keywords: ip pbx voip gateway gsm gateway


2.8 inch LCD color-screen, 4 SIP accounts,

HD voice, support PoE,

4 Soft-keys, 4 pages/ 28 paperless keys,

One year warranty.


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  • Specifications

    The new C401 color screen IP Phone is a high-end enterprise desktop phone which comes with intelligent LCD the DSS Key-mapping to increase enterprise users’ productivity at a cost-effective price.

    The DSS key-mapping is designed with intelligence to support dynamic usage to substitute expansion modules. There are 7 DSS keys corresponded to the color LCD display to provide dynamic Line/DSS/BLF functions up to four pages at virtualized total 28 DSS keys. User may configure/customize each DSS key in each page. Every DSS key has a LED indication in green, red, and yellow colors to reflect the key state. A page shortcut button is also designed to allow user to quickly switch between pages. C401 is the most economic choice for SMB office and enterprise supervisors.

    C401 inherits all features from enterprise phones, such as HD voice in handset, headset, and full-duplex speakerphone modes, PoE, Fast/Gigabit Ethernet, QoS, secure transmission, auto-provisioning, and more.

    C401 is a great office productivity appliance for enterprise users. The old DSS key label is inconvenient and not environmental friendly. C401’s intelligent LCD the DSS Key-mapping provides users the flexibility to change DSS key definition and display through easy configuration. Meanwhile, with its intelligent design of the DSS key, it can be multiplied as expansion modules to save space and cost. C401 will provide the best user experience to advance enterprise users.”

    In order to help some users who are interested to read every detail of the product, this user manual is provided as a user’s reference guide. Still, the document might not be up to date with the newly release software, so please kindly download updated the latest user manual from website, or contact with support if you have any question using C401.


    Product Specification
      Product Model   C200   C401
    SIP Line 2 lines 4 lines
    Installation Desktop/Wall-mount
    Screen 128 x 48 dot-matrix with backlight 320 x 240 dot-matrix, 2.8 inch LCD color-screen
    Key Pad   31 keys, including:
            12 Standard Phone Digits keys;
            4 Soft-keys;
            4 Navigation keys + 1 OK key;
            1 Hands-free key;
            2 Volume Control keys, Up/Down;
            6 Function keys
      39 keys, including:
            12 Standard Phone Digits keys;
             4 Soft-keys;
             4 Navigation keys + 1 OK key;
             1 Hands-free key;
             2 Volume Control keys, Up/Down;
             6 Function keys
             8 DSS key with tri-color LED;
    Protocols SIP 2.0 over UDP/TCP/TLS, RTP/RTCP/SRTP, STUN, DHCP, PPPoE, 802.1x, L2TP (Basic Unencrypted), OpenVPN, SNTP, FTP/TFTP, HTTP/HTTPS, TR069
    Codec G.711a/u, G.723.1, G.722, G726-32, G.729AB
    Network Interface 1 * 10/100 M (802.3af Class 1 POE); PC*1 (Bridge to ethernet) 1* 10/100/1000M (802.3af Class 2 POE)
    IP Service Static IP, DHCP, VPN, PPPoE, Brigde
    DTMF In-band, Out-of-band- DTMF (RFC2833) / SIP INFO
    Power Supply PoE / Power adapter
    Power Input 5V / 1A
    Power Comsumption Idle: 1.3W, Peak : 4.3W Idle:1.7W , Peak:5.7W
    Operation Environment Temperature: 0~40℃;Humidity: 10~65%
    HD Hands-free Speaker 1 ( 0~7KHz)
    HD Hands-free Microphone 1 ( 0~7KHz)
    HD Handset RJ9 1 (with Standard RJ9 handset wire)
    1.5M CAT5 cable 1
    Phonebook 500 entries
    Call Log 600 entries
    Cloud Phonebook XML/LDAP
    Packing Dimensions 260x255x62mm (L x W x H)
  • Features


    • HD Voice microphone/speaker (handset/hands-ree,0~7KHz frequency response)
    • Handset(HS) / Hands-free(HF) / Headphone (HP) mode (EHS support for Plantronics headsets)
    • POE
    • Desktop/Wall-mount installation

    Call Features

    • Call out/answer/reject
    • Mute/Unmute
    • Call hold/resume
    • Call Waiting
    • Intercom
    • Caller ID Display
    • Call Forwarding (Always/Busy/No Answer)
    • Blind / Attended Call Transfer
    • Call Parking / Pick-up
    • Redial/ Auto-Redial
    • DND(per line / per phone)
    • Auto-Answering (per line / per phone)
    • 3-way Conference
    • Hot Line

    Phone Features

    • Phonebook (500entries)
    • Cloud Phonebook
    • Call log(in/out/missed)
    • Blacklist、Whitelist
    • Message Waiting Indication(VMWI)
    • Programmable Soft keys
    • Network Time Synchronization
    • Action URL / Active URI


    • Network Access Control:802.1x
    • IP Configuration: Static/ DHCP/ PPPoE
    • VPN:L2TP/OpenVPN
    • VLAN
    • QoS


    • CE


    • Codec:G.711a/u, G.723.1, G.722, G.726-32, G.729AB
    • Full-duplex Acoustic Echo Canceller(AEC)
    • Voice Activity Detection(VAD)
    • Comfort Noise Genration(CNG)
    • Background Noise Estimation(BNE)
    • Noise Reduction(NR)
    • Packet loss concealment(PLC)
    • Dynamic Adaptive Jitter Buffer up to 300ms
    • DTMF:In-band, Out-of-band —DTMF
      -Relay(RFC2833) / SIP INFO


    • SIP2.0 over UDP/TCP/TLS
    • STUN
    • DHCP
    • PPPoE
    • 802.1x
    • L2TP(Basic Unencrypted)
    • OpenVPN
    • SNTP
    • FTP/TFTP
    • TR069


    • 354/1321/1350/1769/1889/1890/ 2131/2132/2616/2617/2661/2833/ 2976/3261/3262/3263/3264/3265/ 3268/3311/3489/3711/4346/4566/ 5630/586

    Deployment & Maintanance

    • Auto-Provisioning via FTP/TFTP/HTTP/HTTPS/DHCP OPT66/SIP PNP/TR069
    • Web Management Portal
    • Web-based Packet-dump
    • Configuration Import/Export
    • Phonebook Import/Export
    • Firmware Upgrade
    • syslog



  • Use Cases