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             Network Features 
            SIP v1(RFC2543), v2(RFC3261) 
            NAT transverse: STUN mode 
            IP Assignment: Static/DHCP/PPPoE 
            In-Band DTMF, Out-of-Band DTMF, SIP  Info Proxy mode and Peer-to-peer SIP link  mode 
            TFTP/DHCP/PPPoE client 
            Telnet/HTTP server 
            DNS client 
            NAT/DHCP server 
            Support VLAN, QoS 
            PoE optional 
            Voice Features 
            Wideband Codec: G.722, voice spectrum between 50-7000Hz 
            Narrowband Codecs: G.711, G.726, G.723.1/iLBC, G.729AB and GSM VAD, CNG, AEC, PLC, AJB, AGC 
            Full-duplex hands-free speakerphone 
            -compliant with IEEE 1329 support Hearing Aid Compatible (HAC) 
            Security 
            Secure RTP 
            Digest authentication using MD5/MD5- sess 
            Secure configuration file via AES  encryption 
            Telephony Features 
            Call Hold, Call Waiting, Call Transfer, Call  Forward 
            Caller ID, Call List, DND, Redial, Flash 
            3-way Conference, Speed Dial 
            Personal Ring Tone, 
            Voicemail 
            Volume Adjustment, Mute, 
            Speakerphone 
            Logo Customization, Black List, Phone  Lock 
            Admin/User Configuration Mode 
            Contact List Export/Import 
            System Log Export/Import 
            Hotline, Signal Tone Settable 
            Multi-language 
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             IP PBX System Integration 
            SMS, BLF/BLA, Paging, Intercom 
            Downloadable enterprise phonebook 
            Call Park, Call Pickup, 
            Distinctive  Ringtone 
            Auto-answer, Dial Plan, Dial-now 
            Config, Upgrade and Usage 
            Firmware Upgrade: TFTP/Console/Autoprovision 
            Auto-provision: TR069 Optional 
            Direct IP call without SIP proxy 
            Dial number via SIP server 
            Dial URL via SIP server 
            Physical Features 
            TI Titan Chipset 
            LCD: White backlit 320x160 
            4-level grayscales 
            16 DSS Keys, 
            4 soft keys 
            Network Interface: 2xRJ45 10/100M  ports 
            Headset port: RJ9 
            Expension Module Port 
            Speaker: 8 Ohm/1 Watt 
            Dimension: 310 x 290 x 110 mm 
            Weight: 1.6 kg 
            Power adapter: Input: AC 100~240V 
            Output: DC 5V/1A 
            Operating humidity: 10~95% 
            Storage temperature: up to 60 C 
            Certifications 
            WEEE 
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