Yealink SIP-T46S Elegant Manager Phone 4.3″ (480 x 272) color screen10 line keys up to 27 functionsUp to 16 SIP accounts3-ways conferencingFull-duplex speakerphoneDual-port Gigabit EthernetEXP40 : expansion module supportedNo power supply assignmentDatasheets↪ Yealink SIP-T46S Datasheet (EN)↪ Yealink SIP-T46S Datasheet (FR)↪ Yealink SIP-T46S Datasheet (DE) library_booksUser guides↪ Yealink SIP-T46S User Guide (EN) ↪ Yealink SIP-T46S User Guide (FR) ↪ Yealink SIP-T46S User Guide (DE)