Yealink EXP40

For SIP T46S and SIP T48S IP phones

(160 x 320)
Black and white screen
20 physical keys
2 control keys for fast switching pages

Yealink SIP-T42S

2.7″ (192 x 64)
Black and white screen
6 line keys up to 15 features

Yealink SIP-T46S

4.3″ (480 x 272) 
Color screen
10 line keys up to 27 functions

Yealink SIP-T48S

7″ (800 x 480) 
Color screen
11 line keys up to 29 functions