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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

1x SIP account, 5-way conferencing, Action URL/URI, Call forward, call waiting, call transfer, Custom ring tones / provisioning, Dial plan per account, Direct IP call, One-touch speed dial, hotline, Redial, call return, auto answer, RTCP-XR (RFC3611), VQ-RTCPXR (RFC6035), Set date time automatically or manually

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

Anonymous call, anonymous call rejection, Busy Lamp Field (BLF), Call park, call pickup, Intercom, paging, Message Waiting Indicator, Music on hold, Voicemail

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

128 x 40 pixel graphical LCD, Caller ID with name, number, Illuminated LEDs for line status information, Intuitive user interface with icons and soft keys, LED for call and message waiting indication, National language selection

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

Acoustic Echo Cancellation (AEC), Adaptive Jitter Buffer (AJB), Auto Gain Control (AGC), Codecs (iLBC, G.722, G.711(A/μ), GSM_FR, G.723, G.729AB, G.726 -32), Comfort Noise Generation (CNG), DTMF (In-band, RFC 2833, SIP INFO), Full-duplex hands-free speakerphone with AEC (Acoustic Echo Cancellation), HD voice ( HD handset, HD speaker), Packet Loss Concealment (PLC), Voice Activity Detection (VAD)

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

DHCP / static / PPPoE, Digest authentication using MD5/MD5-sess, DNS-NAPTR/DNS- SRV (RFC 3263), HTTP / HTTPS web server, IEEE802.1X, IPV4 / IPV6, NAT Traversal (STUN mode), Open VPN, QoS ,802.1p/Q tagging (VLAN) , Layer 3 ToS DSCP, SIP server / proxy redundancy, SIP v1, v2, SRTP, Time and date synchronization by SNTP, TLS (Transport Layer Security)

Fanvil

Sangoma

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4 context-sensitive “soft” keys, 6 features keys (Headset, Speaker, Hold, Mute, Transfer, Conference), 6 navigation keys, Volume control keys

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1x RJ9 (4P4C) handset port, Dual-port 10/100 Mbps Ethernet, Power over Ethernet (IEEE 802.3af) (PoE), class 3

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Auto-provision via HTTP / HTTPS, FTP / TFTP, Auto-provision with PnP, Configuration , Browser / LCD-Menu / auto-provision, HD speaker, Logging and log export, Phone lock

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S205