Feature
2.4-inch 320x240 pixel color screen, Support audio codec G.722 and Opus, HD audio on speakerphone and handset, Support 6-way audio conference, Support EHS wireless headset, Dual 10/100 Mbps ports, integrated PoE(only X303P), Two installation methods of desktop stand and wall mountable.
Others
Generic: (4 SIP Lines, HD Voice, PoE Enabled (only X303P), 2.4-inch color screen, Handset / Hands-free / Headset mode, Desktop Stand / Wall mountable (optional), Optional External Power Supply), Phone Functions: (Local Phonebook (1000 entries), Remote Phonebook (XML/LDAP, 1000 entries), Call logs (In/Out/Missed, 600 entries), Blocked List/Allowed List, Screen saver, Voice Message Waiting Indication (VMWI), Programmable DSS/Soft keys, Network Time Synchronization, Support Poly wireless headset (Through Poly APD-80 EHS Cable), Support Jabra wireless headset (Through Fanvil EHS20 EHS Cable), Support Recording (Through Server), Action URL / Active URI, uaCSTA), Call Functions: (Call out / Answer / Reject, DTMF: In-band, Out-of-Band (RFC2833/ SIP INFO), VQM voice quality monitoring, Mute / Unmute (Microphone), Call Hold / Resume, Call Waiting, Intercom, Caller ID Display, Speed Dial, Anonymous Call (Hide Caller ID), Call Forward (Always/Busy/No Answer), Call Transfer (Attended/Unattended), Call Parking/Pick-up (Depending on server), Redial, Do-Not-Disturb, Auto-Answering, Voice Message (On server), 6-way Audio Conference, Hot Line, Hot Desking), Network: ( Physical: 10/100 Mbps Ethernet, dual bridged port for PC bypass, IP Mode: IPv4/IPv6/IPv4&IPv6, IP Configuration: Static IP / DHCP / PPPoE, Network Access Control: 802.1x, VPN: L2TP / OpenVPN, VLAN, LLDP, QoS, RTCP-XR (RFC3611), VQ-RTCPXR (RFC6035)), Deployment & Management: (Auto-Provisioning via FTP/TFTP/HTTP/HTTPS/DHCP OPT66/SIP PNP/TR-069, Web Management Portal, Web-based Packet Dump, Configuration Export / Import, Phonebook Import/Export, Firmware Upgrade, Syslog), Audio: (Wideband ADC/DAC 16KHz Sampling Narrowband Codec: G.711a/u, G.723.1, G.726, G.729A/B, iLBC, Wideband Codec: G.722, Opus, Full-duplex Acoustic Echo Canceller (AEC), Voice Activity Detection (VAD) / Comfort Noise Generation (CNG) / Background Noise Estimation (BNE) / Noise Reduction (NR) / Automatic Gain Control (AGC), Packet Loss Concealment (PLC), Dynamic Adaptive Jitter Buffer).