Index >>> VoIP Phone >>>  Model: CS-820
   
       CS-820 IP phone is an internet based voice network phone terminal. PHONE series IP phone adopts multiple voice control protocols and voice compression coding methods to directly convert analog voice into IP packet for internet transport, thus effectively using the existing bandwidth to provide PSTN quality voice service.
     CS-820 IP phone supports SIP protocols,Support Bridge and Router model. offers Two Ethernet interface and is compatible with various softswitch systems and VoIP voice gateways to provide broadband IP voice service..

 

Big picture    Packing

User's Manual       Firmware

       

 
                Features

  • Supported specification and applications
    data networking:
    MAC Address
    TCP: Transmission Control Protocol
    DHCP: Dynamic Host Configuration Protocol
    PPPoE: PPP Protocol over Ethernet
    SNTP, Simple Network Time Protocol
    STUN - Simple Traversal of User Datagram ...
    MD5 Message-Digest Algorithm
    TOS:Type of service   
    QoS: Quality of service control option 
    DNS: Domain Name Server      
    Support Bridge and Router model
    RTP: Real-time Transport Protocol
    RTCP: Real-time Control Protocol
    Telnet:I nternet's remote login protocol
    HTTP: Hyper Text Transfer protocol
    FTP: File Transfer protocol
    TFTP: Trivial File Transfer Protocol
    call control /voip Features
    SIP RFC3261
    Tone generation and Local DTMF re-generation according with ITU-T
    voice algorithms
    G.711(A-law or u-law)
    G.723.1(6.3kbps,5.3 kbps, high/low)
    G729,G.726
    AGC(Auto Gain Control)
    G.168/165 compliant 16ms echo cancellation
    AEC(Auto Echo Cancellation)
    VAD (Voice Activity Detection)
    CNG(Comfort Noise Generation)

  • Key features
    voice Features
    call hold
    Unattended/ attended call transfer
    call waiting and per call-waiting blocking
    call forward (Always, busy, no answer, power off)
    voip speed dial
    VoIP digital map
    user define ring tone
    E.164 dial plan and customize dial rules
    caller number/name display
    MWI(Message wait Indication)
    voice promote
    configurable jitter buffer size
    configurable audio frame 
    Support Bridge and Router model

  • data features
    Static/Dynamic WAN-IP-Addressing
    PPPoE
                Management and setting

  • http, telnet, keypad and dedicate manage tool

  • adjustable user password and super password

  • URL based FTP,HTTP and TFTP auto provision

  • Configure file download and upload 

  • support four settings storage, switch by keypad

  • safe mode provide reliability 

  • four servers store and load by keypad

  • 80 entries each for missed calls, answered calls and dialed calls

  • 100 entries for speed dial number

  • Multiply Language support 
                Interfaces

  • Ethernet Jack ---2 X RJ45 connector (WAN port+ LAN port)

  • Power port --- 1 X 12V, 0.8A power
                Enviromental

  • Electric requirements:
    Voltage: 5V ~ 24V
    Power adapter: output DC 12V/800 mA

  • Operating requirement:
    Operation temperature: 0 to 40¡ã C ( 32¡ã to 104¡ãF)
    Storage temperature: -30¡ã to 65¡ã C (-22¡ã to 149¡ãF)
    Humidity: 10 to 90% no dew
                 Packing Info

             Package: gift box ; 1set/box;  10sets/carton
             Dimension(box):300*235*75mm
             Dimension(carton):498¡Á410¡Á345mm
             G.W.:13kg/carton

English language version / Chinese language version