CADAS Softhpone is a software, which allows users to connect with the CallServer switch over an Internet connection. It can be used both on a telephone studio in a local network, as well as in a wide area network (Cati@Home).

Thanks to the simplified installation and configuration process the software can be successfully used by people having no technical background, which would be normally required in case of SIP2-based phones. Additionally the software does not require the user to purchase any additional licenses. Another benefit of this software is its NAT support capability, which makes it suitable for development of distributed Cati@Home networks.