Compare

1 Port, 2 Port, 4 Port, 8 Port

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No, Yes

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Yes

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Yes

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Yes

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Yes

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Asterisk, Elastix, FreeBPX, FreeSWITCH, IP BRICK, trixbox, YATE

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YES

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Euro ISDN, Network or CPE, AT&T 4ESS, CAS Voice Modes

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5 Years From Manufacturer

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Allo

Fanvil

Fanvil

Fanvil

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2x SIP accounts, 5-way conferencing, Call forward, call waiting, call transfer, Call log (300 entries total, in/out/missed), Call out / answer / reject, Caller ID Display, Desktop / Wall-mount installation, Economical and Environmental friendly package, Handset(HS) / Hands-free(HF) / Headphone(HP) mode (EHS support for Plantronics headsets), HD Voice, Industrial Standard Certifications: CE/FCC, Intercom, Mute / unmute (microphone), POE Enabled(X3SP/X3G), Redial, call return, auto answer

2x SIP accounts, 3 way conference, Call forward, call waiting, call transfer, Call log (300 entries total, in/out/missed), Call out / answer / reject, Caller ID Display, Desktop / Wall-mount installation, Economical and Environmental friendly package, Handset(HS) / Hands-free(HF) / Headphone(HP) mode (EHS support for Plantronics headsets), HD Voice, Industrial Standard Certifications: CE/FCC, Intercom, Mute / unmute (microphone), Redial, call return, auto answer, Support Phonebook 500 records

Android 4.2 OS, Supports 6 SIP servers and Backup SIP proxy servers., Supports Acoustic echo cancellation (AEC) – 128ms max filter length in duplex speaker phone mode, Supports HDMI, Supports high quality video call, Supports PLC & adaptive jitter buffer, Supports SIP 2.0 (RFC3261) and correlative RFCs, Supports SIP UDP/TCP/TLS, Supports USB Host

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N/A

N/A

Auto Answer (Hands- free / Headset), Auto Redial / un-redial, Barring function for outgoing calls, Black List, BLF List, Call Completion, Call Conference, Call Forwarding, Call Holding, Call Rejection, Call Transfer (blind/attended/alert), Call Waiting, Caller ID Display, Capable of 10 way conversation, Dial without registration, Direct IP call without SIP proxy, Do Not Disturb, Flexible dial plan, Headset ring, Hot desk function, Hotline/Warm-line, Intercom/Intercom barge, Join Call, Password dial, Pickup, Soft DSS Key (Upto 100), Support messaging and MWI, Support multi line and pre-dial, Supports Call Logs with Missed / Incoming / Outgoing calls, Voice recording during talking /local

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Dual-Functional Back Rack x1: Desktop Stand / Wall-mount, HD Hands-free Microphone (0 ~ 7KHz) x1, HD Hands-free Speaker (0 ~ 7KHz) x1, HD Handset (RJ9) x1, Keypad: 32 keys, including 4 Soft-keys 12 Standard Phone Digits keys 5 Navigation keys 2 Line keys with tri-color LED 5 Function key 3 Volume Control keys, Up/Down/Mute(Microphone) 1 Hands-free, LCD x1: 2.4/2.8 inch (320×240) color-screen LCD, Standard RJ9 Handset Wire x1

Dual-Functional Back Rack x1: Desktop Stand / Wall-mount, HD Hands-free Microphone (0 ~ 7KHz) x1, HD Hands-free Speaker (0 ~ 7KHz) x1, HD Handset (RJ9) x1, Keypad: 32 keys, including 4 Soft-keys 12 Standard Phone Digits keys 5 Navigation keys 2 Line keys with tri-color LED 5 Function key 3 Volume Control keys, Up/Down/Mute(Microphone) 1 Hands-free, LCD x1: 2.4/2.8 inch (320×240) color-screen LCD, Standard RJ9 Handset Wire x1

Bandwidth selection: 64kbps~4Mbps, Camera- Adjustable Position, Frame rate selection: 10~30fps, Image codec: JPEG/PNG/BMP/GIF, LCD Size Diagonal:7 inch (800 x 480) Capacitive touch screen, SD Interface – TF Card Support Upto 32G, Supports up to 4 video display mode, Video call resolution: QCIF / CIF / VGA / 4CIF (1280x720P Optional), Video codec: H.264 / H.263, Video format: MP4/3GP/FLV

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DTMF: In-band, Out-of-Band – DTMF-Relay (RFC2833) / SIP INFO, Dynamic Adaptive Jitter Buffer up to 300ms, Full-duplex Acoustic Echo Canceller (AEC) – Hands-free Mode, 96ms tail-length, HD Voice Microphone/Speaker (Handset/Hands-free, 0~7KHz Frequency Response), Narrowband CODEC: G.711a/u, G.723.1, G.726-32K, G.729AB, Voice Activity Detection (VAD) / Comfort Noise Generation (CNG) / Background Noise Estimation (BNE) / Noise Reduction (NR), Wideband ADC/DAC 16KHz Sampling, Wideband CODEC: G.722

DTMF: In-band, Out-of-Band – DTMF-Relay (RFC2833) / SIP INFO, Dynamic Adaptive Jitter Buffer up to 300ms, Full-duplex Acoustic Echo Canceller (AEC) – Hands-free Mode, 96ms tail-length, HD Voice Microphone/Speaker (Handset/Hands-free, 0~7KHz Frequency Response), Narrowband CODEC: G.711a/u, G.723.1, G.726-32K, G.729AB, Voice Activity Detection (VAD) / Comfort Noise Generation (CNG) / Background Noise Estimation (BNE) / Noise Reduction (NR), Wideband ADC/DAC 16KHz Sampling, Wideband CODEC: G.722

Adaptive Jitter Buffer (AJB), Audio format: WAV/MP3/OGG, Comfort Noise Generation(CNG), DTMF: In-band, Out-of-Band – DTMF-Relay (RFC2833) / SIP INFO, Full-duplex hands-free speaker phone with AEC (Max filter length – 128ms), Narrowband codec: G.711(A/μ), G.723.1, G.729AB, iLBC, AMR, Packet Loss Concealment (PLC), Voice Activity Detection (VAD), Wideband CODEC: G.722

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IP Configuration: Static / DHCP / PPPoE, Network Access Control: 802.1x, Physical: 10/100Mbps(X3S/X3SP), 10/100/1000Mbps(X3G) Ethernet, dual bridged port for PC bypass, 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, VLAN, VPN: L2TP (Basic Unencrypted) / OpenVPN

IP Configuration: Static / DHCP / PPPoE, Network Access Control: 802.1x, Physical: 10/100Mbps(X3S/X3SP), 10/100/1000Mbps(X3G) Ethernet, dual bridged port for PC bypass, 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, VLAN, VPN: L2TP (Basic Unencrypted) / OpenVPN

DHCP/ static/ PPPoE, STUN, Supports main DNS and secondary DNS server, Supports MD5 authentication, Supports PoE (802.3af), Supports QoS: 802.1p/q, DSCP, Supports SIP SRTP,, Supports SNTP Client, Supports VLAN, Supports VPN L2TP / PPTP / IPSec, Supports Web Filter, Supports Web HTTP / HTTPS, WAN/LAN: support bridge mode