Innovative Communications Alliance
The Innovative Communications Alliance (ICA) was a telecommunications alliance between Microsoft and Nortel, created in July 2006, to co-develop, integrate, market, sell, and support unified communications products. The goal of the alliance is to make integrated hardware and software solutions that join together voice, video, and data communications without requiring gateways or middleware.
Source: Wikipedia — Innovative Communications Alliance (CC BY-SA 4.0)