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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)

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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)

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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

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Codec:G.711A/u, G.7231 high/low,G.729a/b, G.722,G.726, Comfort Noise Generation (CNG), DTMF: In-band, Out-of-band(RFC 2833) and SIP INFO, Echo Cancellation(G.168), HD voice ( HD handset, HD speaker), Voice Activity Detection (VAD)

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Firewall, openVPN, Network Access Control: 802.1x, QoS, Support DHCP client on WAN, Support DHCP server on LAN, VLAN, VPN: L2TP (Basic Unencrypted) / OpenVPN

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Fanvil

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Yealink

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Adjustable Headband, Dual earpiece headband with bigger size, Durable, light weight, rigid, Easily Repairable ( with full parts available ), Flexible Plastic Mic Boom for clear transmission, For USB Jack, Headsets for Dialers and Soft Phones, Soft leatherette ear cushions for all day comfort

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Easily Repairable ( with full parts available ), Impedance : 32-150 ohms, Leatherette ear cushions available., Optional Quick Disconnect Jack, Plastic and Rubber MIC Boom Assembly for clear transmission, SPL (at 1 kHz, 1 Vrms) : 100 dB, Stay-put click-stop headband for a perfect fit.

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Frequency Response : 80 ~ 6500Hz, Impedance : 2.5 K Ohms, Pick up Pattern : Noise Cancelling, Type : Bidirectional

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SIP-T46S

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3 Lines (Support 3 SIP accounts), Support Call Waiting, Call Forward, Call Transfer, Call on Hold, Mute, Auto-answer, Redial, DND, Local 3-Way Conference, Volume Adjustable, Ring tones Selectable, Speed Dial, Hotline, Daylight Saving Time, Network Packet Capture, Country Ringtone Signal, Direct IP call, Auto Redial, Call Return, Dial Plan, XML Browser, Hot Desking, Keypad Lock, Action URL/URI, Phonebook (500 groups), Blacklist (100 groups),Call logs (100 entries), 5 Remote Phone Book URL Supported, LDAP, Multi-Language Support

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SIP RFC3261, TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS (A record, SRV, NAPTR), DHCP, PPPoE, SSH, TFTP, NTP, STUN, SIMPLE, LLDPMED, LDAP, TR-069, 802.1x, TLS, SRTP

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SIP v1 (RFC2543), v2 (RFC3261) Call server redundancy supported NAT traversal: STUN mode Proxy mode and peer-to-peer SIP link mode IP assignment: static/DHCP/PPPoE HTTP/HTTPS web server
Time and date synchronization using SNTP UDP/TCP/DNS-SRV(RFC 3263) QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS DSCP
SRTP for voice Transport Layer Security (TLS) HTTPS certificate manager AES encryption for configuration file Digest authentication using MD5/MD5-sess OpenVPN, IEEE802.1X
IPv6, LLDP/CDP/DHCP VLAN, ICE

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10 line keys with LED 10 line keys can be programmed up to 27 paperless DSS keys (3-page view)7 features keys: message, headset, hold, mute, transfer, redial, hands-free speakerphone 4 context-sensitive “soft” keys 6 navigation keys Volume control keys Illuminated mute key Illuminated headset key Illuminated hands-free speakerphone key

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Support for G.711µ/a, G.722 (wide-band), G.723 (pending), G.726-32, G.729 A/B, in-band and out-of-band DTMF (In audio, RFC2833, SIP INFO)

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English, German, Italian, French, Spanish, Portuguese, Russian, Croatian, simplified and traditional Chinese, Korean, Japanese and more

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FCC: Part 15 (CFR 47) Class BCE : EN55022 Class B, EN55024, EN61000-3-2, EN61000-3-3, EN60950-1RCM: AS/ACIF S004; AS/NZS CISPR22/24; AS/NZS 60950; AS/NZS 60950.1