COMfortel® WS-400 IP

Article number 90148

Professional IP-DECT server with 6 VoIP channels for 12 DECT handsets that can be connected to SIP-based PBX systems. Can optionally be extended to a multi-cell server with 12 VoIP channels and support for up to 30 wireless users (DECT handsets).


  • Delivers high-quality and secure communication throughout the company
  • Optimal availability of employees due to increased site mobility
  • Flexible wireless coverage with up to 4 DECT radio cells (COMfortel® WS-Base)

  • Registration of up to 30 handsets
  • Up to 12 simultaneous voice channels between IP DECT server and the PBX
COMfortel® WS-400 IP
COMfortel® WS-400 IP
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In its basic configuration, as a single-cell server, the COMfortel WS-400 IP DECT server has six VoIP call channels to the PBX system, allowing the connection of up to 12 DECT handsets. If required, the capacity can easily be expanded to 12 VoIP channels, thus enabling the connection of up to 30 DECT handsets. Additionally, this optional software upgrade turns the device into a multi-cell server, enabling the connection of up to three additional IP DECT base stations (COMfortel WS-Base).


Incidentally, the wireless network connecting the individual bases operates with “seamless handover” – users can make uninterrupted phone calls with a DECT handset while moving between the radio cells. Its professional features, such as access to address books provided centrally via LDAP or the cloud, or the scalability from 1 to 4 radio cells and up to 30 mobile users, make the system ideal for small to medium businesses.


To serve more users and cover a larger area or even multiple locations, WS-400 IP can easily be upgraded to a multi-cell solution. The COMfortel WS-400 IP multi-cell server can be extended by up to three additional COMfortel WS-Base DECT bases and, if required, by up to three COMfortel WS-R2/R4 repeaters to extend the range of each base.


The entire IP DECT wireless system consists of several components: the COMfortel WS-400 IP server (including a DECT base station), additional base stations COMfortel WS-Base (multi-cell upgrade), COMfortel WS-R2/R4 repeaters to extend the operating range if necassary, and our COMfortel M-100, M-210 or M-310 DECT handsets.


Features & technical data

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Phone Features

  • Registration of up to 12 wireless users
  • 6 simultaneous voice calls to the PBX
  • Multi-cell operation as an activation option
  • High-quality and secure voice communication
  • Web UI for administration and maintenance of the entire infrastructure

Upgrade Multi-cell System

  • Registration of up tp 30 handsets possible
  • 12 simultaneous voice calls to the PBX
  • Option to extend the radio coverage with 3 additional base stations (COMfortel WS-Base)
  • Seamless Handover – uninterrupted voice calls when roaming between radio cells in a multi-cell environment

Supported communication platforms

  • COMpact 4000
  • COMpact 5000, 5000R
  • COMpact 5200, 5200R
  • COMpact 5500R
  • COMpact 5020 VoIP

Supported DECT handsets

  • COMfortel M-100
  • COMfortel M-210
  • COMfortel M-310

Please note: information depending on the configuration level of the system. For detailed information please refer to the datasheet. Subject to modification.

Technical Highlights
Dimensions Height (mm) 100 / Width (mm) 100 / Depth (mm) 38
Base stations Value integrated a radio base; with multi-cell upgrade up to 3 COMfortel WS-Base can be added (4 radio cells in total)
Operating voltage Voltage (V) / Power over Ethernet (PoE Class 1 device according to IEEE 802.3af) or external power supply unit 8 V (not included)
Operating temperature (°C) minimum 10 / maximum 40
Colour white
Radio channels Max. 11 simultaneous voice channels per radio cell (limited by DECT standard)
Casing material plastic
Weight (g) Phone 120
Handsets Value up to 12 handsets (with multi-cell upgrade up to 30) COMfortel M-100 / M-210 / M-310 connectable
Storage temperature (°C) minimum -50 / maximum 70
Power consumption minimum 2.8 / maximum 6.5
Range (approx.) outdoors (m) 300 / in buildings (m) 50
Relative humidity (%) minimum 20 / maximum 80 / Supplement (not condensing)
Repeaters per base station Value up to 3 COMfortel WS-R2 / R4 per base
System connection Ethernet 10/100 Base-T (10/100MBit/s, RJ-45 twisted pair)
Transmission protocol GAP, DECT
VoIP codecs G.729 / G.711, G.726
VoIP log file SIP compliant to RFC 3261
VoIP transmission channels (concurrently between IP-DECT and PBX) maximum 6
Delivery scope
  • COMfortel WS-400 IP
  • Mounting hardware (screws and dowels)
  • Setup Guide (de/en)

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