6 SIP accounts, 2.7" LCD screen of 192x64 pixels with backlight. Hands-free speaker full duplex. Agenda: 300 records. HD sound. RJ9 headphone jack. 3 programmable keys Mute key Keypad lock Volume Settings. Downloadable calendar (XML, LDAP, up to 300 contacts) and ring tones. Customization via XML of the screen. Call waiting, diversion, transfer, call rejection. Voicemail, speed dials, Flash, volume adjustment, ringer selection. Multi language, with support for Spanish. Intercom functions. Wall mounting possible. Supports Busy Lamp Field (BLF) and Shared Bridged Line Appearance (BLA) keys. PoE, or optional power supply.