COMfortel SoftPhone Mobile is a softphone application designed for telephony and instant messaging on the iPhone platform. This app facilitates seamless business communication transition between office and home office environments. To utilize the app, users need a TK system from the COMtrexx product line (starting from software versionor alternatively a COMpact TK system such as COMpact 4000, 5200, 5200R, or 5500R with firmware version 8.4 or higher. Specific PBX activations may be required for COMfortel SoftPhone usage, as indicated on the compatible TK system product pages. The app enables users to access communication functions and features of the mentioned TK systems regardless of their location. Some key features include automatic provisioning, call hold/transfer, click-to-dial, instant messaging, echo cancellation, and noise reduction.