To ensure that you are able to use the COMfortel D-400 safely and without faults, comply with the notes below. Improper use may, for example, cause functional restrictions, destruction of the device or, in a worst case scenario, personal injury. You will find any necessary additional warning notices about using the device in the relevant sections.

Read the instructions for the device and keep them for future reference.

Danger of electric shock. Connect the device as described in these Instructions. Only connect the device's connection cables to wall sockets that are designed for that purpose, and that have been properly installed. Take note of the technical data on the type plate and in these Instructions. Only use original accessories and original replacement parts.

Risk of hearing damage and/or disrupted voice connection due to the use of unsuitable headsets, external speakers or earpieces. Take note of the technical information about connecting a headset.

Risk of electric shock during thunderstorms. Have all cables installed inside the building (by a qualified electrician).

Possible damage due to overheating. Never cover the device.

Only operate the telephone in enclosed, dry spaces.

Possible damage from falling objects. Place the device so that the display is protected from falling objects.

Danger of electric shock. Never use a damaged device.

Risk of electric shock during thunderstorms. Do not touch the device during an electrical storm.

Not for use in life support systems or applications within nuclear facilities. The device can only be used for these purposes with prior written permission/clarification from the manufacturer in each individual case.

Potential danger to persons due to incomplete or faulty setup, e.g. due to emergency calls not being able to be made. The product is configured using the telephone or an integrated web server whose pages are accessed using a web browser. The associated help is provided in English, German or French. If you are not familiar with these languages, and the technical terms that are used, seek support from someone who has the necessary technical and language skills.

Danger of electric shock. Do not open the device. Only the manufacturer is permitted to open the device and repair it.

Risk of injury. If the display is damaged, be careful when handling and packing the device.

Possible damage from penetrating liquids. Only clean the device with a dry cloth.