This top end System Phone sets new standards in the functionality and ease of use. The user concept has been completely redesigned. Soft Keys below the display area will guide you to the next available function. This is by far the most advanced user guidance you could ever imagine.

The housing has been designed after a complex research and is ergonomically perfect. The illuminated graphic display will produce text and images with a maximum possible contrast (black letters on white background). The display itself can be adjusted to give a perfect viewing angle. The volume of the receiver and sensitivity of the microphone can be adjusted separately. Underneath the ST 40 there are two module slots. One slot can be equipped with the Digital Telephone Answering Machine, the A-Module 40 with Announcement Management System. The second slot is reserved for future technologies such as Bluetooth for example. An interface for the connection of cordless headsets to the DHSG standard is included. There will be no need for unsightly Headset Lifters.

• Phone book
• Call log
• Extension/line status in main display or BLF on soft keys
• CLIP, see who is calling
• Handsfree speakerphone
• Headset port
• SMS function (only with optional A-Module 40)
• Graphic user guidance
• Navigation keys
• Prepared to add STE 40 Expansion Unit
• White