The Yealink SIP-T53 is an easy-to-use Prime Business Phone with an adjustable 3.7-inch graphical LCD that you can easily and flexibly find the comfortable viewing angle according to the personal and environmental needs.
Adjustable 3.7" color display
21 BLF keys ( 3 page view)
up to 3 Yealink EXP50-expansion modules 60 keys (3 page view)
NCTI Standard & Premium (Q3/2019)