TDS managedIP Hosted Unified Communications (UC), a mobile solution that allows you to be more productive by extending your business voice platform to any device - your mobile, tablet, and desktop.  Whether you are in or out of the office, get access to your corporate voice platform features and functionality from anywhere:
    • Call Control
    • Instant Messaging
    • Unified Messaging
    • Presence (Calendar & Device)
    • Video & Audio Conferencing
    • Soft Phone – Video & Voice Calling
    • Group Chat 
    • Direct Line Call Through to Mobile Device
    • Corporate Directory
    • Call History – Placed, Missed, Received (All Devices)
    • Configurable Call Settings from Mobile Device 
Unified Communications is a license based application that must be purchase by your business from your service provider (TDS) and requires the user to have a TDS managedIP Hosted package, the UC clients and login credentials.
http://support.tdsmanagedip.com/hosted.html