YEALINK T57W Prime Business Phone 7″ (800 x 480) adjustable color touchscreen 29 touch keys Up to 16 VoIP accounts 10-ways conferencing Bluetooth & Wi-fi USB 2.0 port Headset port EXP50 : expansion module supported PoE support assignmentDatasheets↪ Yealink T57W Datasheet (EN) ↪ Yealink T57W Datasheet (FR)↪ Yealink T57W Datasheet (DE) library_booksUser guides↪ Yealink T57W User Guide (EN)↪ Yealink T57W User Guide (FR)↪ Yealink T57W User Guide (DE)
