1 EXHIBIT 10.1 WARRANT AGREEMENT WARRANT AGREEMENT dated April 1, 1999 between NUCENTRIX BROADBAND NETWORKS, INC. (f/k/a Heartland Wireless Communications, Inc.) (the "Company"), and Harris Trust and Savings Bank, as Warrant Agent (the "Warrant...Warrant Agreement • May 17th, 1999 • Nucentrix Broadband Networks Inc • Cable & other pay television services • Delaware
