Compare

Announcements, Built in Conference Bridge/Service, Calling Queues (ACD/IVR), Dictation, Directory, Fax to Email, Feature Rich User Control Panel – Visual Voicemail, Flexible Time Based Call Routing, Follow Me/ Find Me Calling, Hunt/Ring Groups, Music On Hold, Personal IVRs, Secure Communications (SRTP/TLS), Support for Video Calling, Voice Mail Blasting, Wake Up Calls

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Call Forwarding, Call History – Call Detail Records and Call Event Logging, Call Recording, Call Screening, Call Transfer, Call Waiting, Caller Blacklisting, Caller ID, DISA, Do Not Disturb, Paging/Intercom, Speed Dials, Three Way Calling, Voice Mail – Voicemail to Email

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Open Standards Support for Multiple Signaling Protocols: SIP, IAX2, PRI/T1/E1, POTS/Analog, ISDN, Soft Phone Support, Specialty Device Support – Door Phones, Overhead Paging, Strobe Alerts, Paging Gateways, Voice Gateways, Failover Devices, WebRTC – Browser Based Calling (thru UCP)

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Bulk Import Utilities (Trunks, Extensions, Users, Phone Numbers), Integrated Intrusion Detection, System Dashboards

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User Control Panel (UCP)

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Sangoma

Sangoma

Fanvil

Fanvil

Fanvil

Atcom

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1 Port, 2 Port, 4 Port, 8 Port, 16 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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25 Years from Manufacturer

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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

2 LCDs (Main + DSS), 6 SIP Lines, Action URL / Active URI, Black/White List Call Filtering, Call log (100 entries, in/out/missed), Network Time Synchronization, Phonebook (500 entries), Programmable DSS/Soft keys, Remote Phonebook (XML/LDAP), Voice Message Waiting Indication (VMWI)

3.2″ TFT LCD, 4 SIP accounts, 462*278 Pixel, Auto Answer, Black list, Call Center Headsets mode, Call forward, call waiting, call transfer, Call Hold, Caller ID, Dialed/Received/Missed call (each 200), Direct IP call without SIP proxy, Hot Line, Local 3-Way Conferencing, Local Phonebook (upto 1000 entries), Mute,DND, Redial, Speed Dial, Voice Mail, White list

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N/A

N/A

Anonymous Call (Hide Caller ID), Auto-Answering (per line), Call Forwarding (Always/Busy/No Answer), Call Hold / Resume, Call out / answer / reject, Call Parking/Pick-up (depending on server), Call Transfer (Attended/Unattended), Call Waiting, Caller ID Display, Do-Not-Disturb (per line / per phone), Hot Line, Hot-Desking, Intercom, Local 3-way Conference, Mute / Unmute (microphone), Redial/Auto-Redial, Speed Dial, Voice Message (on server)

Anonymous call, anonymous call rejection, Call Conference, Call park, call pickup, Call Recording, DND&Call forward state synchronization, Group pickup, Intercom, paging, Music on hold

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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

DSS Key-mapping LCD x1:color-screen LCD, HD Hands-free Microphone (0 ~ 7KHz) x1, HD Hands-free Speaker (0 ~ 7KHz) x1, HD Handset (RJ9) x1, Keypad: 38 keys, Main Chipset: Broadcom, Main LCD x1: 2.8 inch (320×240) color-screen LCD, RJ45 Ethernet Jacket x2: Network x1 (802.3AF POE Class 2 Enabled), PC x1 (Bridged to Network), RJ9 Phone Jacket x2: Handset x1, Headphone x1

3.2″ 462 x 278-pixel TFT LCD, Dual Gigabit Ethernet Port, PoE, WiFi, Up to 4 SIP accounts,3-way conference,Connected with up to 2x TFT LCD expansion modules (RET/AET)

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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

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, Packet Loss Concealment (PLC), Voice Activity Detection (VAD) / Comfort Noise Generation (CNG) / Background Noise Estimation (BNE) / Noise Reduction (NR), Wideband ADC/DAC 16KHz Sampling, Wideband CODEC: G.722

2 custom ring tone article, 8 own ring tone, 8 volume adjustable + Mute mode, Acoustic Echo Cancellation (AEC), Adaptive Jitter Buffer (AJB), Auto Gain Control (AGC), Comfort Noise Generation (CNG), Full-duplex hands-free speakerphone with AEC (Acoustic Echo Cancellation), Narrowband CODEC: G.711a/u, G.723.1, G.726-32K, G.729AB, Packet Loss Concealment (PLC), Voice Activity Detection (VAD), Wideband codec: G.722, L16,

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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

IP Configuration: Static / DHCP / PPPoE, Network Access Control: 802.1x, Physical: 10/100Mbps(X5), 10/100/ 1000Mbps(X5G) Ethernet, dual bridged port for PC bypass, QoS, VLAN, VPN: L2TP (Basic Unencrypted) / OpenVPN

AES encryption for configuration file, and P2P mode, Digest authentication using MD5/MD5-sess, DTMF: In-band, HTTP / HTTPS web server, IEEE802.1X, LAN / PC: support bridge mode, LLDP, NAT transverse: STUN mode, Open VPN support, Package tracing export, Phone lock, RFC2833, SIP connection mode: Proxy mode, SIP INFO, Support DNS SRV (RFC3263), Support QoS, Syslog, TLS, User and administrator level access control, VLAN