User Friendly Graphical Menu with Help description

 POE Enabled (X3SP)

 Handset (HS) / Hands-free (HF) / Headphone (HP) mode

 Desktop / Wall-mount installation

 External Power Supply (X3S)

 Economical and Environmental friendly package

 Industrial Standard Certifications: CE/FCC

 Call out / answer / reject

 Mute / Unmute (microphone)

 Call Hold / Resume

 Call Waiting

 Intercom

 Caller ID Display

 Call Forwarding (Always/Busy/No Answer)

 Call Transfer (Attended/Unattended)

 Call Parking/Pick-up (depending on server)

 Redial

 Do-Not-Disturb (per line / per phone)

 Auto-Answering (per line)

 Voice Message (on server)

 Local 3-way Conference

 Hot Line

 Initialization Configuration Wizard

 Up to 5 User Accounts / Profiles with individual phonebook/call log/configurations/PIN

 Phone Accessibility Control by User PIN

 Intelligent Phonebook (up to 500 entries total)

 Cloud Phonebook (XML)

 Intelligent Contact Number Matching / Filtering

 Call log (300 entries total, in/out/missed)

 Call Connection Quality (QoS) Measurement and Indication

 Voice Message Waiting Indication (VMWI) 

 Network Time Synchronization

 HD Voice Microphone/Speaker (Handset/Hands-free, 0 ~ 7KHz Frequency Response)

 Wideband ADC/DAC 16KHz Sampling

 Narrowband CODEC: G.711a/u, G.723.1, G.726-32K, G.729AB

 Wideband CODEC: G.722

 Full-duplex Acoustic Echo Canceller (AEC) – Hands-free Mode, 96ms tail-length

 Voice Activity Detection (VAD) / Comfort Noise Generation (CNG) / Background Noise Estimation (BNE) / Noise Reduction (NR)

 Packet Loss Concealment (PLC)

 Dynamic Adaptive Jitter Buffer up to 300ms

 DTMF: In-band, Out-of-Band – DTMF-Relay(RFC2833) / SIP INFO Networking

 Physical: 10/100Mbps Ethernet, dual bridged port for PC bypass

 IP Configuration: Static / DHCP / PPPoE

 Network Access Control: 802.1x

 VPN: L2TP (Basic Unencrypted) / OpenVPN

 VLAN

 QoS

 SIP2.0 over UDP/TCP/TLS

 RTP/RTCP/SRTP

 STUN

 DHCP

 PPPoE

 802.1x

 L2TP (Basic Unencrypted)

 OpenVPN

 SNTP

 FTP/TFTP

 HTTP/HTTPS

 TR069

RFCs:

354/1321/1350/1769/1889/1890/2131/2132/2616/ 2617/2661/2833/2976/3261/3262/3263/3264/3265/ 3268/3311/3489/3711/4346/4566/5630/5865

 Auto-Provisioning via FTP/TFTP/HTTP/HTTPS/DHCP OPT66/SIP PNP/TR069

 Web Management Portal

 Web-based Packet Dump

 Configuration Backup/Restore

 Auto/Manual Online Software Upgrade

 Syslog

 LCD x1: 128x48 dot-matrix with backlit

 Keypad: 25 keys, including

      4 Soft-keys

      12 Standard Phone Digits keys

      2 Navigation keys (Up/Down)

      2 Line keys with tri-color LED

      1 Redial / Call Log Key

      3 Volume Control keys, Up/Down/Mute(Microphone)

      1 Hands-free / Headphone key

 HD Hands-free Speaker (0 ~ 7KHz) x1

 HD Hands-free Microphone (0 ~ 7KHz) x1

 HD Handset (RJ9) x1

 Standard RJ9 Handset Wire x1

 1.5M CAT5 Ethernet Cable x1

 RJ9 Phone Jacket x2: Handset x1, Headphone x1

 RJ45 Ethernet Jacket x2: Network x1 (802.3AF POE Class 1 Enabled, X3P only), PC x1 (Bridged to Network)

 Main Chipset: Broadcom

 DC Power Input: 5V/1A

 Power Consumption: Idle – ~ 1.1W, Peak – ~ 1.8W

 Working Temperature: 0 ~ 40℃

 Working Humidity: 10 ~ 65%

 Dual-Functional Back Rack x1: Desktop Stand / Wall-mount

 Color: Black (K) / White (W) / Red (R) / Blue (B) / Yellow (Y)

 Package Dimensions: 275x215x62mm(W x H x L)