Yealink T40G
3 physical line keys
2.3″ 132×64 LCD
Gigabit Ethernet switch
T42S is also an option, the only difference is it has 6 physical line keys instead of 3. Click here to check eBay prices on the T42S
Yealink T53
8 physical line keys
3.7″ 360×160 backlit LCD
Gigabit Ethernet switch
Bluetooth/Wi-Fi can be added by purchasing a USB dongle.
8 line keys can be programmed up to 21 various features (3-page view)
Yealink T54S
10 physical line keys
4.3″ 480×272 color LCD
Gigabit Ethernet switch
Bluetooth and Wi-Fi
10 line keys can be programmed up to 27 various features (3-page view)
Yealink T46
10 line keys with LED
4.3″ 480×272 color display
Gigabit Ethernet switch
10 line keys can be programmed up to 27 paperless
DSS keys (3-page view)
Yealink T48
29 onscreen shortcut keys
7″ 800×480 touch screen
Gigabit Ethernet switch
Yealink T57W
29 onscreen shortcut keys
7″ 800×480 touch screen
Gigabit Ethernet switch
