
DC-in jack	Yes	Yes
Ethernet LAN (RJ-45) ports	2	2
RJ-9 ports quantity	2	2
Poweridentical
Power over Ethernet (PoE)	Yes	Yes
AC adapter input voltage	100 - 240 V	100 - 240 V
AC adapter output voltage	5 V	5 V
AC adapter output current	2 A	2 A
Operational conditionsidentical
Operating relative humidity (H-H)	5 - 95%	5 - 95%
Operating temperature (T-T)	10 - 45 °C	10 - 45 °C
Storage temperature (T-T)	-30 - 70 °C	-30 - 70 °C
Weight & dimensionsidentical
Width	262.1 mm	262.1 mm
Depth	167.5 mm	167.5 mm
Height	219.2 mm	219.2 mm
Package width	285 mm	285 mm
Package depth	253 mm	253 mm
Package height	104 mm	104 mm
Packaging contentidentical
Mounting kit	Yes	Yes
Ethernet cable	Yes	Yes
Handset	Yes	Yes
Number of handles included	1 pc(s)	1 pc(s)
Quick start guide	Yes	Yes

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.