YEALINK T57W Prime Business Phone 7″ (800 x 480) adjustable color touch screen29 touch keysUp to 16 VoIP accounts10-ways conferencingBluetooth & Wi-fiUSB 2.0 portHeadset portEXP50 : expansion module supportedPoE 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)
