Exhibit 2.17 MITEL NETWORKS CORPORATION CLASS A CONVERTIBLE PREFERRED SHARE SUBSCRIPTION AGREEMENT April 23, 2004 Portions of this document marked with "***" are subject to a pending Confidential Treatment Request filed with the Secretary of the...Class a Convertible Preferred Share Subscription Agreement • October 31st, 2006 • Mitel Networks Corp • Radio & tv broadcasting & communications equipment • Ontario
