OpenVox - C401

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. 

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.”
  • About
  • Features
  • Manual

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.

Product Specification
  Product Model   C200   C401
SIP Line 2 lines 4 lines
Installation Desktop/Wall-mount
Screen 128 x 48 dot-matrix with backlight 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)


  • 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