Technical Specification
                            
                    Network Interfaces
                    Dual switched auto-sensing 10/100/1000 Mbps Gigabit Ethernet ports with
integrated PoE
                 
                            
                    Graphic Display
                    2.8 inch (320x240) TFT color LCD
                 
                            
                    Bluetooth
                    Yes, Bluetooth V2.1
                 
                            
                    Feature Keys
                    3 line keys with up to 3 SIP accounts, 8 speed-dial/BLF extension keys with dual-color LED, 4 programmable context sensitive softkeys, 5 navigation/menu keys, 11
dedicated function keys for: MESSAGE (with LED indicator)
                 
                            
                    Voice Codecs
                    Support for G.729A/B, G.711ยต/a-law, G.726, G.722 (wide-band), G723.1, iLBC, Opus,
in-band and out-of-band DTMF (in audio, RFC2833, SIP INFO), VAD, CNG, AEC, PLC,
AJB, AGC
                 
                            
                    Auxiliary Ports
                    RJ9 headset jack (allowing EHS with Plantronics headsets)
                 
                            
                    Telephony Features
                    Hold, transfer, forward, 4-way audio conference, call park, call pickup,
shared-call-appearance (SCA)/bridged-line-appearance (BLA), downloadable
phonebook (XML, LDAP, up to 2000 items), call waiting, call log (up to 500 records)
                 
                            
                    Base Stand/Wall Mountable
                    Yes, allow 2 angle positions
                 
                            
                    QoS
                    Layer 2 (802.1Q, 802.1p) and Layer 3 (ToS, DiffServ, MPLS) QoS
                 
                            
                    Security
                    User and administrator level passwords, MD5 and MD5-sess based authentication,
AES based secure configuration file, SRTP, TLS, 802.1x media access control
                 
                            
                    Power
                    Universal power adapter included: Input: 100-240VAC; Output: +12VDC, 0.5A (6W)
Integrated PoE (Power-over-Ethernet) 802.3af, Class 2
                 
                            
                    Protocols/Standards
                    SIP RFC3261, TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS (A record, SRV,
NAPTR), DHCP, PPPoE, SSH, TELNET, TFTP, NTP, STUN, SIMPLE, LLDP, LDAP, TR-069,
802.1x, TLS, SRTP, IPv6, CDP/SNMP/RTCP-XR