Cisco Systems said it's <A HREF="http://news.yahoo.com/s/ap/20060306/ap_on_hi_te/cisco_microsoft">partnering with Microsoft</A> to create a package of communications tools geared for businesses. Part of its efforts to diversify and expand its revenue stream, San Jose, Calif.-based Cisco is launching the "Cisco Unified Communications" system that will integrate voice, data and video products and applications.