Our commitment to barrier-free communication
WS 311V CM DA
While developing WS 311V CM DA, Commend's commitment was to provide an Intercom station that was to be especially easy to operate by any user while providing clear intelligibility under all ambient conditions. The target was to build "the world's most barrier-free Intercom station".
The special Intercom station equipment developed for this purpose ranges from a special call button in contrasting colour for the visually impaired and extra large LED pictograms to HD Voice sound and inductive speech transmission.
The resulting multi-purpose Intercom station even exceeds the official requirements for people with visual and hearing impairments and the accessibility regulations in accordance with the equal opportunities for the disabled principle ("Two-Senses Principle").
What is more, the integrated IEC 60118-4 compliant induction loop system is setting new worldwide standards in Intercom barrier freeness for the benefit of user and customers. This induction loop system offers a wider frequency response, has got a larger area coverage and people with hearing aids are able to get a superior sound quality.
The 3 mm thick stainless steel front panel with tamper protection and special screws offers protection against vandalism. The robust construction also provides full protection against water, dirt and dust and is IP66-rated.
The Interom station is equipped with a sensitive camera sensor that offers a superior dynamic range. Despite the flat front glass the camera still has a very wide viewing angle, both horizontally and vertically.

Features
- Two built-in loudspeakers support high audio volumes and superior acoustic intelligibility; they also allow automated playback of pre-recorded audio messages for user guidance purposes.
- The camera provides a very large viewing angle (150° diagonally) as well as an ultra high dynamic range. In addition, the station is equipped with flat scratch-resistant camera glass for extra sabotage protection.
- Extra large, bright coloured LED pictograms provide users with clearly visible feedback on current device transactions and operating states.
- A more than 3.8 square inch illuminated call button with tactile bell symbol and high-contrast colouring allows easy operation of the Intercom station at any time of the day.
- 12 white LEDs make a big difference, as they make colours visible even at night – another feature that sets the station series above other Intercom stations on the market.
- Two digital MEMS microphones ensure high sound quality, reliability, durability and robustness. The bevelled edge of the microphones adds to the stability of the series WS 311V CM DA stations.
- An optional location identification message (e.g. “Emergency Call Station at Subway Station West Park”) can be defined for each station individually. The identification message is played back automatically when the operator at the control desk or que-ry point takes the call.
- Quickly assign calls and reduce waiting times. In serverless communication scenarios the next free query point is found by calling each one using an action sequence. Server integration, on the other hand, allows for incoming calls to be allocated instantly and automatically to the next available opera-tor (e.g. at a call centre).
- Stations come with the ability to remote-control relays. Doors, shutters, gates and barriers open effortlessly at the touch of a button (desktop or mobile telephone). Easy control of signal lamps and other subsections
- This principle requires information to be presented clearly so that it can be perceived through two complementary senses: Acoustic information must also be indicated visually, and visual information must also be represented either acoustically or by tactile means.
Information
Symphony Cloud
Our cloud-based solution platform is built on highly scalable cloud infrastructure, powerful software and extensive features, with the clear aim of harnessing the power of current and future cloud services incl. AI.
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Symphony On-Prem
VirtuoSIS, our fully software-based Intercom Server, is the solution of choice for on-premise arrangements. It runs in a variety of virtual IT infrastructure and also forms the core element of our S6 and S3 hardware servers.
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Symphony Mesh
IP devices (Symphony MX / Symphony BF) combine into an intelligent autonomous communication network without a server.
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SIP-PBX-Server
Integration of Commend devices into SIP-PBX systems from various manufacturers.
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Integrations
Commend solutions and devices can be connected to other systems (VMS, PSIM, ...) from leading manufacturers.
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