4 SIP accounts
6 line display for features and for CID/dialled number*
HD Voice (G.722)
500 entry phonebook
3-way conference call support
Compatible with Asterisk and Broadsoft
2 x 10/100M ports, PoE
Low standby power consumption
XML Application Interface
24 Feature keys / BLF keys
Electronic hook switch (Plantronics)
Plug and Play configuration
Ergonomic recessed button
Cable concealing back
Long handset cords
Non-slip rubber feet
Changeable angle stand
Wall mounting
* 3 line display for the KX-UT133.