• DECT IP Multi-Cell DECT Manager • DECT technology • Air sync and LAN sync • Up to 60 base stations • Up to 250 handsets • Up to 250 SIP accounts • Up to 250 parallel calls • Support LDAP/Remote Phonebook/XML Phonebook/XSI • Directory • Compatible with Yealink • W56H/W53H/W59R/CP930W/T41S+DD10K without PSU •